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1.
Eur Respir J ; 61(2)2023 02.
Artículo en Inglés | MEDLINE | ID: mdl-36356971

RESUMEN

BACKGROUND: Bronchiolitis is a major source of morbimortality among young children worldwide. Non-pharmaceutical interventions (NPIs) implemented to reduce the spread of severe acute respiratory syndrome coronavirus 2 may have had an important impact on bronchiolitis outbreaks, as well as major societal consequences. Discriminating between their respective impacts would help define optimal public health strategies against bronchiolitis. We aimed to assess the respective impact of each NPI on bronchiolitis outbreaks in 14 European countries. METHODS: We conducted a quasi-experimental interrupted time-series analysis based on a multicentre international study. All children diagnosed with bronchiolitis presenting to the paediatric emergency department of one of 27 centres from January 2018 to March 2021 were included. We assessed the association between each NPI and change in the bronchiolitis trend over time by seasonally adjusted multivariable quasi-Poisson regression modelling. RESULTS: In total, 42 916 children were included. We observed an overall cumulative 78% (95% CI -100- -54%; p<0.0001) reduction in bronchiolitis cases following NPI implementation. The decrease varied between countries from -97% (95% CI -100- -47%; p=0.0005) to -36% (95% CI -79-7%; p=0.105). Full lockdown (incidence rate ratio (IRR) 0.21 (95% CI 0.14-0.30); p<0.001), secondary school closure (IRR 0.33 (95% CI 0.20-0.52); p<0.0001), wearing a mask indoors (IRR 0.49 (95% CI 0.25-0.94); p=0.034) and teleworking (IRR 0.55 (95% CI 0.31-0.97); p=0.038) were independently associated with reducing bronchiolitis. CONCLUSIONS: Several NPIs were associated with a reduction of bronchiolitis outbreaks, including full lockdown, school closure, teleworking and facial masking. Some of these public health interventions may be considered to further reduce the global burden of bronchiolitis.


Asunto(s)
Bronquiolitis , COVID-19 , Niño , Humanos , Preescolar , COVID-19/epidemiología , COVID-19/prevención & control , Control de Enfermedades Transmisibles , SARS-CoV-2 , Bronquiolitis/epidemiología , Bronquiolitis/prevención & control , Brotes de Enfermedades/prevención & control
2.
BMC Infect Dis ; 23(1): 400, 2023 Jun 12.
Artículo en Inglés | MEDLINE | ID: mdl-37308821

RESUMEN

BACKGROUND: The aim of this study was to define a set of urinary tract infections (UTIs)-specific quality indicators for appropriate prescribing in children and evaluate clinical practices in a district general hospital in Greece. METHODS: The UTIs-specific quality indicators were informed by a review of the existing literature. Quality indicators were selected to describe the overall antibiotics use, prescribing patterns and UTIs clinical management regarding treatment and prophylaxis in a cohort of children admitted with a UTI. Microbiological, clinical and prescribing data about dosing, duration and route of administration were collected from the patients' electronic health records. RESULTS: Twelve quality indicators were adapted or developed for prescribing in childhood UTIs. A broad variety of antibiotics were prescribed for UTIs, with a drug utilization (DU) 90% rate of 6 and 9 different antibiotics for febrile and afebrile UTIs, respectively. Despite the low incidence of multi-drug resistant UTIs in the study period (9/261, 3.4%), broad-spectrum antibiotics were prescribed in 33.5% (164/490) of prescriptions. A total of 62.8% (164/261) of patients were started on empiric combined therapies, while opportunities to de-escalate were missed in 37.8% (62/164) of them. One quarter (67/261, 25.7%) of patients did not fulfil the criteria for receiving treatment, while nearly half of those prescribed prophylaxis (82/175, 46.9%) could have avoided having a prophylaxis prescription. CONCLUSIONS: Our study identified substantial gaps for improvement in antimicrobial prescribing for UTIs in children. The application of the proposed quality indicators could help to limit unnecessary antibiotics use in children with UTI.


Asunto(s)
Antibacterianos , Infecciones Urinarias , Humanos , Niño , Indicadores de Calidad de la Atención de Salud , Utilización de Medicamentos , Registros Electrónicos de Salud
3.
PLoS Med ; 19(8): e1003974, 2022 08.
Artículo en Inglés | MEDLINE | ID: mdl-36026507

RESUMEN

BACKGROUND: During the initial phase of the Coronavirus Disease 2019 (COVID-19) pandemic, reduced numbers of acutely ill or injured children presented to emergency departments (EDs). Concerns were raised about the potential for delayed and more severe presentations and an increase in diagnoses such as diabetic ketoacidosis and mental health issues. This multinational observational study aimed to study the number of children presenting to EDs across Europe during the early COVID-19 pandemic and factors influencing this and to investigate changes in severity of illness and diagnoses. METHODS AND FINDINGS: Routine health data were extracted retrospectively from electronic patient records of children aged 18 years and under, presenting to 38 EDs in 16 European countries for the period January 2018 to May 2020, using predefined and standardized data domains. Observed and predicted numbers of ED attendances were calculated for the period February 2020 to May 2020. Poisson models and incidence rate ratios (IRRs), using predicted counts for each site as offset to adjust for case-mix differences, were used to compare age groups, diagnoses, and outcomes. Reductions in pediatric ED attendances, hospital admissions, and high triage urgencies were seen in all participating sites. ED attendances were relatively higher in countries with lower SARS-CoV-2 prevalence (IRR 2.26, 95% CI 1.90 to 2.70, p < 0.001) and in children aged <12 months (12 to <24 months IRR 0.86, 95% CI 0.84 to 0.89; 2 to <5 years IRR 0.80, 95% CI 0.78 to 0.82; 5 to <12 years IRR 0.68, 95% CI 0.67 to 0.70; 12 to 18 years IRR 0.72, 95% CI 0.70 to 0.74; versus age <12 months as reference group, p < 0.001). The lowering of pediatric intensive care admissions was not as great as that of general admissions (IRR 1.30, 95% CI 1.16 to 1.45, p < 0.001). Lower triage urgencies were reduced more than higher triage urgencies (urgent triage IRR 1.10, 95% CI 1.08 to 1.12; emergent and very urgent triage IRR 1.53, 95% CI 1.49 to 1.57; versus nonurgent triage category, p < 0.001). Reductions were highest and sustained throughout the study period for children with communicable infectious diseases. The main limitation was the retrospective nature of the study, using routine clinical data from a wide range of European hospitals and health systems. CONCLUSIONS: Reductions in ED attendances were seen across Europe during the first COVID-19 lockdown period. More severely ill children continued to attend hospital more frequently compared to those with minor injuries and illnesses, although absolute numbers fell. TRIAL REGISTRATION: ISRCTN91495258 https://www.isrctn.com/ISRCTN91495258.


Asunto(s)
COVID-19 , Pandemias , COVID-19/epidemiología , Niño , Control de Enfermedades Transmisibles , Servicio de Urgencia en Hospital , Europa (Continente)/epidemiología , Humanos , Estudios Retrospectivos , SARS-CoV-2
4.
Environ Microbiol ; 24(10): 4725-4737, 2022 10.
Artículo en Inglés | MEDLINE | ID: mdl-36065993

RESUMEN

SARS-CoV-2 diagnosis is a cornerstone for the management of coronavirus disease 2019 (COVID-19). Numerous studies have assessed saliva performance over nasopharyngeal sampling (NPS), but data in young children are still rare. We explored saliva performance for SARS-CoV-2 detection by RT-PCR according to the time interval from initial symptoms or patient serological status. We collected 509 NPS and saliva paired samples at initial diagnosis from 166 children under 12 years of age (including 57 children under 6), 106 between 12 and 17, and 237 adults. In children under 12, overall detection rate for SARS-CoV-2 was comparable in saliva and NPS, with an overall agreement of 89.8%. Saliva sensitivity was significantly lower than that of NPS (77.1% compared to 95.8%) in pre-school and school-age children but regained 96% when considering seronegative children only. This pattern was also observed to a lesser degree in adolescents but not in adults. Sensitivity of saliva was independent of symptoms, in contrary to NPS, whose sensitivity decreased significantly in asymptomatic subjects. Performance of saliva is excellent in children under 12 at early stages of infection. This reinforces saliva as a collection method for early and unbiased SARS-CoV-2 detection and a less invasive alternative for young children.


Asunto(s)
Prueba de COVID-19 , COVID-19 , SARS-CoV-2 , Saliva , Adolescente , Adulto , Niño , Preescolar , Humanos , Técnicas de Laboratorio Clínico/métodos , COVID-19/diagnóstico , COVID-19/virología , Prueba de COVID-19/métodos , Nasofaringe/virología , Saliva/virología , SARS-CoV-2/genética , SARS-CoV-2/aislamiento & purificación
5.
J Pediatr ; 247: 22-28.e2, 2022 08.
Artículo en Inglés | MEDLINE | ID: mdl-35577119

RESUMEN

OBJECTIVE: To describe neurologic, radiologic and laboratory features in children with central nervous system (CNS) inflammatory disease complicating severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. STUDY DESIGN: We focused on CNS inflammatory diseases in children referred from 12 hospitals in the Paris area to Necker-Sick Children Reference Centre. RESULTS: We identified 19 children who had a history of SARS-CoV-2 infection and manifest a variety of CNS inflammatory diseases: encephalopathy, cerebellar ataxia, acute disseminated encephalomyelitis, neuromyelitis optica spectrum disorder, or optic neuritis. All patients had a history of SARS-CoV-2 exposure, and all tested positive for circulating antibodies against SARS-CoV-2. At the onset of the neurologic disease, SARS-CoV-2 PCR results (nasopharyngeal swabs) were positive in 8 children. Cerebrospinal fluid was abnormal in 58% (11/19) and magnetic resonance imaging was abnormal in 74% (14/19). We identified an autoantibody co-trigger in 4 children (myelin-oligodendrocyte and aquaporin 4 antibodies), representing 21% of the cases. No autoantibody was found in the 6 children whose CNS inflammation was accompanied by a multisystem inflammatory syndrome in children. Overall, 89% of patients (17/19) received anti-inflammatory treatment, primarily high-pulse methylprednisolone. All patients had a complete long-term recovery and, to date, no patient with autoantibodies presented with a relapse. CONCLUSIONS: SARS2-CoV-2 represents a new trigger of postinfectious CNS inflammatory diseases in children.


Asunto(s)
COVID-19 , Autoanticuerpos , COVID-19/complicaciones , Humanos , Glicoproteína Mielina-Oligodendrócito , Enfermedades Neuroinflamatorias , SARS-CoV-2 , Síndrome de Respuesta Inflamatoria Sistémica
6.
Clin Infect Dis ; 72(2): 319-322, 2021 01 27.
Artículo en Inglés | MEDLINE | ID: mdl-33501967

RESUMEN

A time series analysis of 871 543 pediatric emergency visits revealed that the coronavirus disease 2019 (COVID-19) lockdown and school closures were associated with a significant decrease in infectious diseases disseminated through airborne or fecal-oral transmission: common cold, gastroenteritis, bronchiolitis, and acute otitis. No change was found for urinary tract infections.


Asunto(s)
COVID-19 , Pandemias , Niño , Control de Enfermedades Transmisibles , Humanos , SARS-CoV-2 , Instituciones Académicas
7.
Clin Infect Dis ; 72(12): 2215-2217, 2021 06 15.
Artículo en Inglés | MEDLINE | ID: mdl-32710743

RESUMEN

To assess the relevance of systematic severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) screening of all children admitted to hospital, we conducted a prospective multicenter study including 438 consecutive hospitalized children. A symptom-based SARS-CoV-2 testing strategy failed to identify 45% (95% confidence interval, 24%-68%) of hospitalized children infected by SARS-CoV-2. To limit intrahospital transmission, a systematic screening of children admitted to hospital should be considered.


Asunto(s)
COVID-19 , SARS-CoV-2 , Prueba de COVID-19 , Niño , Hospitales , Humanos , Estudios Prospectivos
8.
Ann Rheum Dis ; 79(8): 999-1006, 2020 08.
Artículo en Inglés | MEDLINE | ID: mdl-32527868

RESUMEN

BACKGROUND: Current data suggest that COVID-19 is less frequent in children, with a milder course. However, over the past weeks, an increase in the number of children presenting to hospitals in the greater Paris region with a phenotype resembling Kawasaki disease (KD) has led to an alert by the French national health authorities. METHODS: Multicentre compilation of patients with KD in Paris region since April 2020, associated with the detection of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) ('Kawa-COVID-19'). A historical cohort of 'classical' KD served as a comparator. RESULTS: Sixteen patients were included (sex ratio=1, median age 10 years IQR (4·7 to 12.5)). SARS-CoV-2 was detected in 12 cases (69%), while a further three cases had documented recent contact with a quantitative PCR-positive individual (19%). Cardiac involvement included myocarditis in 44% (n=7). Factors prognostic for the development of severe disease (ie, requiring intensive care, n=7) were age over 5 years and ferritinaemia >1400 µg/L. Only five patients (31%) were successfully treated with a single intravenous immunoglobulin (IVIg) infusion, while 10 patients (62%) required a second line of treatment. The Kawa-COVID-19 cohort differed from a comparator group of 'classical' KD by older age at onset 10 vs 2 years (p<0.0001), lower platelet count (188 vs 383 G/L (p<0.0001)), a higher rate of myocarditis 7/16 vs 3/220 (p=0.0001) and resistance to first IVIg treatment 10/16 vs 45/220 (p=0.004). CONCLUSION: Kawa-COVID-19 likely represents a new systemic inflammatory syndrome temporally associated with SARS-CoV-2 infection in children. Further prospective international studies are necessary to confirm these findings and better understand the pathophysiology of Kawa-COVID-19. Trial registration number NCT02377245.


Asunto(s)
Betacoronavirus , Infecciones por Coronavirus/diagnóstico , Síndrome Mucocutáneo Linfonodular/diagnóstico , Neumonía Viral/diagnóstico , Síndrome de Respuesta Inflamatoria Sistémica/diagnóstico , Adolescente , COVID-19 , Niño , Preescolar , Estudios de Cohortes , Infecciones por Coronavirus/epidemiología , Infecciones por Coronavirus/virología , Diagnóstico Diferencial , Femenino , Humanos , Masculino , Síndrome Mucocutáneo Linfonodular/virología , Pandemias , Paris/epidemiología , Neumonía Viral/epidemiología , Neumonía Viral/virología , SARS-CoV-2 , Síndrome de Respuesta Inflamatoria Sistémica/epidemiología , Síndrome de Respuesta Inflamatoria Sistémica/virología
9.
Clin Chem ; 66(6): 802-808, 2020 06 01.
Artículo en Inglés | MEDLINE | ID: mdl-32359149

RESUMEN

BACKGROUND: Fever is one of the leading causes of consultation in the pediatric emergency department for patients under the age of 3 years. Distinguishing between bacterial and viral infections etiologies in febrile patients remains challenging. We hypothesized that specific host biomarkers for viral infections, such as type I-interferon (IFN), could help clinicians' decisions and limit antibiotic overuse. METHODS: Paxgene tubes and serum were collected from febrile children (n = 101), age from 7 days to 36 months, with proven viral or bacterial infections, being treated at pediatric emergency departments in France. We assessed the performance of an IFN signature, which was based on quantification of expression of IFN-stimulated genes using the Nanostring® technology and plasma IFN-α quantified by digital ELISA technology. RESULTS: Serum concentrations of IFN-α were below the quantification threshold (30 fg/mL) for 2% (1/46) of children with proven viral infections and for 71% (39/55) of children with bacterial infections (P < 0.001). IFN-α concentrations and IFN score were significantly higher in viral compared to bacterial infection (P < 0.001). There was a strong correlation between serum IFN-α concentrations and IFN score (p-pearson = 0.83). Both serum IFN-α concentration and IFN score robustly discriminated (Area Under the Curve >0.91 for both) between viral and bacterial infection in febrile children, compared to C-reactive protein (0.83). CONCLUSIONS: IFN-α is increased in blood of febrile infants with viral infections. The discriminative performance of IFN-α femtomolar concentrations as well as blood transcriptional signatures could show a diagnostic benefit and potentially limit antibiotic overuse. CLINICAL TRIALS REGISTRATION: clinicaltrials.gov (NCT03163628).


Asunto(s)
Infecciones Bacterianas/diagnóstico , Interferón Tipo I/sangre , Virosis/diagnóstico , Biomarcadores/sangre , Preescolar , Diagnóstico Diferencial , Servicio de Urgencia en Hospital , Femenino , Fiebre , Humanos , Lactante , Recién Nacido , Masculino , Medicina de Urgencia Pediátrica/métodos , Medicina de Urgencia Pediátrica/organización & administración , Estudios Prospectivos
10.
J Pediatr ; 192: 234-239.e2, 2018 01.
Artículo en Inglés | MEDLINE | ID: mdl-29246347

RESUMEN

OBJECTIVE: To determine whether the seasonal distribution of Kingella kingae osteoarticular infections is similar to that of common respiratory viruses. STUDY DESIGN: Between October 2009 and September 2016, we extracted the results of K kingae-specific real-time polymerase chain reaction analyses performed for bone or joint specimens in patients from 2 pediatric tertiary care centers in Paris. We used data of respiratory virus detection from the Réseau National des Laboratoires network with coordination with the National Influenza Center of France. The Spearman rank correlation was used to assess a correlation between weekly distributions, with P < .05 denoting a significant correlation. RESULTS: During the 7-year study period, 322 children were diagnosed with K kingae osteoarticular infection, and 317 testing episodes were K kingae-negative. We observed high activity for both K kingae osteoarticular infection and human rhinovirus (HRV) during the fall (98 [30.4%] and 2401 [39.1%] cases, respectively) and low activity during summer (59 [18.3%] and 681 [11.1%] cases, respectively). Weekly distributions of K kingae osteoarticular infection and rhinovirus activity were significantly correlated (r = 0.30; P = .03). In contrast, no significant correlation was found between the weekly distribution of K kingae osteoarticular infection and other respiratory viruses (r = -0.17, P = .34 compared with respiratory syncytial virus; r = -0.13, P = .34 compared with influenza virus; and r = -0.22, P = .11 compared with metapneumovirus). CONCLUSION: A significant temporal association was observed between HRV circulation and K kingae osteoarticular infection, strengthening the hypothesis of a role of viral infections in the pathophysiology of K kingae invasive infection.


Asunto(s)
Artritis Infecciosa/epidemiología , Kingella kingae , Infecciones por Neisseriaceae/epidemiología , Infecciones por Picornaviridae/epidemiología , Rhinovirus , Estaciones del Año , Artritis Infecciosa/diagnóstico , Artritis Infecciosa/virología , Preescolar , Francia/epidemiología , Humanos , Lactante , Kingella kingae/aislamiento & purificación , Infecciones por Neisseriaceae/diagnóstico , Infecciones por Neisseriaceae/virología , Reacción en Cadena en Tiempo Real de la Polimerasa
11.
J Clin Microbiol ; 55(8): 2422-2430, 2017 08.
Artículo en Inglés | MEDLINE | ID: mdl-28539344

RESUMEN

Outbreaks of Kingella kingae invasive infections have recently been reported in day care centers. Pulsed-field gel electrophoresis (PFGE) and multilocus sequence typing (MLST) revealed that although the invasive strains had widespread dissemination in the day care population, less virulent strains were also circulating in the facilities. However, these typing tools are costly, time-consuming, and labor-intensive and provide delayed results. A study was conducted to assess the performance of a rapid and cost-effective genotyping tool targeting the DNA uptake sequence (DUS) in the investigation of outbreaks of K. kingae disease. DUS typing (DUST) patterns of each strain from 7 different clusters were compared to distinguish genotypically linked strains from others. PFGE and, when available, MLST results were used as gold standards. DUST was assessed on 80 K. kingae isolates from Nir-Itzhak (n = 14), Tel-Nof (n = 14), Palmahim (n = 5), Umm-al-Fahm (n = 7), Eilat (n = 8), Nevatim (n = 15) in Israel and Paris, France (n = 17). A unique DUST pattern was involved in the Nir-Itzhak, Palmahim, Umm-al-Fahm, and Paris episodes. Two DUST patterns were found in Eilat, whereas at least 3 were identified in the Tel-Nof and Nevatim episodes. In total, 11 (13.8%) children carried a K. kingae isolate that differed from the outbreak strain. These results were concordant with those obtained with the traditional PFGE and MLST methods. DUST appears to be sensitive and specific in distinguishing the invasive outbreak strain from others in asymptomatic carriers and could be useful to limit unnecessary exposure of the entire day care population to selective antibiotic pressure.


Asunto(s)
Bacteriemia/diagnóstico , Guarderías Infantiles , Brotes de Enfermedades , Kingella kingae/clasificación , Kingella kingae/aislamiento & purificación , Tipificación Molecular/métodos , Infecciones por Neisseriaceae/diagnóstico , Bacteriemia/epidemiología , Bacteriemia/microbiología , Preescolar , Humanos , Lactante , Israel/epidemiología , Kingella kingae/genética , Epidemiología Molecular/métodos , Infecciones por Neisseriaceae/epidemiología , Infecciones por Neisseriaceae/microbiología , Paris/epidemiología , Factores de Tiempo
12.
Antimicrob Agents Chemother ; 60(1): 703-8, 2016 01.
Artículo en Inglés | MEDLINE | ID: mdl-26574009

RESUMEN

We describe the genome of a penicillinase-producing Kingella kingae strain (KWG1), the first to be isolated in continental Europe, whose bla(TEM-1) gene was, for the first time in this species, found to be chromosomally inserted. The bla(TEM) gene is located in an integrative and conjugative element (ICE) inserted in Met-tRNA and comprising genes that encode resistance to sulfonamides, streptomycin, and tetracycline. This ICE is homologous to resistance-conferring plasmids of K. kingae and other Gram-negative bacteria.


Asunto(s)
Proteínas Bacterianas/genética , Cromosomas Bacterianos/química , Regulación Bacteriana de la Expresión Génica , Genoma Bacteriano , Kingella kingae/genética , beta-Lactamasas/genética , Antibacterianos/farmacología , Proteínas Bacterianas/metabolismo , Mapeo Cromosómico , Farmacorresistencia Bacteriana/genética , Ontología de Genes , Humanos , Kingella kingae/efectos de los fármacos , Kingella kingae/aislamiento & purificación , Kingella kingae/metabolismo , Anotación de Secuencia Molecular , Infecciones por Neisseriaceae/microbiología , Plásmidos/química , Plásmidos/metabolismo , Estreptomicina/farmacología , Sulfonamidas/farmacología , Tetraciclina/farmacología , beta-Lactamasas/metabolismo
13.
Clin Infect Dis ; 61(5): 779-86, 2015 Sep 01.
Artículo en Inglés | MEDLINE | ID: mdl-25944342

RESUMEN

BACKGROUND: We aimed to describe features of Escherichia coli meningitis in a large population of children and the molecular characteristics of the involved strains to determine factors associated with severe disease or death. METHODS: Between 2001 and 2013, a prospective national survey collected data for 325 children hospitalized with E. coli meningitis. The national reference center genetically characterized 141 isolates. RESULTS: Among the 325 cases, 65.2% were term, 22.4% late preterm, and 12.5% very/extremely preterm infants. Escherichia coli meningitis was 7-fold more frequent in preterm than term infants. Median age at diagnosis was 14 days; 71.1% of infants were neonates, with 2 peaks of infection at age 0-3 days (mostly preterm neonates) and 11-15 days (mostly term neonates); 8.9% were >89 days old. In total, 51.1% patients were considered to have severe disease, and 9.2% died. B2.1 phylogenetic subgroup (56%) and O1 serogroup (27.7%) were the most frequently identified. On multivariate analysis, death was associated with preterm birth (odds ratio [OR], 3.3 [95% confidence interval {CI}, 1.3-8.4], P = .015 for late preterm infants; OR, 7.3 [95% CI, 2.7-20.9], P < .001 for very/extremely preterm infants) and cerebrospinal fluid (CSF) to blood glucose ratio <0.10 (OR, 15.3 [95% CI, 1.8-128.3], P = .012). Death was associated with uncommon O serogroup strains (P = .014) and severe disease with O7 serogroup (P = .034) and PapGII adhesin (OR, 2.3 [95% CI, 1.2-4.5], P = .015). CONCLUSIONS: In this large study of 325 cases of E. coli meningitis, risk factors of severe disease or death were preterm birth, severe hypoglycorrhachia, CSF/blood glucose ratio <0.10, and molecular characteristics of strains, which should help optimize therapeutic management.


Asunto(s)
Enfermedades del Recién Nacido/epidemiología , Enfermedades del Recién Nacido/microbiología , Meningitis por Escherichia coli/epidemiología , Meningitis por Escherichia coli/microbiología , Glucemia , Escherichia coli/clasificación , Escherichia coli/genética , Femenino , Francia/epidemiología , Glucosa/líquido cefalorraquídeo , Humanos , Lactante , Recién Nacido , Enfermedades del Recién Nacido/mortalidad , Enfermedades del Recién Nacido/fisiopatología , Masculino , Meningitis por Escherichia coli/mortalidad , Meningitis por Escherichia coli/fisiopatología , Estudios Prospectivos , Factores de Riesgo
14.
Antimicrob Agents Chemother ; 58(10): 6258-9, 2014 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-25049250

RESUMEN

Kingella kingae is the major pathogen causing osteoarticular infections (OAI) in young children in numerous countries. Plasmid-borne TEM-1 penicillinase production has been sporadically detected in a few countries but not in continental Europe, despite a high prevalence of K. kingae infections. We describe here for the first time a K. kingae ß-lactamase-producing strain in continental Europe and demonstrate the novel chromosomal location of the blaTEM-1 gene in K. kingae species.


Asunto(s)
Kingella kingae/enzimología , Penicilinasa/genética , Electroforesis en Gel de Campo Pulsado , Europa (Continente) , Humanos , Kingella kingae/genética
15.
J Clin Microbiol ; 52(11): 3890-7, 2014 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-25143574

RESUMEN

Although Kingella kingae is the most common etiology of osteoarticular infections in young children, is a frequent cause of bacteremia in those younger than 4 years, and has been involved in clusters of invasive infections among daycare center attendees, the population structure of the species has not been systematically studied. Using multilocus sequence typing, we investigated the genetic diversity of the largest intercontinental collection of K. kingae strains to date. To facilitate typing of bacterial isolates, we developed a novel genotyping tool that targets the DNA uptake sequence (DUS). Among 324 strains isolated from asymptomatic carriers and patients from Israel, Europe, North America, and Australia with various invasive forms of the disease from 1960 to 2013, we identified 64 sequence types (STs) and 12 ST complexes (STcs). Five predominant STcs, comprising 72.2% of all strains, were distributed intercontinentally. ST-6 was the most frequent, showing a worldwide distribution, and appeared genotypically isolated by exhibiting few neighboring STs, suggesting an optimal fitness. ST-14 and ST-23 appeared to be the oldest groups of bacteria, while ST-25 probably emerged more recently from the highly evolutive ST-23. Using the DUS typing method, randomly chosen isolates were correctly classified to one of the major STcs. The comprehensive description of K. kingae evolution would help to detect new emerging clones and decipher virulence and fitness mechanisms. The rapid and reproducible DUS typing method may serve in the initial investigation of K. kingae outbreaks.


Asunto(s)
Variación Genética , Kingella kingae/clasificación , Kingella kingae/aislamiento & purificación , Tipificación de Secuencias Multilocus/métodos , Infecciones por Neisseriaceae/epidemiología , Infecciones por Neisseriaceae/microbiología , Australia/epidemiología , Preescolar , Análisis por Conglomerados , Europa (Continente)/epidemiología , Genotipo , Humanos , Lactante , Israel/epidemiología , Kingella kingae/genética , Epidemiología Molecular/métodos , América del Norte/epidemiología , Osteoartritis/epidemiología , Osteoartritis/microbiología , Reproducibilidad de los Resultados , Factores de Tiempo
16.
Pediatr Infect Dis J ; 43(5): 444-453, 2024 May 01.
Artículo en Inglés | MEDLINE | ID: mdl-38359342

RESUMEN

BACKGROUND: Multisystem inflammatory syndrome in children (MIS-C) is a rare but serious hyperinflammatory complication following infection with severe acute respiratory syndrome coronavirus 2. The mechanisms underpinning the pathophysiology of MIS-C are poorly understood. Moreover, clinically distinguishing MIS-C from other childhood infectious and inflammatory conditions, such as Kawasaki disease or severe bacterial and viral infections, is challenging due to overlapping clinical and laboratory features. We aimed to determine a set of plasma protein biomarkers that could discriminate MIS-C from those other diseases. METHODS: Seven candidate protein biomarkers for MIS-C were selected based on literature and from whole blood RNA sequencing data from patients with MIS-C and other diseases. Plasma concentrations of ARG1, CCL20, CD163, CORIN, CXCL9, PCSK9 and ADAMTS2 were quantified in MIS-C (n = 22), Kawasaki disease (n = 23), definite bacterial (n = 28) and viral (n = 27) disease and healthy controls (n = 8). Logistic regression models were used to determine the discriminatory ability of individual proteins and protein combinations to identify MIS-C and association with severity of illness. RESULTS: Plasma levels of CD163, CXCL9 and PCSK9 were significantly elevated in MIS-C with a combined area under the receiver operating characteristic curve of 85.7% (95% confidence interval: 76.6%-94.8%) for discriminating MIS-C from other childhood diseases. Lower ARG1 and CORIN plasma levels were significantly associated with severe MIS-C cases requiring inotropes, pediatric intensive care unit admission or with shock. CONCLUSION: Our findings demonstrate the feasibility of a host protein biomarker signature for MIS-C and may provide new insight into its pathophysiology.


Asunto(s)
COVID-19/complicaciones , Síndrome Mucocutáneo Linfonodular , Proproteína Convertasa 9 , Humanos , Niño , Síndrome Mucocutáneo Linfonodular/diagnóstico , Proteínas Sanguíneas , Síndrome de Respuesta Inflamatoria Sistémica/diagnóstico , Biomarcadores
18.
J Clin Microbiol ; 51(9): 3137-9, 2013 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-23784119

RESUMEN

We describe two atypical cases of Kingella kingae infection in children diagnosed by PCR, one case involving a soft tissue abscess and one case a femoral Brodie abscess. Both patients had concomitant human rhinovirus infection. K. kingae strains, isolated from an oropharyngeal swab, were characterized by multilocus sequence typing and rtxA sequencing.


Asunto(s)
Absceso/complicaciones , Absceso/microbiología , Kingella kingae/aislamiento & purificación , Infecciones por Neisseriaceae/complicaciones , Infecciones por Neisseriaceae/microbiología , Infecciones por Picornaviridae/diagnóstico , Rhinovirus/aislamiento & purificación , Proteínas Bacterianas/genética , Femenino , Humanos , Lactante , Kingella kingae/clasificación , Kingella kingae/genética , Tipificación de Secuencias Multilocus , Orofaringe/microbiología , Infecciones por Picornaviridae/virología
19.
Front Pediatr ; 11: 1245861, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-38188912

RESUMEN

Background: In March 2020, a 2-month lockdown of the entire population has been declared in France to limit the spread of COVID-19. Sudden changes in daily life can impact the glycemic control of patients with type 1 diabetes (T1D), especially children and adolescents. We aimed to assess the impact of the lockdown on glycemic control in children and adolescents with T1D. Methods: Children with T1D were prospectively recruited in two pediatric centers from May 11 to August 1, 2020. At inclusion, patients and/or parents were asked to fill in a form assessing the patient's lifestyle during the lockdown and a medical case report form was filled in by clinician. The mean of the three last glycated hemoglobin (HbA1c) values obtained before lockdown (HbA1c_mean; before March 17, 2020) was compared to the first HbA1c value measured after the lockdown (HbA1c_after; from May 11 to August 1, 2020). Univariable and multivariable analyses were performed, as appropriate, to identify factors associated with glycemic changes during lockdown. Results: One-hundred-and-eighteen children and adolescents (median age was 14.1 years, 50% males) with T1D (median time from diagnosis was 4.1 years) were enrolled in the study. No significant difference was observed between medians of HbA1c_mean and HbA1c_after values (8.37% [7.88; 9.32%] vs. 8.50% [7.70; 9.50%], respectively; p = 0.391). Returning to the community was a protective factor [OR 0.31 (0.09-0.94); p = 0.045]. Patients having increased HbA1c were more frequently in contact with a suspected case of COVID-19 [OR 9.07 (2.15-53.66); p = 0.006], whereas patients having decreased HbA1c had the feeling of increase number of hypoglycemia [OR 0.19 (0.05-0.57); p = 0.006]. Conclusion: In our patients, HbA1c before and after the lockdown was stable. In subgroup analysis, returning to the community was a protective factor. In addition, feeling of hypoglycemia was more frequent in the patients with decreased HbA1c.

20.
Infect Dis Now ; 53(8S): 104786, 2023 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-37730164

RESUMEN

Urinary tract infections are the most frequently proven bacterial infections in pediatrics. The treatment options proposed in this guide are based on recommendations published by the Groupe de Pathologie Infectieuse de Pédiatrique (GPIP-SFP). Except in rare situations (newborns, neutropenia, sepsis), a positive urine dipstick for leukocytes and/or nitrites should precede a urine culture examination and any antibiotic therapy. After rising steadily between 2000 and 2012, the proportion of Escherichia coli strains resistant to extended-spectrum ß-lactamases (E-ESBL) has remained stable over the last ten years (between 7% and 10% in pediatrics). However, in many cases no oral antibiotic is active on E-ESBL leading either to prolonged parenteral treatment, or to use of a non-orthodox combination such as cefixime + clavulanate. With the aim of avoiding penem antibiotics and encouraging outpatient management, this guide favors initial treatment of febrile urinary tract infections (suspected or actual E-ESBL infection), with amikacin. Amikacin remains active against the majority of E-ESBL strains. It could be prescribed as monotherapy for patients in pediatric emergency departments or otherwise hospitalized patients.


Asunto(s)
Antiinfecciosos , Infecciones Bacterianas , Infecciones Urinarias , Humanos , Niño , Recién Nacido , Amicacina/uso terapéutico , Infecciones Urinarias/tratamiento farmacológico , Antibacterianos/uso terapéutico , Infecciones Bacterianas/tratamiento farmacológico , Escherichia coli
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