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Influenza is common in healthy children and adolescents and is associated with a high rate of hospitalization in this group, especially for those <5 years. Although the WHO has recommended vaccination in children under 5 years of age since 2012, it is really implemented in few countries today. The aim of this paper was to review the available evidence on the efficacy/effectiveness of influenza vaccination in healthy children <18 years of age through a non-systematic search of studies conducted between 2010 and 2020. Despite the high variability in results due to differences in design, vaccine type and season included in the 41 selected studies, statistically significant studies show efficacy values for the influenza vaccine of between 25.6% and 74.2%, and effectiveness from 26% to 78.8%. Although a systematic review would be necessary to corroborate the evidence, this review suggests that paediatric vaccination is generally an effective measure for preventing influenza in healthy children in line with international organisms' recommendations.
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Vacunas contra la Influenza , Gripe Humana , Adolescente , Niño , Preescolar , Humanos , Hospitalización , Gripe Humana/prevención & control , Estaciones del Año , VacunaciónRESUMEN
ASBTRACT: BACKGROUND: Electronic vaccine registries are not yet widely established. There is a need to real-time monitor influenza vaccine coverage, which may raise awareness to risk groups and professionals, and eventually allow to adopt tailored measures during the vaccination campaign. To evaluate the utility of the "Gripómetro", a demographic study designed to monitor national and regional influenza vaccine coverage on a weekly basis in Spain. METHODS: Quantitative study based on surveys of the Spanish population between 18-80 years and a sample of primary care doctors and nurses randomly selected. Pre-proportional fixation has been established by Autonomous Communities and age group to guarantee the representativeness of all the autonomies. RESULTS: Interviews were conducted in 3400 households of general population and 807 respondents among health care professionals. We found that the results of influenza vaccination coverage in the population ≥ 65 years obtained by the Gripómetro for 2018-2019 season were mostly comparable with the official data presented by the Ministry of Health after the end of the vaccination campaign. CONCLUSIONS: The Gripómetro is a robust research method that provides real-time data and trends for influenza vaccine coverage along with other useful information related to vaccination such as intention to vaccinate, motivation and barriers to vaccination.
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Vacunas contra la Influenza , Gripe Humana , Personal de Salud , Humanos , Gripe Humana/prevención & control , Estaciones del Año , Vacunación , Cobertura de VacunaciónRESUMEN
Influenza B is accountable for an important burden during flu epidemics, causing special impact in children and the elderly. Vaccination is the best approach to address influenza infections. However, one of the main problems of this virus is that two different lineages circulate together, Victoria and Yamagata; and trivalent vaccines, that only contain one of these lineages, are still in use. For that reason, if during an epidemic, the lineage not included in the vaccine predominates, a mismatch would occur, and the vaccine effectiveness will be very poor. In this work, we evaluated the cross-protection given by the trivalent Influenza vaccine and compared serological profiles based on age, sex, and the type of vaccine used. We performed a retrospective analysis of serum samples obtained before and after seasonal influenza vaccination during 20 seasons (1998-2018). The results showed that heterotypic reactivity between both influenza B lineages is common, but always lower than the homologous response. Age is a relevant factor for this cross-reactivity between both lineages, while the sex and the type of vaccine not. Vaccination with trivalent influenza vaccines elicits cross-reactive antibodies against both lineages, however, this response might not be enough to provide an appropriate serological protection in case of mismatch.
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BACKGROUND: Influenza vaccines are the main tool to prevent morbidity and mortality of the disease; however, egg adaptations associated with the choice of the manufacturing process may reduce their effectiveness. This study aimed to estimate the impact of egg adaptations and antigenic drift on the effectiveness of trivalent (TIV) and quadrivalent (QIV) influenza vaccines. METHODS: Nine experts in influenza virology were recruited into a Delphi-style exercise. In the first round, the experts were asked to answer questions on the impact of antigenic drift and egg adaptations on vaccine match (VM) and influenza vaccine effectiveness (IVE). In the second round, the experts were presented with the data from a systematic literature review on the same subject and aggregated experts' responses to round one questions. The experts were asked to review and confirm or amend their responses before the final summary statistics were calculated. RESULTS: The experts estimated that, across Europe, the egg adaptations reduce, on average, VM to circulating viruses by 7-21% and reduce IVE by 4-16%. According to the experts, antigenic drift results in a similar impact on VM (8-24%) and IVE (5-20%). The highest reduction in IVE was estimated for the influenza virus A(H3N2) subtype for the under 65 age group. When asked about the frequency of the phenomena, the experts indicated that, on average, between the 2014 and 19 seasons, egg adaptation and antigenic drift were significant enough to impact IVE that occurred in two and three out of five seasons, respectively. They also agreed that this pattern is likely to reoccur in future seasons. CONCLUSIONS: Expert estimates suggest there is a potential for 9% on average (weighted average of "All strains" over three age groups adjusted by population size) and up to a 16% increase in IVE (against A(H3N2), the <65 age group) if egg adaptations that arise when employing the traditional egg-based manufacturing process are avoided.
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Background: Sex differences in immune responses are well known. However, the humoral response in males and females in the case of influenza vaccination is yet to be characterized since studies have shown uneven results. Methods: A retrospective study was conducted in 2,243 individuals (46.9% males) divided by age (15-64 and ≥65 years old). A serological analysis was performed by hemagglutination inhibition assay (HI) just before and 28 days after annual vaccination against seasonal influenza viruses in people vaccinated during the 2006-2018 seasons. A comparison of the humoral responses against influenza A and B viruses contained in the vaccine, between male and female individuals in young adults and elderly was conducted. Results: Significative higher humoral response against classical influenza A (H1N1), A(H1N1)pdm09 subtype and B/Victoria lineage in terms of seroconversion rate were found in elderly women. No significant differences were found in the case of A(H3N2) subtype. Conclusions: Elderly women seem to display a greater humoral response against classical A(H1N1), pandemic A(H1N1)pmd09 and B/Victoria lineage than elderly men. Sex dimorphism does not affect young adults.
Asunto(s)
Virus de la Influenza A/inmunología , Virus de la Influenza B/inmunología , Vacunas contra la Influenza/inmunología , Gripe Humana/epidemiología , Gripe Humana/prevención & control , Adolescente , Adulto , Anciano , Anticuerpos Antivirales/inmunología , Femenino , Pruebas de Inhibición de Hemaglutinación , Humanos , Virus de la Influenza A/clasificación , Vacunas contra la Influenza/administración & dosificación , Masculino , Persona de Mediana Edad , Evaluación de Resultado en la Atención de Salud , Estudios Retrospectivos , Estaciones del Año , Factores Sexuales , Vacunación , Adulto JovenRESUMEN
The Spanish Society of Pneumonology and Thoracic Surgery (SEPAR) has elaborated this document of recommendations for COVID-19 vaccination in patients with respiratory diseases aimed to help healthcare personnel make decisions about how to act in case of COVID-19 vaccination in these patients.The recommendations have been developed by a group of experts in this field after reviewing the materials published up to March 7, 2021, the information provided by different scientific societies, drug agencies and the strategies of the governmental bodies up to this date.We can conclude that COVID-19 vaccines are not only safe and effective, but also prior in vulnerable patients with chronic respiratory diseases. In addition, an active involvement of healthcare professionals, who manage these diseases, in the vaccination strategy is the key to achieve good adherence and high vaccination coverage.
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BACKGROUND: vaccination is the best approach to prevent influenza infections so far. Serological studies on the effect of different vaccine types are important to address vaccination campaigns and protect our population. In our study, we compared the serological response against influenza A subtypes using the non-adjuvanted influenza vaccine (NAIV) in adults and the elderly and the adjuvanted influenza vaccine (AIV) in the elderly. METHODS: We performed a retrospective analysis by hemagglutination inhibition assay (HI) of serum samples right before and 28 days after seasonal influenza vaccination during the 1996-2017 seasons. CONCLUSIONS: The AIV presents better performance against the A(H3N2) subtype in the elderly whereas the NAIV induces a better response against A(H1N1)pdm09 in the same group.
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INTRODUCTION: The objective of this study was to compare the prevalence of human papilloma virus (HPV) in Spanish and foreign women in a cervical cancer screening programme of Castilla y León and foreign women living in the community who participated in the programme. METHODS: This was an observational, descriptive, cross - sectional, retrospective study of period prevalence. The sample consisted of all the women included in the cervical cancer prevention programme of the Regional Ministry of Health of the Junta de Castilla y León who were screened for cervical cancer during the period from 2012 to 2014, aged between 25 and 64 years of age. RESULTS: Of the 190,203 cervical smear samples collected, 10.2% were foreign (n=19,329). The prevalence of HPV in the foreign women was 23.51%, significantly higher than in the Spanish women (P<.001). The presence of morphological and microbiological changes in the foreign women was also greater. CONCLUSIONS: This study makes an important contribution, since it comprised a voluminous population screening sample. The prevalence of HPV in the foreign women was significantly higher than in the women born in Spain. It is important to continue studying this type of population, who are difficult to recruit for cultural reasons.
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Papillomaviridae , Infecciones por Papillomavirus/epidemiología , Neoplasias del Cuello Uterino/epidemiología , Neoplasias del Cuello Uterino/virología , Adulto , Estudios Transversales , Detección Precoz del Cáncer , Emigrantes e Inmigrantes , Femenino , Humanos , Persona de Mediana Edad , Papillomaviridae/aislamiento & purificación , Infecciones por Papillomavirus/diagnóstico , Prevalencia , Estudios Retrospectivos , España/epidemiología , Neoplasias del Cuello Uterino/diagnóstico , Frotis VaginalRESUMEN
In 2018 there are still microbiology laboratories that do not subtype or detect influenza viruses, one of the main agents of community-acquired pneumonia. A major challenge is to introduce multiplex-type technologies into most clinical virological diagnostic laboratories, increasing the feasibility of timely etiological diagnosis of influenza and other respiratory viruses whenever required and thus limiting antibiotic treatments. Other diagnostic tools such as markers of severity and the detection of resistance are pending challenges to complete and expand. Viral culture, an essential tool in the epidemiological surveillance of viruses, has been relegated by more sensitive and affordable molecular techniques. Sequencing of the influenza virus together with the antigenic characterisation and detection techniques of antibodies against hemagglutinin and neuraminidase will, in future, be used in tandem with other techniques to detect antibodies against other structural proteins, helping to elucidate the complicated epidemiology of these viruses and the production of new vaccines and their evaluation. Supplement information: This article is part of a supplement entitled «SEIMC External Quality Control Programme. Year 2016¼, which is sponsored by Roche, Vircell Microbiologists, Abbott Molecular and Francisco Soria Melguizo, S.A. © 2019 Elsevier España, S.L.U. and Sociedad Española de Enfermedades Infecciosasy Microbiología Clínica. All rights reserved.
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Gripe Humana/diagnóstico , Monitoreo Epidemiológico , Humanos , Gripe Humana/epidemiología , Virología/métodosRESUMEN
INTRODUCCIÓN: El objetivo propuesto ha sido comparar la prevalencia de virus de papiloma Humano (VPH) en las mujeres españolas y extranjeras pertenecientes al programa de cribado de cáncer de cérvix de Castilla y León, y las mujeres extranjeras residentes en la comunidad que han participado en el programa. MÉTODOS: Se trata de un estudio observacional descriptivo transversal, retrospectivo, de prevalencia de periodo. La muestra consta de todas las mujeres incluidas en el programa de prevención de cáncer de cérvix de la Consejería de Sanidad de la Junta de Castilla y León a quienes se realizó una prueba de cribado de cáncer de cérvix, durante el periodo de 2012 a 2014, con edades comprendidas entre los 25 y los 64 años de edad. RESULTADOS: De las 190.203 muestras de frotis de cérvix recopiladas el 10,2% fueron extranjeras (n = 19.329). La prevalencia de VPH en mujeres extranjeras fue del 23,51%, significativamente mayor que en las mujeres españolas (p < 0,001). También resultó ser mayor la presencia de alteraciones morfológicas y microbiológicas en las mujeres extranjeras. CONCLUSIONES: El presente estudio realiza una importante aportación, al tratarse de una voluminosa muestra proveniente de un screening de tipo poblacional. Evidenciando, significativamente, la mayor prevalencia de VPH en mujeres extranjeras que en las mujeres nacidas en España. Siendo importante continuar estudiando este tipo de población que por motivos culturales no es fácil su captación
INTRODUCTION: The objective of this study was to compare the prevalence of human papilloma virus (HPV) in Spanish and foreign women in a cervical cancer screening programme of Castilla y León and foreign women living in the community who participated in the programme. METHODS: This was an observational, descriptive, cross - sectional, retrospective study of period prevalence. The sample consisted of all the women included in the cervical cancer prevention programme of the Regional Ministry of Health of the Junta de Castilla y León who were screened for cervical cancer during the period from 2012 to 2014, aged between 25 and 64 years of age. RESULTS: Of the 190,203 cervical smear samples collected, 10.2% were foreign (n = 19,329). The prevalence of HPV in the foreign women was 23.51%, significantly higher than in the Spanish women (P < .001). The presence of morphological and microbiological changes in the foreign women was also greater. CONCLUSIONS: This study makes an important contribution, since it comprised a voluminous population screening sample. The prevalence of HPV in the foreign women was significantly higher than in the women born in Spain. It is important to continue studying this type of population, who are difficult to recruit for cultural reasons
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Humanos , Femenino , Adulto , Persona de Mediana Edad , Infecciones por Papillomavirus/epidemiología , Papillomaviridae/aislamiento & purificación , Tamizaje Masivo/métodos , Neoplasias del Cuello Uterino/epidemiología , Infecciones por Papillomavirus/microbiología , España/epidemiología , Detección Precoz del Cáncer , Estudios Transversales , Estudios Retrospectivos , Emigrantes e Inmigrantes/estadística & datos numéricosRESUMEN
En el año 2018, todavía hay laboratorios de microbiología que no subtipan o no detectan virus de la gripe, uno de los principales agentes de la neumonía adquirida en la comunidad. Uno de los retos principales es acercar tecnologías de tipo multiplex a la mayor parte de laboratorios de diagnóstico virológico clínico, lo que facilita que el diagnóstico etiológico de la gripe y otros virus respiratorios sea factible en tiempo y forma en todos aquellos casos clínicos que lo precisen, y limita así tratamientos antibióticos. Otras herramientas diagnósticas, como los marcadores asociados con gravedad y la detección de resistencias, son retos pendientes de completar y expandir. El cultivo del virus, herramienta imprescindible en la vigilancia epidemiológica del virus, ha quedado relegado por las técnicas moleculares más sensibles y asequibles. La secuenciación del virus gripal junto con la caracterización antigénica y las técnicas de detección de anticuerpos frente a la hemaglutinina y la neuraminidasa acompañarán en un futuro a otras técnicas para detectar anticuerpos frente a otras proteínas estructurales, lo que ayudará a entender la compleja epidemiología de estos virus y la producción de nuevas vacunas y su evaluación. Información sobre el suplemento: este artí-culo forma parte del suplemento titulado "Programa de Control de Calidad Externo SEIMC. Año 2016", que ha sido patrocinado por Roche, Vircell Microbiologists, Abbott Molecular y Francisco Soria Melguizo, S.A
In 2018 there are still microbiology laboratories that do not subtype or detect influenza viruses, one of the main agents of community-acquired pneumonia. A major challenge is to introduce multiplex-type technologies into most clinical virological diagnostic laboratories, increasing the feasibility of timely etiological diagnosis of influenza and other respiratory viruses whenever required and thus limiting antibiotic treatments. Other diagnostic tools such as markers of severity and the detection of resistance are pending challenges to complete and expand. Viral culture, an essential tool in the epidemiological surveillance of viruses, has been relegated by more sensitive and affordable molecular techniques. Sequencing of the influenza virus together with the antigenic characterisation and detection techniques of antibodies against hemagglutinin and neuraminidase will, in future, be used in tandem with other techniques to detect antibodies against other structural proteins, helping to elucidate the complicated epidemiology of these viruses and the production of new vaccines and their evaluation. Supplement information: This article is part of a supplement entitled "SEIMC External Quality Control Programme. Year 2016", which is sponsored by Roche, Vircell Microbiologists, Abbott Molecular and Francisco Soria Melguizo, S.A
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Humanos , Gripe Humana/diagnóstico , Gripe Humana/epidemiología , Monitoreo Epidemiológico , Gripe Humana/virología , Carga Viral/métodosRESUMEN
No disponible
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Humanos , Técnicas de Diagnóstico Molecular/tendencias , Enfermedades Transmisibles/genética , Infecciones/genética , Pruebas Genéticas/tendencias , Predisposición Genética a la Enfermedad , Factores de Riesgo , Genoma Microbiano/genética , Estudios de Asociación Genética/métodosAsunto(s)
Enfermedades Transmisibles/genética , Predisposición Genética a la Enfermedad , Enfermedades Transmisibles/diagnóstico , Enfermedades Transmisibles/terapia , Progresión de la Enfermedad , Marcadores Genéticos , Variación Genética , Estudio de Asociación del Genoma Completo , Humanos , PronósticoRESUMEN
INTRODUCTION: Matrix assisted laser desorption/ionization-time of flight (MALDI-TOF) mass spectrometry is widely established as a technique in clinical microbiology laboratories for the identification of microorganisms. Using this technique, it is also possible to obtain the identification of microorganisms from untreated urine samples. METHODS: In this study, a differential centrifugation protocol and a criterion for validation of the results in order to achieve microbial identification from untreated urine samples are proposed. Additionally, the sensitivity of the analytical procedure in monobacterial urine samples has beenevaluated. RESULTS: A 90% sensitivity (confidence interval of 81.96%-94.84%) was obtained in urine samples with bacterial counts of ≥ 1×105 CFU/ml, and it was possible to improve the percentages of direct identifications from urine samples with bacterial counts of < 1 × 105 CFU/ml. CONCLUSIÓN: It is concluded that the MALDI-TOF system is both fast and reliable in the identification of individual microorganisms from untreated urine samples with counts of ≥ 1 × 105 CFU/mll
INTRODUCCIÓN: El uso de la espectrometría de masas Matrix Assisted Laser Desorption/Ionization-Time of Flight (MALDI-TOF) es una técnica implantada en los laboratorios de Microbiología Clínica que permite llevar a cabo la identificación de microorganismos. Una de las aplicaciones de esta técnica es la identificación a partir de muestra directa de orina. MÉTODOS: En este estudio se propone un protocolo de centrifugación diferencial y un criterio de validación de los resultados para alcanzar la identificación microbiana a partir de muestra directa de orina. Adicionalmente se estudia la sensibilidad del procedimiento analítico en muestras de orina monomicrobianas. RESULTADOS: Las orinas con recuentos ≥ 1×105 UFC/ml mostraron un 90% de sensibilidad (Intervalo de Confianza de 81.96%-94.84%) y se logró mejorar los porcentajes de identificación directa a partir de orinas con recuentas bacterianos < 1×105 UFC/ml. CONCLUSIONES: La espectrometría de masas MALDI-TOF es un sistema rápido y fiable para la identificación de microorganismos a partir de orinas monomicrobianas con recuentos ≥ 1 × 105 UFC/ml
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Humanos , Infecciones Urinarias/microbiología , Orina/microbiología , Espectrometría de Masa por Láser de Matriz Asistida de Ionización Desorción/métodos , Carga BacterianaRESUMEN
INTRODUCCIÓN: Ceftarolina fosamil es un nuevo antibiótico de última generación del subgrupo de las cefalosporinas. Es el primer beta-lactámico comercializado que presenta actividad frente a Staphylococcus aureus resistente a la meticilina (SARM). El objetivo del presente estudio es determinar los valores in vitro de la concentración mínima inhibitoria (CMI) y de la concentración mínima bactericida (CMB) de ceftarolina frente a cepas de S. aureus, tanto sensible a la meticilina (SASM) como resistente. MATERIAL Y MÉTODOS: Se realizó un estudio multicéntrico en el que participaron 4 hospitales representativos de la geografía española. Mediante el método de microdilución en caldo se determinaron los valores de CMI y CMB de la ceftarolina frente a cepas de S. aureus (SARM y SASM). RESULTADOS: Se analizaron un total de 266 cepas de S. aureus (95 SARM y 171 SASM). En las 266 cepas analizadas, todos los valores de CMI se encontraron dentro de la categoría de sensible (valor ≤ 1 μg/ml), no detectándose ninguna cepa intermedia ni ni resistente. Las CMI50 y CMI90 para SAMR fueron de 0,25 y 0,5 μg/ml, respectivamente, con un rango de 0,125 a 1 μg/ml. Las CMI50 y CMI90 para SASM fueron de 0,125 y 0,25 μg/ml, con un rango de 0,125 a 0,5 μg/ml. Las CMB50 y CMB90 para SAMR fueron de 0,5 y 1 μg/ml, respectivamente, con un rango de 0,125 a 1 μg/ml. Las CMB50 y CMB90 para SASM fueron de 0,25 y 0,25 μg/ml, con un rango de 0,125 a 0,5 μg/ml. CONCLUSIÓN: Ceftarolina muestra una excelente actividad in vitro frente a S.aureus, incluyendo cepas SARM, por lo que podría presentarse como una alternativa prometedora en el tratamiento de infecciones causadas por esta bacteria
INTRODUCTION: Ceftaroline fosamil is a new-generation antimicrobial agent of cephalosporins subgroup. It is the first commercially available beta-lactam antibiotic that exhibits activity against methicillin-resistantStaphylococcus aureus (MRSA). The aim of this study is to determine the in vitro Minimum Inhibitory Concentration (MIC) and Minimum Bactericidal Concentration (MBC) values of ceftar oline against S. aureus strains (including MRSA). MATERIAL AND METHODS: A multicenter study involving four hospitals representative of the Spanish geography was performed. MIC and MBC values against both the methicillin-resistant and sensitive strains of S. aureus (MRSA and methicillin-sensitive S. aureus [MSSA]) were determined using a broth microdilution method. RESULTS: A total of 266 S. aureus strains were analyzed (95 MRSA and 171 MSSA). Ceftaroline bacterial sensitivity showed a mean MIC of 0.227 μg/ml (SD=0.146; range, 0.06 to 1μg/ml). All MIC values of the 266 strains tested belonged to the sensitive category (value ≤1μg/ml). Intermediate or resistant strains were not detected. MIC50 and MIC90 values for MRSA were 0.25 and 0.5μg/ml, respectively (range = 0.125-1 μg/ml). MSSA strains showed MIC50 and MIC90 values of 0.125 and 0.25 μg/ml, respectively (range = 0.125-0.5 μg/ml). MBC50 and MBC90 values for MRSA were 0.5 and 1μg/ml, respectively (range = 0.125-1μg/ml). MSSA strains showed MBC50 and MBC90 values of 0.25 and 0.25 μg/ml, respectively (range = 0.125-0.5 μg/ml). CONCLUSIÓN: Ceftaroline shows excellent in vitro activity against S.aureus, including MRSA strains. Therefore, this antibiotic may be a promising alternative for the treatment of infections caused by this bacterium
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Humanos , Staphylococcus aureus/patogenicidad , Infecciones Estafilocócicas/tratamiento farmacológico , Antibacterianos/farmacocinética , Pruebas de Sensibilidad Microbiana/métodos , Farmacorresistencia MicrobianaRESUMEN
INTRODUCTION: Ceftaroline fosamil is a new-generation antimicrobial agent of cephalosporins subgroup. It is the first commercially available beta-lactam antibiotic that exhibits activity against methicillin-resistant Staphylococcus aureus (MRSA). The aim of this study is to determine the in vitro Minimum Inhibitory Concentration (MIC) and Minimum Bactericidal Concentration (MBC) values of ceftaroline against S.aureus strains (including MRSA). MATERIAL AND METHODS: A multicenter study involving four hospitals representative of the Spanish geography was performed. MIC and MBC values against both the methicillin-resistant and sensitive strains of S.aureus (MRSA and methicillin-sensitive S.aureus [MSSA]) were determined using a broth microdilution method. RESULTS: A total of 266 S.aureus strains were analyzed (95 MRSA and 171 MSSA). Ceftaroline bacterial sensitivity showed a mean MIC of 0.227 µg/ml (SD=0.146; range, 0.06 to 1 µg/ml). All MIC values of the 266 strains tested belonged to the sensitive category (value ≤ 1 µg/ml). Intermediate or resistant strains were not detected. MIC50 and MIC90 values for MRSA were 0.25 and 0.5 µg/ml, respectively (range=0.125-1 µg/ml). MSSA strains showed MIC50 and MIC90 values of 0.125 and 0.25 µg/ml, respectively (range=0.125-0.5 µg/ml). MBC50 and MBC90 values for MRSA were 0.5 and 1 µg/ml, respectively (range=0.125-1 µg/ml). MSSA strains showed MBC50 and MBC90 values of 0.25 and 0.25 µg/ml, respectively (range=0.125-0.5 µg/ml). CONCLUSION: Ceftaroline shows excellent in vitro activity against S.aureus, including MRSA strains. Therefore, this antibiotic may be a promising alternative for the treatment of infections caused by this bacterium.
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Cefalosporinas/farmacología , Staphylococcus aureus/efectos de los fármacos , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Niño , Preescolar , Femenino , Humanos , Lactante , Masculino , Staphylococcus aureus Resistente a Meticilina/efectos de los fármacos , Staphylococcus aureus Resistente a Meticilina/aislamiento & purificación , Pruebas de Sensibilidad Microbiana , Persona de Mediana Edad , Staphylococcus aureus/aislamiento & purificación , Adulto Joven , CeftarolinaRESUMEN
INTRODUCTION: Matrix assisted laser desorption/ionization-time of flight (MALDI-TOF) mass spectrometry is widely established as a technique in clinical microbiology laboratories for the identification of microorganisms. Using this technique, it is also possible to obtain the identification of microorganisms from untreated urine samples. METHODS: In this study, a differential centrifugation protocol and a criterion for validation of the results in order to achieve microbial identification from untreated urine samples are proposed. Additionally, the sensitivity of the analytical procedure in monobacterial urine samples has been evaluated. RESULTS: A 90% sensitivity (confidence interval of 81.96%-94.84%) was obtained in urine samples with bacterial counts of ≥1×10(5)CFU/ml, and it was possible to improve the percentages of direct identifications from urine samples with bacterial counts of <1×10(5)CFU/ml. CONCLUSION: It is concluded that the MALDI-TOF system is both fast and reliable in the identification of individual microorganisms from untreated urine samples with counts of ≥1×10(5)CFU/ml.
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Bacterias/aislamiento & purificación , Espectrometría de Masa por Láser de Matriz Asistida de Ionización Desorción , Infecciones Urinarias/microbiología , Infecciones Urinarias/orina , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Niño , Preescolar , Femenino , Humanos , Masculino , Persona de Mediana Edad , Factores de Tiempo , Adulto JovenRESUMEN
No disponible