Trends in invasive bacterial diseases during the first 2 years of the COVID-19 pandemic: analyses of prospective surveillance data from 30 countries and territories in the IRIS Consortium.

BACKGROUND: The Invasive Respiratory Infection Surveillance (IRIS) Consortium was established to assess the impact of the COVID-19 pandemic on invasive diseases caused by Streptococcus pneumoniae, Haemophilus influenzae, Neisseria meningitidis, and Streptococcus agalactiae. We aimed to analyse the incidence and distribution of these diseases during the first 2 years of the COVID-19 pandemic compared to the 2 years preceding the pandemic. METHODS: For this prospective analysis, laboratories in 30 countries and territories representing five continents submitted surveillance data from Jan 1, 2018, to Jan 2, 2022, to private projects within databases in PubMLST. The impact of COVID-19 containment measures on the overall number of cases was analysed, and changes in disease distributions by patient age and serotype or group were examined. Interrupted time-series analyses were done to quantify the impact of pandemic response measures and their relaxation on disease rates, and autoregressive integrated moving average models were used to estimate effect sizes and forecast counterfactual trends by hemisphere. FINDINGS: Overall, 116 841 cases were analysed: 76 481 in 2018-19, before the pandemic, and 40 360 in 2020-21, during the pandemic. During the pandemic there was a significant reduction in the risk of disease caused by S pneumoniae (risk ratio 0·47; 95% CI 0·40-0·55), H influenzae (0·51; 0·40-0·66) and N meningitidis (0·26; 0·21-0·31), while no significant changes were observed for S agalactiae (1·02; 0·75-1·40), which is not transmitted via the respiratory route. No major changes in the distribution of cases were observed when stratified by patient age or serotype or group. An estimated 36 289 (95% prediction interval 17 145-55 434) cases of invasive bacterial disease were averted during the first 2 years of the pandemic among IRIS-participating countries and territories. INTERPRETATION: COVID-19 containment measures were associated with a sustained decrease in the incidence of invasive disease caused by S pneumoniae, H influenzae, and N meningitidis during the first 2 years of the pandemic, but cases began to increase in some countries towards the end of 2021 as pandemic restrictions were lifted. These IRIS data provide a better understanding of microbial transmission, will inform vaccine development and implementation, and can contribute to health-care service planning and provision of policies. FUNDING: Wellcome Trust, NIHR Oxford Biomedical Research Centre, Spanish Ministry of Science and Innovation, Korea Disease Control and Prevention Agency, Torsten Söderberg Foundation, Stockholm County Council, Swedish Research Council, German Federal Ministry of Health, Robert Koch Institute, Pfizer, Merck, and the Greek National Public Health Organization.

Serotypes and antimicrobial resistance of Streptococcus pneumoniae in children under 5 years of age pre- and post-pneumococcal conjugate vaccine introduction in Paraguay.

Introduction. Streptococcus pneumoniae remains a major cause of mortality and morbidity worldwide in children <5 years of age, even with advances in vaccination programmes.Hypothesis/Gap Statement. Reviewing and reporting trends in the distribution of pneumococcal serotypes and antimicrobial resistance in Paraguay will be useful for decision-making in public health.Aim. This study analysed the serotype distribution and antimicrobial resistance of S. pneumoniae and the characteristics of pneumococcal disease in children <5 years old before and after the introduction of pneumococcal conjugate vaccines (PCVs).Methodology. A total of 885 isolates and 278 S. pneumoniae PCR-positive clinical specimens were referred to the Central Laboratory of Public Health (LCSP) within the meningitis and pneumonia laboratory based-surveillance network in the period 2006-2020. Conventional and molecular microbiological techniques were used for confirmation and characterization.Results. We identified 563 cases of pneumococcal disease in the pre-vaccination period, 325 cases in the post-PCV10 period and 275 cases in the post-PCV13 period. The serotypes covered by PCV10 decreased from 78.6-6.5 %. However, additional serotypes covered by PCV13 increased from 6.6-57.5% and non-PCV13 serotypes increased from 14.8-36.0 % (P<0.001) in the post-PCV13 period. In cases of meningitis, the rate of resistance to penicillin decreased after the introduction of conjugate vaccines. No resistance to ceftriaxone was found in any period. In cases without meningitis, the rate of resistance to penicillin and ceftriaxone decreased slightly. However, the rate of resistance to erythromycin and tetracycline increased and that to trimethoprim-sulfamethoxazole (SXT) decreased in the post-PCV13 period compared to the pre-PCV period. The multidrug resistance rate was 8.5 %.Conclusion. A change in the circulating serotypes and antimicrobial resistance to certain antibiotics was observed. Non-vaccine serotype circulation and multidrug resistance may compromise the success of the conjugate vaccines.

Nasopharyngeal colonization by Streptococcus pneumoniae in children and adults before the introduction of the 10-valent conjugate vaccine, Paraguay.

Streptococcus pneumoniae is a cause of invasive diseases such as pneumonia, meningitis, and other serious infections among children and adults in Paraguay. This study was conducted to establish S. pneumoniae baseline prevalence, serotype distribution, and antibiotic resistance patterns in healthy children aged 2 to 59 months and adults ≥60 years of age prior to the introduction of PCV10 in the national childhood immunization program in Paraguay. Between April and July 2012, a total of 1444 nasopharyngeal swabs were collected, 718 from children aged 2 to 59 months and 726 from adults ≥60 years of age. The pneumococcal isolation, serotyping, and antibiotic susceptibility testing were performed using standard tests. Pneumococcal colonization prevalence was 34.1% (245/718) in children and 3.3% (24/726) in adults. The most frequent pneumococcal vaccine-types (VT) detected in the children were 6B (42/245), 19F (32/245), 14 (17/245), and 23F (20/245). Carriage prevalence with PCV10 serotypes was 50.6% (124/245) and PCV13 was 59.5% (146/245). Among colonized adults, prevalence of PCV10 and PCV13 serotypes were 29.1% (7/24) and 41.6% (10/24), respectively. Colonized children were more likely to share a bedroom, have a history of respiratory infection or pneumococcal infection compared to non-colonized children. no associations were found in adults. However, no significant associations were found in children and neither in adults. Vaccine-type pneumococcal colonization was highly prevalent in children and rare in adults in Paraguay prior to vaccine introduction, supporting the introduction of PCV10 in the country in 2012. These data will be useful to evaluate the impact of PCV introduction in the country.

Genotypic characterization and clonal relatedness of metallo-ß-lactamase-producing non-fermentative gram negative bacteria in the first 5 years of their circulation in Paraguay (2011-2015).

Pseudomonas aeruginosa and species of Acinetobacter calcoaceticus-baumanii complex are multiresistant intrahospital opportunistic pathogens, able to acquire carbapenemases and produce outbreaks with high morbidity and mortality. Pseudomonas putida has also emerged with similar characteristics. The aim of this research was to characterize the Metallo-ß-lactamases (MBLs) detected by surveillance in Paraguay in the first 5 years of their circulation in hospitals. The coexistence of KPC and OXA-type carbapenemases was also investigated. 70 MBL-producing strains from inpatients were detected from clinical samples and rectal swab from 11 hospitals. The strains were identified by manual, automated, and molecular methods. Antimicrobial susceptibility was studied by Kirby-Bauer and automated methods, while colistin susceptibility was determined by broth macrodilution. MBLs were investigated by synergy with EDTA against carbapenems and PCR, and their variants by sequencing. KPC and OXA-carbapenemases were investigated by PCR. Clonality was studied by pulsed-field gel electrophoresis (PFGE). The results demonstrated the circulation of blaVIM-2 (60%), blaNDM-1 (36%), and blaIMP-18 (4%). The MBL-producing species were P. putida (45.7%), P. aeruginosa (17.2%), A. baumannii (24.3%), A. pittii (5.7%), A. nosocomialis, (4.3%) A. haemolyticus (1.4%), and A. bereziniae (1.4%). PFGE analysis showed one dominant clone for A. baumannii, a predominant clone for half of the strains of P. aeruginosa, and a polyclonal spread for P. putida. In the first 5 years of circulation in Paraguay, MBLs were disseminated as unique variants per genotype, appeared only in Pseudomonas spp. and Acinetobacter spp., probably through horizontal transmission between species and vertical by some successful clones.

Caracterización epidemio-molecular de la infección por Clostridioides difficile en pacientes hospitalizados con cuadro diarreico en instituciones de salud. 2019

La infección por Clostridioides difficile es una de las principales causas de diarrea nosocomial en hospitales del mundo, asociada a antibióticos de amplio espectro. Estudio descriptivo, retrospectivo, de corte transverso, de tipo censal. Se estudiaron 281 muestras de pacientes hospitalizados con la infección, se analizaron características socio-demográficas, clínicas y se caracterizó molecularmente al patógeno. Como resultado, se obtuvieron pacientes con la infección con una mediana de edad de 64 años siendo el 61,5 % del sexo masculino. El promedio de presentación del cuadro diarreico fue de 5 días, con tratamiento antimicrobiano de 8 días e internación de 15 días. El 94% tuvo tratamiento antimicrobiano previo, y el 6% estuvo expuesto a algún factor de riesgo. Los antimicrobianos más utilizados solos o en combinación fueron betalactámicos, fluoroquinolonas, vancomicina y carbapenémicos. Las áreas de internación con mayor frecuencia de presentación de la infección fueron las unidades de Clínica Médica, Traumatología, Geriatría y Unidad de Terapia Intensiva. La prevalencia de C. difficile toxigénico fue de 14%, y de esta frecuencia el 100% presentó toxinas TcdA y TcdB, con ausencia de toxinas binarias y deleción del gen tcdC. Se constató la presencia grupos clonales en la misma unidad de internación y misma institución de salud. El 100% de las cepas resultaron susceptibles a los antibióticos de elección para la infección. La prevalencia de la infección y presencia de perfiles clonales detectadas revelan la necesidad de un mejoramiento en el sistema de control de infecciones, así como del fortalecimiento y vigilancia de la resistencia antimicrobiana.

Clostridioides difficile infection is one of the main causes of nosocomial diarrhea in hospitals worldwide, associated with broad-spectrum antibiotics. Descriptive, retrospective, cross-sectional, census-type study. Two hundred eighty-one samples from patients hospitalized with the infection were studied, sociodemographic and clinical characteristics were analyzed and the pathogen was characterized molecularly. As a result, patients with the infection had a median age of 64 years and 61.5% male. The average presentation of diarrhea was 5 days, antimicrobial treatment 8 days and hospitalization 15 days. Ninety four percent had previous antimicrobial treatment, and 6% were exposed to some risk factor. The most commonly used antimicrobials alone or in combination were beta-lactams, fluoroquinolones, vancomycin, and carbapenems. The hospitalization areas with the highest frequency of presentation of the infection were the Clinical Medicine, Traumatology, Geriatrics and Intensive Care Unit units. The prevalence of toxigenic C. difficile was 14%, and of this frequency, 100% presented TcdA and TcdB toxins, with the absence of binary toxins and deletion of the tcdC gene. The presence of clonal groups was verified in the same hospitalization unit and the same health institution. All the strains were susceptible to the antibiotics of choice for the infection. The prevalence of infection and the presence of clonal profiles detected reveal the need for improvement of the infection control system, as well as of the strengthening and surveillance of antimicrobial resistance.

Distribución de virus de papiloma humano de alto riesgo oncogénico y otras infecciones de transmisión sexual en mujeres paraguayas con y sin virus de la inmunodeficiencia humana

El virus de papiloma humano de alto riesgo oncogénico (VPH-AR) es causa necesaria pero no suficiente para la ocurrencia de cáncer de cuello uterino (CCU). Mujeres portadoras del virus de inmunodeficiencia humana (VIH) presentan mayor riesgo de desarrollar lesiones precursoras del cáncer de cuello de útero, por ello, el objetivo del presente trabajo prospectivo de corte transversal fue determinar la frecuencia de VPH-AR y otras infecciones de transmisión sexual-ITS (condilomas, sífilis, virus del herpes simple, gonorrea, citomegalovirus, hepatitis B) en 218 mujeres con y sin VIH que acudieron al Programa Nacional de Lucha contra el SIDA (PRONASIDA) desde julio 2017 hasta marzo 2021. Se encontró que 16/54 (29,6%) mujeres VIH-positivas presentaron infección por VPH-AR en comparación a 41/164 (25%) mujeres VIH-negativas (p>0,05). En relación a la edad, mujeres VIH positivas presentaron una frecuencia comparable de infección por VPH-AR (30 años 30,2%), a diferencia de mujeres VIH negativas donde hubo una disminución significativa de la infección por VPH-AR luego de los 30 años (30 años 18,8%, p= 0,028). Esto podría explicarse por la inmunosupresión observada en mujeres VIH positivas que podría favorecer infecciones persistentes, sugiriendo que deben ser controladas más cercanamente. Además, se observó mayor frecuencia de otras ITS en mujeres VIH positivas (29,6% vs 15,8%, p=0,026), lo cual sugiere que aparte del monitoreo más cercano, es fundamental fortalecer la educación sobre factores de riesgo para la ITS sobre todo VPH y VIH, así como la realización de prevención primaria por vacunación contra el VPH.

High-risk human papillomavirus (HPV-HR) is a necessary but not sufficient cause for cervical cancer (CC). Women carriers of human immunodeficiency virus (HIV) present an increased risk for the development of cervical cancer precursor lesions, therefore, the objective of the present prospective cross-sectional study was to determine the frequency of HPV-HR and other sexually transmitted infections-STIs (condylomas, syphilis, herpes simplex virus, gonorrhoea, cytomegalovirus, hepatitis B) in 218 women with and without HIV who attended the Ministry of Health from July 2017 to March 2021. It was found that 16/54 (29.6%) HIV-positive women had HPV infection compared to 41/164 (25%) HIV-negative women (p>0.05). In relation to age, HIV-positive women had a comparable frequency of HPV infection (30 years 30.2%), unlike HIV-negative women whom above 30 years of age presented a significant decrease in HPV-AR infection (30 years 18.8%, p:0.028). This could be explained by the immunosuppression observed in HIV-positive women which could favour persistent infections, suggesting that they should be controlled more closely. In addition, other STIs were observed to be more frequent in HIV-positive women (29.6% vs 15.8%, p:0.026), which suggests that apart from closer monitoring, it is essential to strengthen education on risk factors for STIs, especially HPV and HIV, as well as the implementation of primary prevention by vaccination against HPV.

Deficiencias de cobre, hierro y zinc en niños menores de 5 años

Introducción: La determinación de niveles séricos de micronutrientes de los niños menores de 5 años, es un requerimiento básico para establecer la prevalencia de deficiencias nutricionales de la población infantil y es una estrategia útil para incentivar a Salud Pública para que tome medidas en cuanto a aplicación y/o modificación de las Políticas Alimentarias Nacionales. Objetivo: Determinar los niveles séricos de cobre, hierro y zinc en niños paraguayos menores de 5 años. Materiales y Métodos: Estudio observacional, descriptivo y de corte transversal. Se procesaron las muestras de sangre de 1.441 niños menores de 5 años de edad que provenían de los Departamentos de Alto Paraná, Caaguazú, Central y de la capital de Paraguay. Se realizaron hemogramas y se determinaron las concentraciones séricas de albúmina, cobre, ferritina y zinc, de todas las muestras. Resultados: Los niños tuvieron una edad promedio de 3 años y 3 meses, fueron 52,74% de sexo masculino y 47,26% de sexo femenino. La prevalencia de anemia fue de 45,25% y la prevalencia de hipoalbuminemia fue de 20,65%. Se detectaron deficiencias de cobre en 14,03%, de ferritina en 6,98% y de zinc en 43,62%, de los niños. Conclusión: Los resultados de este estudio avalan la necesidad de ampliar la cobertura del Programa Alimentario Nutricional Integral (PANI), de plantearse si se deben ajustar las cantidades de minerales y vitaminas de la fórmula nutricional del Programa y de mejorar el seguimiento de los controles prenatales de las madres.

Introduction: The determination of serum levels of micronutrients in children under 5 years of age is a basic requirement to establish the prevalence of nutritional deficiencies in the child population and is a useful strategy to encourage Public Health agencies to take steps regarding application. and/or modification of National Food Policies. Objective: To determine the serum levels of copper, iron and zinc in Paraguayan children under 5 years of age. Materials and Methods: This was an observational, descriptive and cross-sectional study. Blood samples from 1,441 children under 5 years of age who came from the Departments of Alto Paraná, Caaguazú, Central and the capital of Paraguay were processed. Complete blood counts were performed and the serum concentrations of albumin, copper, ferritin and zinc were determined in all samples. Results: The children in this study had an average age of 3 years and 3 months, they were 52.74% male and 47.26% female. The prevalence of anemia was 45.25% and the prevalence of hypoalbuminemia was 20.65%. Copper deficiencies were detected in 14.03%, ferritin in 6.98% and zinc in 43.62% of the children. Conclusion: The results of this study support the need to expand the coverage of the Comprehensive Nutritional Food Program (PANI program), to consider whether the amounts of minerals and vitamins in the Program's nutritional formula should be adjusted, and to improve prenatal care.

Serogrupos y resistencia antimicrobiana de Neisseria meningitidis causantes de enfermedad invasiva en Paraguay

RESUMEN La enfermedad meningocócica representa un problema de salud pública y una de las principales causas de morbilidad y mortalidad en todo el mundo. Los serogrupos que causan la mayor carga de enfermedad a nivel global son A, B, C, W e Y. El objetivo del estudio fue describir los serogrupos y la resistencia antimicrobiana de Neisseria meningitidis aisladas de enfermedad invasiva en Paraguay durante el periodo 2010-2020. Se estudiaron todas las muestras de líquido cefalorraquídeo y sangre con aislamientos o detección de ADN por PCR de N. meningitidis de pacientes de diversas edades, que fueron remitidas al Laboratorio Central de Salud Pública durante el periodo 2010-2020, dentro del marco de la vigilancia epidemiológica de meningitis (n=163) en Paraguay. La mayor frecuencia de hallazgos de N. meningitidis se observó en el grupo de edad de < 1 año. El 25,7% de los casos correspondió al serogrupo B, el 52,1% al serogrupo C, 18,4% al serogrupo W y 3,7% al serogrupo Y. En el 2018, se evidenció la mayor cantidad de casos por serogrupo C (n=27). La menor frecuencia de sensibilidad disminuida a penicilina G fue en el 2010 (12,5%) y la mayor en el 2014 (100,0%). Se registró un aumento de casos por serogrupo C a partir del 2017, posicionándose como serogrupo prevalente hasta el 2020, y además, un aumento de la sensibilidad disminuida a la penicilina. La vigilancia es de importancia en el control de la enfermedad meningocócica para detección de brotes, estimación de la carga de enfermedad, análisis de resistencia antimicrobiana, distribución de serogrupos y evaluaciones de estrategias de control.

ABSTRACT Meningococcal disease represents a public health problem and one of the main causes of morbidity and mortality worldwide. The serogroups that cause the highest burden of disease globally are A, B, C, W, and Y. The aim of the study was to describe serogroups and antimicrobial resistance of Neisseria meningitidis isolated from invasive disease in Paraguay during the 2010-2020 period. Samples of cerebrospinal fluid and blood with isolates or detection of DNA by PCR of N. meningitidis from patients of different ages referred to the Central Public Health Laboratory during the period 2010-2020 within the framework of the epidemiological surveillance of meningitis (n = 163) in Paraguay were studied. The highest frequency of N. meningitidis findings was observed in the <1 year age group, 25.7% of the cases corresponded to serogroup B, 52.1% to serogroup C, 18.4% to serogroup W and 3.7% to serogroup Y. In 2018, the highest number of cases by serogroup C (n = 27) was found. The lowest frequency of decreased sensitivity to penicillin G was in 2010 (12.5%) and the highest in 2014 (100.0%). There was an increase in cases due to serogroup C in 2017, positioning itself as the prevalent serogroup until 2020, in addition, there was an increase in decreased sensitivity to penicillin. Surveillance is important in the control of meningococcal disease for outbreak detection, estimation of the burden of disease, analysis of antimicrobial resistance, serogroup distribution, and evaluations of control strategies.

Primer reporte de Enterobacterales dobles productores de carbapenemasas en hospitales de Paraguay. Año 2021

RESUMEN Las carbapenemasas se encuentran ampliamente distribuidas en nuestro país, tanto en bacilos gramnegativos fermentadores como no fermentadores. Durante 2021, se ha reportado incremento de cepas con estas enzimas. Con el objetivo de evaluar la doble producción de carbapenemasas en Enterobacterales y comunicar su circulación, fue puesta a punto una PCR convencional múltiple. Estudio retrospectivo en 128 aislamientos provenientes de 20 centros colaboradores de la Red Nacional de Vigilancia de la RAM (Capital, Central e interior del país), remitidos al LCSP entre febrero y setiembre de 2021, para confirmación y genotipificación de carbapenemasas. Se realizaron pruebas fenotípicas y colorimétricas con sustratos específicos, y pruebas genotípicas (PCR convencional múltiple) para la detección simultánea de varios genes de resistencia (bla NDM, bla KPC, bla OXA-48-like, bla IMP y bla VIM). De los 128 aislamientos estudiados, 107 correspondieron a Klebsiella pneumoniae, 14 a Enterobacter cloacae complex, entre otros; aislados en mayor frecuencia de muestras de orina (30%), respiratorias (30%), sangre y catéter (24%). Los genes de resistencia a los carbapenemes detectados fueron: bla NDM (77,3%), bla KPC (17,2%); siendo confirmada la doble producción de carbapenemasas en 7 aislamientos (5,5%) provenientes de 4 centros diferentes de la capital de país y uno de Central; 6 de ellas (K. pneumoniae) con bla NDM+bla KPC y 1 (E. cloacae complex) con bla NDM+bla OXA-48-like; confirmando circulación de Enterobacterales dobles productores de carbapenemasas en el país (KPC+NDM y OXA+NDM); hallazgos que obligan a proveer de capacidades de detección, de manera a que se puedan tomar medidas oportunas y eficaces de contención y control.

ABSTRACT Carbapenemases are widely distributed in our country, both in fermenting and non-fermenting gram-negative bacilli. During 2021, an increase in strains with these enzymes has been reported. In order to evaluate the double production of carbapenemases in Enterobacterales and communicate their circulation, a multiple conventional PCR was set up. Retrospective study carried out in 128 isolates from 20 collaborating centers of the National AMR Surveillance Network (Capital, Central and interior of the country), sent to the LCSP between February and September 2021, for confirmation and genotyping of carbapenemases. Phenotypic and colorimetric tests were performed with specific substrates, as well as genotypic tests (multiple conventional PCR) for the simultaneous detection of several resistance genes (blaNDM, blaKPC, blaOXA-48-like, blaIMP and blaVIM). Of the 128 isolates studied, 107 corresponded to Klebsiella pneumoniae, 14 to Enterobacter cloacae complex, among others; isolated in higher frequency from urine (30%), respiratory (30%), blood and catheter (24%) samples. The genes for resistance to carbapenems detected were: blaNDM (77.3%), blaKPC (17.2%); the double production of carbapenemases was confirmed in 7 isolates (5.5%) from 4 different centers in the capital of the country and one in Central; 6 of them (K. pneumoniae) with blaNDM + blaKPC and 1 (E. cloacae complex) with blaNDM + blaOXA-48-like; confirming circulation of double Enterobacterales producers of carbapenemases in the country (KPC + NDM and OXA + NDM); findings that require the provision of detection capabilities, so that timely and effective containment and control measures can be taken.

Caracterización molecular de carbapenemasas en bacilos gramnegativos circulantes en hospitales de Paraguay. Primer cuatrimestre 2021 / Molecular characterization of carbapenemases in Gram-negative bacilli circulating in hospitals of Paraguay. First quarter of 2021

La resistencia a los antimicrobianos (RAM), representa un grave problema por el uso indiscriminado de antimicrobianos de amplio espectro. En nuestro país, durante el primer cuatrimestre del año, se observó un aumento inusual en el número de aislamiento de gérmenes multirresistentes, sobre todo de bacilos gramnegativos, los cuales fueron remitidos al laboratorio de referencia con el objetivo de caracterizar los genes de resistencia a los carbapenemes. Estudio observacional y prospectivo de corte transversal en 456 aislamientos de bacilos gramnegativos provenientes de 11 centros colaboradores de la Red Nacional de Vigilancia de la RAM, remitidos al Laboratorio Central de Salud Pública entre enero y abril de 2021, para la detección molecular (reacción en cadena de la polimerasa múltiple) de los genes de resistencia enzimática bla OXA-51, bla OXA-23, bla OXA-24, bla OXA-48, bla OXA-58, bla NDM, bla KPC, bla IMP, bla VIM. Trescientos sesenta correspondieron a bacilos gramnegativos no fermentadores: 346 Acinetobacter baumannii y 14 Pseudomonas aeruginosa; 96 fueron miembros de Enterobacterales, siendo prevalente Klebsiella pneumoniae (81). Todos los aislamientos de Acinetobacter baumannii resultaron ser productores de carbapenemasas: OXA-23 (94%), NDM (4%), NMD+OXA-58 (2%); en Pseudomonas aeruginosa, 7 de los 14 aislamientos (50%) fueron portadores de metalobetalactamasa del genotipo NDM (100%). Los genotipos NDM (92%) y KPC (8%) fueron confirmados en Enterobacterales. La resistencia plasmídica a carbapenemes es endémica en nuestro país, siendo prevalentes los genotipos OXA-23 en Acinetobacter baumannii y NDM en Pseudomonas aeruginosa y Enterobacterales

Antimicrobial resistance (AMR) represents a serious problem due to the indiscriminate use of broad-spectrum antimicrobials. During the first quarter of the year, an unusual increase in the number of isolation multi-resistant germs, especially gram-negative bacilli was observed, specially of Gram-negative bacilli which were referred to the reference laboratory in order to characterize the carbapenems resistance genes. Observational and prospective cross-sectional study in 456 isolates of Gram-negative bacilli from 11 collaborating centers of the National AMR Surveillance Network, referred to the Central Public Health Laboratory (LCSP) between January and April 2021, for molecular detection (multiple polymerase chain reaction) targeting the enzymatic resistance genes: bla OXA-51, bla OXA-23, bla OXA-24, bla OXA-48, bla OXA-58, bla NDM, bla KPC, bla IMP, bla VIM. Of the 456 isolates studied, 360 corresponded to non-fermenting Gram-negative bacilli, of which 346 were confirmed as Acinetobacter baumannii and 14 Pseudomonas aeruginosa; 96 were Enterobacterales, being Klebsiella pneumoniae (81) the most prevalent. All isolates of Acinetobacter baumannii carried genes encoding carbapenemases, being the OXA-23 (94%) followed by NDM (4%) and NDM +OXA-58 (2%). In Pseudomonas aeruginosa strains, 7 of the 14 isolates (50%) were carriers of NDM metallobetalactamase (100%). No carbapenemase gene was detected in the remaining 7. In all Enterobacterales strains, the presence of carbapenemases of the NDM (92%) and KPC (8%) genotypes were confirmed. Plasmid resistance to carbapenems is endemic in our country, being the OXA-23 genotypes prevalent in Acinetobacter baumannii and NDM in Pseudomonas aeruginosa and Enterobacterales

Prevalencia de anemia en niños de 1 a 4 años de edad en Asunción y Central, Paraguay 2017

RESUMEN Introducción: Los niños constituyen el grupo más afectado por la anemia. En Paraguay no existen datos actualizados sobre prevalencia de anemia en menores de 5 años. Objetivos: Determinar la prevalencia de anemia en niños previamente sanos de 1 a 4 años que acuden a consultorios de servicios de salud y guarderías de Asunción y Central de Paraguay, durante el año 2017. Materiales y Métodos: Estudio prospectivo, de corte transverso, observacional, descriptivo. Muestreo aleatorio, estratificado. Nivel de confianza: 95% Error de muestra: 5%. Variables: edad, sexo, hemoglobina, índices hematimétricos, ferritina, Proteína C reactiva (PCR), albúmina, zPeso/Edad, zPeso/Talla, zTalla/Edad, peso al nacer. Fueron analizadas medidas paramétricas y no paramétricas, χ2. La anemia se definió por criterios OMS para el grupo de 1 a 5 años de edad: Hemoglobina Hb<11 g/dL y Volumen Corpuscular Medio VCM< 72 fL Se utilizó el Programa Anthro v 3.2.2 y SPSS 16.0. Aprobado por Comité de Ética del Instituto de Medicina Tropical, se obtuvo consentimiento informado. Nivel de significancia<0,05. Resultados: Fueron reclutados 806 pacientes. Se determinó Hb, VCM y ferritina en 706 pacientes.327 (46,3%) fueron varones. El promedio de Hb fue 11,9±1,03 g/dL. Volumen corpuscular medio promedio 71,2±26 fL. Se encontraron 83/706 pacientes con anemia (11,8%), 44/83 (53%) fueron microcíticas (VMC<72 fL). PCR negativa 640/706 (90,7%) pacientes. El promedio de albuminemia fue 4,5±0,2 g/dL. El promedio de z Peso/Edad fue 0,29±1,33, z Peso/Talla -0,38±1,52 y el z Talla/Edad fue 0,92±1,64. Ferritina < 12µg/L fue del 17,6 %. No se encontró relación entre el peso al nacer y la anemia [p=0,11. RR: 1,45 (0,6- 2,3)]. La prevalencia de anemia en el grupo de 12 a 23 meses fue del 39 % vs el 6,9 % en preescolares (χ2 p<0,05). Conclusiones: La prevalencia de anemia en lactantes de Asunción y Central constituye un problema de salud pública.

ABSTRACT Introduction: Children are the group most affected by anemia. In Paraguay there are no updated data on the prevalence of anemia in children under 5 years of age. Objectives: To determine the prevalence of anemia in previously healthy children aged 1 to 4 years who presented to health services clinics and nurseries in Asunción and the Central Department, Paraguay, during the year 2017. Materials and Methods: This was a prospective, cross-sectional, observational descriptive study. We used random, stratified sampling. Confidence level: 95% Sample error: 5%. Variables: age, sex, hemoglobin, hematometric indices, ferritin, C-reactive protein (CRP), albumin, z Weight / Age, z Weight / Height, z Height / Age, birth weight. Parametric and non-parametric measures, χ2, were analyzed. Anemia was defined by WHO criteria for the 1 to 5 year-old group: Hemoglobin Hb <11 g / dL and Mean Corpuscular Volume MCV <72 fL The Anthro Program v 3.2.2 and SPSS 16.0 were used. The study was approved by the Ethics Committee of the Institute of Tropical Medicine, and informed consent was obtained. Significance level <0.05. Results: 806 patients were recruited. Hgb, MCV and ferritin were determined in 706 patients. 327 (46.3%) were male. The mean Hgb was 11.9 ± 1.03 g / dL. Mean corpuscular volume 71.2 ± 26 fL. 83/706 patients with anemia (11.8%) were found, 44/83 (53%) were microcytic (MCV <72 fL). Negative CRP 640/706 (90.7%) patients. Average albuminemia was 4.5 ± 0.2 g / dL. The mean of z Weight / Age was 0.29 ± 1.33, z Weight / Height -0.38 ± 1.52 and the z Height / Age was 0.92 ± 1.64. Ferritin <12µg / L was 17.6%. No relationship was found between birth weight and anemia [p = 0.11. RR: 1.45 (0.6-2.3)]. The prevalence of anemia in the 12 to 23 month group was 39% vs 6.9% in preschool children (χ2 p <0.05). Conclusions: The prevalence of anemia in infants from Asunción and the Central Department constitutes a public health problem.

Resistencia a múltiples antibióticos en serovariedades de Salmonella aisladas de muestras clínicas y alimentos / Resistance to multiple antibiotics in serovarities of Salmonella isolated from clinical samples and foods

Salmonella enterica es un patógeno transmitido por alimentos y agente etiológico de brotes alimentarios de gran impacto en la salud humana. El aumento de la resistencia bacteriana constituye una amenaza a la salud pública, la aparición de cepas de Salmonella con resistencia a múltiples antimicrobianos (MDR) fue descrita en humanos, alimentos y animales para consumo; por ello se considera muy importante conocer la situación epidemiológica local. El objetivo de este trabajo fue generar información sobre los serotipos circulantes, resistencia a los antibióticos y presencia de resistencia simultánea a múltiples fármacos en Salmonella provenientes de muestras clínicas humanas y muestras de alimentos en el periodo desde 2017 a 2019. Fueron analizadas un total de 668 cepas de Salmonella aisladas en los años 2017, 2018 y 2019 a partir de muestras clínicas humanas y de alimentos, en el Laboratorio Central de Salud Pública y/o remitidas por Laboratorios de la Red de Enteropatógenos. Se observaron serotipos muy diversos con prevalencia del serovar Heidelberg en alimentos y Typhimurium en muestras de humanos. Se encontró que el 45,4% de las cepas fueron sensibles a todos los antibióticos (ATB), el 35,6% fueron resistentes de 1 a 6 ATB y el 19% con sensibilidad intermedia; observándose mayor resistencia a Tetraciclina, Ác. Nalidíxico, Ampicilina y Nitrofurantoína, en menor grado se evidenció resistencia a cefalosporinas (C3ªG) y a ciprofloxacina. El 16.9% de las cepas presentaron resistencia múltiple (3 o más antibióticos) con 37 fenotipos distintos. Las serovariedades que presentaron mayor resistencia a los antimicrobianos fueron Heidelberg, Schwarzengrund y Typhimurium

Salmonella enterica is a foodborne pathogen and etiological agent of food outbreaks with a great impact on human health. The increase in bacterial resistance constitutes a threat to public health. The appearance of Salmonella strains with resistance to multiple antimicrobials (MDR) has already been described in humans, food and animals for consumption; for this reason, it is considered very important to know the local epidemiological situation. The target of this work was to generate information on circulating serotypes, antibiotic resistance and the presence of simultaneous resistance to multiple drugs in Salmonella from human clinical samples and food samples in the period from 2017 to 2019. A total of 668 Salmonella strains isolated in the years 2017, 2018 and 2019 were analyzed from human and food clinical samples, at the Central Public Health Laboratory and / or sent by Laboratories of the Enteropathogens Network. Very diverse serotypes were observed with prevalence of Heidelberg serovar in food and Typhimurium in human samples .It was found that 45,4% of the strains were sensitive to all antibiotics (ATB), 35,6% were resistant from 1 to 6 ATB and 19% with intermediate sensitivity; observing greater resistance to Tetracycline, Ác. Nalidixic, Ampicillin and Nitrofurantoin, to a lesser degree resistance to cephalosporins (C3ªG) and ciprofloxacin was evidenced. The 16.9% the strains presented multiple resistance (3 or more antibiotics) with 37 different phenotypes. The serovars with the highest antimicrobial resistance were Heidelberg, Schwarzengrund and Typhimurium

Estudio epidemiológico de Haemophilus influenzae causante de enfermedad invasiva y no invasiva en Paraguay (1999-2017) / Epidemiologic study of Haemophilus influenzae causing invasive and non-invasive disease in Paraguay (1999-2017)

Introducción: Haemophilus influenzae (Hi) causa infecciones leves e invasivas graves, especialmente en niños menores de 5 años. El serotipo b (Hib) era muy frecuente antes de la introducción de la vacuna, que en Paraguay se introdujo en 2004. Métodos: Se estudiaron por métodos microbiológicos convencionales y técnicas moleculares 523 aislados de H. influenzae obtenidos desde 1999 a 2017 y remitidos al Laboratorio Nacional de Referencia de Paraguay. Resultados: El serotipo más frecuente fue el no-tipable (HiNT), en un 51,8% (271/523), seguido de Hib (43%; 225/523), Hia e Hif (1,5%; 8/523, respectivamente), Hic (1%; 5/523), Hie (0,8%; 4/523) y Hid (0,4%; 2/523). El 48,4% de las infecciones invasivas estaban causadas por HiNT y el 46,1% por Hib. El 88,6% de las cepas procedían de casos de meningitis, el 70,8% de sepsis y el 50,9% de neumonías en niños menores de 5 años. El 84% (181/217) de las cepas correspondían a enfermedades invasivas causadas por Hib en menores de 5 años, registrándose la mayor proporción entre 2001-2003. Los biotipos más prevalentes fueron el biotipo I (29%), biotipo II (12%), biotipo III (24%) y biotipo IV (13%). El 13% (68/523) de los aislados fueron resistentes a la ampicilina. Conclusión: Tras de la introducción de la vacuna frente a Hib en Paraguay, los casos de enfermedad invasiva por Hib disminuyeron en niños menores de 5 años y hubo un aumento de HiNT en los mayores de 5 años. Es necesaria una vigilancia continua para monitorizar la eficacia de la vacuna y desarrollar intervenciones preventivas.(AU)

Introduction: Haemophilus influenzae is a cause of mild and severe invasive infections, especially among children under 5 years old. Serotype b (Hib) was very frequent before the introduction of the vaccine, which was introduced in Paraguay in 2004. Methods: A total of 523 isolates of H. influenzae obtained from 1999 to 2017 and referred to the National Reference Laboratory in Paraguay were studied by conventional microbiological methods and molecular techniques. Results: The most frequent serotype was non-typeable (HiNT) (51.8%; 271/523), followed by Hib (43%; 225/523), Hia and Hif (1.5%; 8/523, respectively), Hic (1%; 5/523), Hie (0.8%; 4/523), and Hid (0.4%; 2/523). A total of 48.4% invasive infections were caused by HiNT, and 46.1% by Hib; 88.6% of isolates corresponded to meningitis, 70.8% to sepsis and 50.9% to pneumonia in children under 5 years. A total of 84% (181/217) of isolates corresponded to invasive infections caused by Hib in children under 5 years, with the highest proportion observed between 2001 and 2003. The most prevalent biotypes were biotype I (29%), biotype II (12%), biotype III (24%), and biotype IV (13%). Among the total of isolates, 13% (68/523) of isolates were resistant to ampicillin. Conclusion: After the introduction of the Hib vaccine in Paraguay, the number of invasive Hib cases decreased in children under 5 years old, although we observed an increase of HiNT in children over 5 years. Continuous surveillance is necessary in order to monitor the effectiveness of the vaccine and for the development of preventive interventions.(AU)

The direct effect of pneumococcal conjugate vaccines on invasive pneumococcal disease in children in the Latin American and Caribbean region (SIREVA 2006-17): a multicentre, retrospective observational study.

BACKGROUND: Streptococcus pneumoniae isolated from patients with invasive pneumococcal disease has been subjected to laboratory-based surveillance in Latin American and Caribbean countries since 1993. Invasive pneumococcal diseases remain a major cause of death and disability worldwide, particularly in children. We therefore aimed to assess the direct effect of pneumococcal conjugate vaccines (PCVs) on the distribution of pneumococcal serotypes causing invasive pneumococcal disease in children younger than 5 years before and after PCV introduction. METHODS: We did a multicentre, retrospective observational study in eight countries that had introduced PCV (ie, PCV countries) in the Latin American and Caribbean region: Argentina, Brazil, Chile, Colombia, Dominican Republic, Mexico, Paraguay, and Uruguay. Cuba and Venezuela were also included as non-PCV countries. Isolate data for Streptococcus pneumoniae were obtained between 2006 and 2017 from children younger than 5 years with an invasive pneumococcal disease from local laboratories or hospitals. Species' confirmation and capsular serotyping were done by the respective national reference laboratories. Databases from the Sistema Regional de Vacunas (SIREVA) participating countries were managed and cleaned in a unified database using Microsoft Excel 2016 and the program R (version 3.6.1). Analysis involved percentage change in vaccine serotypes between pre-PCV and post-PCV periods and the annual reporting rate of invasive pneumococcal diseases per 100 000 children younger than 5 years, which was used as a population reference to calculate percentage vaccine type reduction. FINDINGS: Between 2006 and 2017, 12 269 isolates of invasive pneumococcal disease were collected from children younger than 5 years in the ten Latin American and Caribbean countries. The ten serotypes included in ten-valent pneumococcal conjugate vaccine (PCV10) decreased significantly (p<0·0001) after any PCV introduction, except for the Dominican Republic. The percentage change for the ten vaccine serotypes in PCV10 countries was -91·6% in Brazil (530 [72·9%] of 727 before, 27 [6·1%] of 441 after); -85·0% in Chile (613 [72·6%] of 844 before, 44 [10·9%] of 404] after); -84·7% in Colombia (231 [63·1%] of 366 before, 34 [9·7%] of 352 after); and -73·8% in Paraguay (127 [77·0%] of 165 before, 22 [20·2%] of 109 after). In the 13-valent pneumococcal conjugate vaccine (PCV13) countries, the percentage change for the 13 vaccine serotypes was -59·6% in Argentina (853 [85·0%] of 1003 before, 149 [34·3%] of 434 after); -16·5% in the Dominican Republic (95 [80·5%] of 118 before, 39 [67·2%] of 58 after); -43·7% in Mexico (202 [73·2%] of 276 before, 63 [41·2%] of 153 after); and -45·9% in Uruguay (138 [80·7%] of 171 before, 38 [43·7%] of 87 after). Annual reporting rates showed a reduction from -82·5% (6·21 before vs 1·09 after per 100 000, 95% CI -61·6 to -92·0) to -94·7% (1·15 vs 0·06 per 100 000, -89·7 to -97·3) for PCV10 countries, and -58·8% (2·98 vs 1·23 per 100 000, -21·4 to -78·4) to -82·9% (7·80 vs 1·33 per 100 000, -76·9 to -87·4) for PCV13 countries. An increase in the amount of non-vaccine types was observed in the eight countries after PCV introduction together with an increase in their percentage in relation to total invasive strains in the post-PCV period. INTERPRETATION: SIREVA laboratory surveillance was able to confirm the effect of PCV vaccine on serotypes causing invasive pneumococcal disease in the eight PCV countries. Improved monitoring of the effect and trends in vaccine type as well as in non-vaccine type isolates is needed, as this information will be relevant for future decisions associated with new PCVs. FUNDING: None. TRANSLATIONS: For the Portuguese and Spanish translations of the abstract see Supplementary Materials section.

Epidemiologic study of Haemophilus influenzae causing invasive and non-invasive disease in Paraguay (1999-2017). / Estudio epidemiológico de Haemophilus influenzae causante de enfermedad invasiva y no invasiva en Paraguay (1999-2017).

INTRODUCTION: Haemophilus influenzae is a cause of mild and severe invasive infections, especially among children under 5 years old. Serotype b (Hib) was very frequent before the introduction of the vaccine, which was introduced in Paraguay in 2004. METHODS: A total of 523 isolates of H. influenzae obtained from 1999 to 2017 and referred to the National Reference Laboratory in Paraguay were studied by conventional microbiological methods and molecular techniques. RESULTS: The most frequent serotype was non-typeable (HiNT) (51.8%; 271/523), followed by Hib (43%; 225/523), Hia and Hif (1.5%; 8/523, respectively), Hic (1%; 5/523), Hie (0.8%; 4/523), and Hid (0.4%; 2/523). A total of 48.4% invasive infections were caused by HiNT, and 46.1% by Hib; 88.6% of isolates corresponded to meningitis, 70.8% to sepsis and 50.9% to pneumonia in children under 5 years. A total of 84% (181/217) of isolates corresponded to invasive infections caused by Hib in children under 5 years, with the highest proportion observed between 2001 and 2003. The most prevalent biotypes were biotype I (29%), biotype II (12%), biotype III (24%), and biotype IV (13%). Among the total of isolates, 13% (68/523) of isolates were resistant to ampicillin. CONCLUSION: After the introduction of the Hib vaccine in Paraguay, the number of invasive Hib cases decreased in children under 5 years old, although we observed an increase of HiNT in children over 5 years. Continuous surveillance is necessary in order to monitor the effectiveness of the vaccine and for the development of preventive interventions.

[Identification and susceptibility profile of Candida species isolated from hemocultures in hospitals in ParaguayIdentificação e perfil de sensibilidade de Candida spp. isoladas de hemoculturas em hospitais no Paraguai]. / Identificación y perfil de sensibilidad de Candida spp. aisladas de hemocultivos en hospitales de Paraguay.

OBJECTIVE: To report the species identified in candidemia isolated in hospitals in Paraguay, their distribution by age groups, and their susceptibility to fluconazole, voriconazole, and amphotericin B. METHODS: Retrospective study of candidemia reported to the Central Health Public Laboratory by seven hospitals between 2010 and 2018. Identification and susceptibility testing were performed using the automated Vitek 2® system. RESULTS: 520 cases of candidiasis were reported. The prevalent species were Candida albicans (34.4%), C. parapsilosis (30.4%), C. tropical (25.4%), C. glabrata (4.8%), and C. krusei (2.1%). Less frequent species were: C. lusitaniae (1.2%), C. guilliermondii (1%), C. famata (0.3%), C. rugous (0.2%), and C. kefyr (0.2%). Candidiasis was most prevalent in the elderly (48.5%) and adults (29.9%). C. parapsilosis was most frequent in newborns and infants, and C. tropical in pediatric patients; 2.8% and 0.6% of C. albicans and 4.4% and 2.5% of C. parapsilosis were resistant, respectively, to fluconazole and voriconazole; 8% of C. glabrata were resistant to fluconazole and two isolations showed a minimum inhibitory concentration for voriconazole greater than 0.25 mg/L. CONCLUSIONS: This is the first report on candidemias in hospitals of Paraguay. Together with other studies, it will improve knowledge about this infection in the country.

OBJETIVO: Relatar as espécies identificadas em candidemias isoladas em hospitais do país, apresentar a sua distribuição por faixa etária e determinar a sua sensibilidade ao fluconazol, voriconazol e anfotericina B. MÉTODOS: Estudo retrospectivo de candidemias notificadas por sete hospitais ao Laboratório Central de Saúde Pública no período de 2010 a 2018. A identificação e o antifungigrama foram realizados pelo sistema automatizado Vitek®2. RESULTADOS: Foram notificados 520 casos de candidemia. As espécies predominantes foram Candida albicans (34,4%), C. parapsilosis (30,4%), C. tropicalis (25,4%), C. glabrata (4,8%) e C. krusei (2,1%). Outras espécies menos frequentes foram: C. lusitaniae (1,2%), C. guilliermondii (1%), C. famata (0,3%), C. rugosa (0,2%) e C. kefyr (0,2%). As candidemias em pacientes idosos (48,5%) e adultos (29,9%) foram as mais prevalentes. C. parapsilosis foi a espécie mais frequente em recém-nascidos e lactentes, e C. tropicalis predominou em pacientes pediátricos. Ao todo, 2,8% e 0,6% dos casos de C. albicans e 4,4% e 2,5% dos de C. parapsilosis foram resistentes a fluconazol e voriconazol, respectivamente. Além disso, 8% dos casos de C. glabrata foram resistentes ao fluconazol, e duas amostras isoladas apresentaram uma concentração inibitória mínima para voriconazol acima de 0,25 mg/L. CONCLUSÕES: Este é o primeiro estudo sobre candidemias em hospitais do Paraguai, o que, juntamente com outros estudos, permitirá conhecer melhor esta infecção no país.

Identificación y perfil de sensibilidad de Candida spp. aisladas de hemocultivos en hospitales de Paraguay

[RESUMEN]. Objetivo. Reportar las especies identificadas en candidemias aisladas en hospitales del país, su distribución según los grupos etarios y determinar la sensibilidad a fluconazol, voriconazol y anfotericina B. Métodos. Estudio retrospectivo de candidemias reportados por siete hospitales al Laboratorio Central de Salud Pública en el período 2010 - 2018. La identificación y el antifungigrama fueron realizados en el sistema automatizado Vitek®2. Resultados. Se informaron 520 casos de candidemias. Las especies prevalentes fueron Candida albicans (34,4%), C. parapsilosis (30,4%), C. tropicalis (25,4%), C. glabrata (4,8%), C. krusei (2,1%). Otras menos frecuentes fueron: C. lusitaniae (1,2%), C. guilliermondii (1%), C. famata (0,3%), C. rugosa (0,2%) y C. kefyr (0,2%). Las candidemias en ancianos (48,5%) y adultos (29,9%) fueron las más prevalentes. C. parapsilosis fue más frecuente en recién nacidos y lactantes y C. tropicalis en pacientes pediátricos. El 2,8 % y 0,6% de C. albicans y el 4,4% y 2,5% de C. parapsilosis fueron resistentes a fluconazol y voriconazol, respectivamente. El 8% de C. glabrata fue resistente a fluconazol y dos aislamientos presentaron una concentración inhibitoria mínima para voriconazol mayor que 0,25 mg/L. Conclusiones. Este es el primer reporte de candidemias en hospitales de Paraguay que, junto a otros estudios, permitirá un mejor conocimiento de esta infección en el país.

[ABSTRACT]. Objective. To report the species identified in candidemia isolated in hospitals in Paraguay, their distribution by age groups, and their susceptibility to fluconazole, voriconazole, and amphotericin B. Methods. Retrospective study of candidemia reported to the Central Health Public Laboratory by seven hospitals between 2010 and 2018. Identification and susceptibility testing were performed using the automated Vitek 2® system. Results. 520 cases of candidiasis were reported. The prevalent species were Candida albicans (34.4%), C. parapsilosis (30.4%), C. tropical (25.4%), C. glabrata (4.8%), and C. krusei (2.1%). Less frequent species were: C. lusitaniae (1.2%), C. guilliermondii (1%), C. famata (0.3%), C. rugous (0.2%), and C. kefyr (0.2%). Candidiasis was most prevalent in the elderly (48.5%) and adults (29.9%). C. parapsilosis was most frequent in newborns and infants, and C. tropical in pediatric patients; 2.8% and 0.6% of C. albicans and 4.4% and 2.5% of C. parapsilosis were resistant, respectively, to fluconazole and voriconazole; 8% of C. glabrata were resistant to fluconazole and two isolations showed a minimum inhibitory concentration for voriconazole greater than 0.25 mg/L. Conclusions. This is the first report on candidemias in hospitals of Paraguay. Together with other studies, it will improve knowledge about this infection in the country.

[RESUMO]. Objetivo. Relatar as espécies identificadas em candidemias isoladas em hospitais do país, apresentar a sua distribuição por faixa etária e determinar a sua sensibilidade ao fluconazol, voriconazol e anfotericina B. Métodos. Estudo retrospectivo de candidemias notificadas por sete hospitais ao Laboratório Central de Saúde Pública no período de 2010 a 2018. A identificação e o antifungigrama foram realizados pelo sistema automatizado Vitek®2. Resultados. Foram notificados 520 casos de candidemia. As espécies predominantes foram Candida albicans (34,4%), C. parapsilosis (30,4%), C. tropicalis (25,4%), C. glabrata (4,8%) e C. krusei (2,1%). Outras espécies menos frequentes foram: C. lusitaniae (1,2%), C. guilliermondii (1%), C. famata (0,3%), C. rugosa (0,2%) e C. kefyr (0,2%). As candidemias em pacientes idosos (48,5%) e adultos (29,9%) foram as mais prevalentes. C. parapsilosis foi a espécie mais frequente em recém-nascidos e lactentes, e C. tropicalis predominou em pacientes pediátricos. Ao todo, 2,8% e 0,6% dos casos de C. albicans e 4,4% e 2,5% dos de C. parapsilosis foram resistentes a fluconazol e voriconazol, respectivamente. Além disso, 8% dos casos de C. glabrata foram resistentes ao fluconazol, e duas amostras isoladas apresentaram uma concentração inibitória mínima para voriconazol acima de 0,25 mg/L. Conclusões. Este é o primeiro estudo sobre candidemias em hospitais do Paraguai, o que, juntamente com outros estudos, permitirá conhecer melhor esta infecção no país.

Frecuencia de Streptococcus pneumoniae aislados de enfermedad invasiva en Paraguay, serotipos y perfil de sensibilidad (2010-2018) / Frequency of Streptococcus pneumoniae isolated from invasive disease in Paraguay, serotypes and sensitivity profile (2010-2018)

Streptococcus pneumoniae sigue siendo una de las causas más importantes de morbilidad y mortalidad en niños y adultos alrededor del mundo. El objetivo del estudio fue describir la frecuencia de aislamiento de S. pneumoniae en enfermedad invasiva, distribución de serotipos y sensibilidad antimicrobiana en Paraguay (2010-2018). Se estudiaron 793 cepas de S. pneumoniae aisladas de pacientes de todas las edades con enfermedad invasiva en Paraguay, provenientes de los diferentes centros centinelas y colaboradores en el marco de la vigilancia de meningitis y neumonías, durante el periodo 2010-2018. La frecuencia general según diagnóstico resultó 74.9% de neumonías (n=594), 18.4% de meningitis (n=146) y 6.7% de sepsis (n=53). El serotipo 14 fue más frecuente con 174 aislamientos (22.0%), seguido del serotipo 19A con 84 aislamientos (10.6%), el serotipo 3 con 66 aislamientos (8.3%) y el 6A con 37 aislamientos (4.7%). En meningitis se registró una frecuencia general de resistencia a penicilina del 32,2% y de ceftriaxona del 1,4%. En los casos de no meningitis la resistencia a penicilina fue del 0,8% y ceftriaxona del 0,3%. Los resultados de serotipos y sensibilidad antimicrobiana proporcionarán información necesaria para la implementación de estrategias de prevención y tratamiento de la enfermedad neumocócica en nuestro país, por lo que es necesaria una vigilancia continua para evaluar la carga de enfermedad, los serotipos circulantes y el aumento de la resistencia a los antibióticos

Streptococcus pneumoniae remains one of the most important causes of morbidity and mortality in children and adults worldwide. The objective of the study was to describe the frequency of isolation of S. pneumoniae in invasive disease, serotype distribution and antimicrobial susceptibility in Paraguay (2010-2018). We studied 793 strains of S. pneumoniae isolated from patients of all ages with invasive disease in Paraguay, from different sentinel centers and collaborators in the framework of meningitis and pneumonia surveillance during the period 2010-2018. The general frequency according to diagnosis was 74.9% of pneumonia (n = 594), 18.4% of meningitis (n = 146) and 6.7% of sepsis (n = 53). Serotype 14 was more frequent with 174 isolates (22.0%), followed by serotype 19A with 84 isolates (10.6%), serotype 3 with 66 isolates (8.3%) and 6A with 37 isolates (4.70%). In meningitis, there was a general frequency of penicillin resistance of 32.2% and ceftriaxone of 1.4%. In cases of non-meningitis, penicillin resistance was 0.8% and ceftriaxone 0.3%. The results of serotypes and antimicrobial sensitivity will provide necessary information for the implementation of prevention strategies and treatment of pneumococcal disease in our country, therefore it is necessary to continue monitoring in order to assess the burden of the disease, circulating serotypes and increased antibiotic resistance

Prácticas sexuales y anticoncepción en puérperas en un Hospital de tercer nivel de atención de Paraguay, 2017 / Sexual practices and contraception in puerperal women in a third level care hospital in Paraguay, 2017

Introducción: El hecho de reiniciar la vida sexual después del parto, constituye una fuente de tensión y/o estrés emocional en algunas mujeres, que pueden llegar a ocasionar conflictos a largo plazo en la vida de pareja, en gran medida influenciados, por los cambios físicos y emocionales que se producen. Objetivo: Describir las prácticas sexuales y anticoncepción de las puérperas de un hospital de tercer nivel de atención de Paraguay durante el 2017. Metodología: Estudio descriptivo, de corte transversal, con muestreo probabilístico de casos consecutivos, que tuvo como muestra 84 mujeres del Hospital Regional de Coronel Oviedo, 2017. Resultados: Fueron incluidas 84 mujeres, el porcentaje que reanudó la práctica sexual coital en el posparto fue de 42.86%(n=36), siendo el tiempo promedio de 8 ± 5.68 semanas; el 64.29%(n=54) admitió haber realizado la práctica sexual no coital, en un tiempo de inicio de 2 ± 2.96 semanas. Los principales motivos de la práctica sexual coital fueron por deseo y confort personal 47%(n=17) y petición de la pareja 33%(n=12), las razones por las cuales no reiniciaron fueron por miedo a sentir dolor 30%(n=25) y por temor a un nuevo embarazo 20%(n=20). De las mujeres que realizaron la práctica sexual no coital el 87%(n=47) practicaba solo besos y caricias con intención erótica. La mayoría utilizó como método anticonceptivo en la reanudación el inyectable hormonal trimestral 38%(n=14). El 44.05%(n=37) utilizó como método anticonceptivo moderno el inyectable hormonal trimestral. Conclusión: Las prácticas sexuales y anticoncepción de las puérperas del Hospital Regional de Coronel Oviedo durante el mes de octubre del año 2017 fueron: menos de la mitad de las mujeres reanudó la práctica sexual coital en un tiempo promedio de 8 semanas, por deseo y confort personal; mientras el reinició de las prácticas sexuales no coitales fue mayor que la mitad, en un tiempo de 2 semanas. El principal método anticonceptivo moderno utilizado fue el inyectable hormonal trimestral. Palabras clave: Periodo Posparto, Anticonceptivos, Conducta Sexual.

Introduction: The fact of restarting the sexual life after childbirth constitutes a source of tension and / or emotional stress in some women, which can lead to long-term conflicts in the life of a couple, largely influenced by physical changes and Emotional that occur. Objective: Describe the sexual practices and contraception of the puerperal women of a third level hospital in Paraguay during 2017. Methodology: Descriptive, cross-sectional study, with probabilistic sampling of consecutive cases, which showed 84 women from the Regional Hospital of Coronel Oviedo, 2017. Results: 84 women were included, the percentage that resumed sexual intercourse was 42.86% (n = 36), the average time being 8 ± 5.68 weeks; 64.29% (n = 54) admitted to having performed non-coital sexual practice, at a time of onset of 2 ± 2.96 weeks. The main reasons for sexual intercourse were due to desire and personal comfort 47% (n = 17) and request of the couple 33% (n = 12), the reasons why they did not restart were for fear of feeling pain 30% (n= 25) and for fear of a new pregnancy 20% (n = 20). Of the women who performed non-coital sexual practice, 87% (n = 47) practiced only kisses and caresses with erotic intent. The majority used the 38% quarterly hormonal injection as a contraceptive method for resumption (n = 14). 44.05% (n = 37) used the quarterly hormonal injection as a modern contraceptive method. Conclusion: The sexual practices and contraception of the puerperal women of the Regional Hospital of Coronel Oviedo during the month of October 2017 were: less than half of the women resumed sexual intercourse in an average time of 8 weeks, for desire and comfort personal; while the restart of non-coital sexual practices was greater than half, in a time of 2 weeks. The main modern contraceptive method used was the quarterly hormonal injection. Keywords: Postpartum Period, Contraceptive Agents, Sexual Behavior.

Carriage of Neisseria meningitidis and other Neisseria species among children and young adults in Paraguay.

Introduction. Colonization by Neisseria meningitidis is the pre-requisite for the development of disease. We present the findings of a cross-sectional investigation onto the oropharyngeal carriage of N. meningitidis and Neisseria species in the population aged 3 to 21 in Paraguay.Aim. Carriage prevalence by age groups, risk factors associated with carriage, and phenotypic and genotypic characteristics of strains are described.Methodology. We collected 2011 oropharyngeal swabs from consenting participants aged 3-21 years. Infants were recruited at immunization clinics, and older children and young adults were identified at schools and universities. A single oropharyngeal swab was collected and processed for the identification and isolation of Neisseria. Additionally, participants, or their legal guardian if these were minors, were requested to fill a standardized questionnaire.Results. N. meningitidis was isolated in 42/2011 (2.1 %) participants, while other Neisseria spp. were identified in 306/2011 (15.2 %) subjects: N. cinerea and N. lactamica were identified in 39/2011 (1.9 %) and 43/2011 (2.2 %), respectively. Meningococcal strains belonged to ten different clonal complexes, of which six are associated with invasive disease (ST-32/ET5 complex, ST-11/ET37 complex, ST-103 complex, ST-167 complex, ST-35 complex and ST-41/44 complex/lineage 3).Conclusion. Prevalence of N. meningitidis carriage was low compared to that reported from other settings, however, the overall carriage of Neisseria spp. (including N. meningitidis) was comparable to meningococcal carriage prevalence reported in the literature. This study is the first of its kind conducted in Paraguay, and one of the few known in the Southern Cone of Latin America.