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Comparison of clinical presentation of respiratory tract infections in H1N1/09-positive and H1N1/09-negative patients

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Published in European Journal of Pediatrics. 2012, vol. 171, no. 1, p. 159-66
Collection Open Access - Licence nationale Springer
Abstract The true burden of influenza in children is difficult to assess and is probably underestimated as clinical signs are usually nonspecific, and formal viral identification is rarely searched. In this study, we compare the clinical features of infections related to the new H1N1/09 influenza virus with infections due to other respiratory viruses in children consulting in a tertiary care pediatric hospital in Geneva. Between October 1, 2009 and February 10, 2010, 109 patients were recruited, with a median of age of 7 years (range 0.1-18). There were 75 H1N1/09-positive patients (69%), and 32 (43%) had identified risk factors such as asthma or a history of wheezing. Fever (87%), cough (92%), and rhinitis (85%) were the most frequent reported presenting symptoms in both patient groups. H1N1/09-positive patients were significantly older (median of 8.2 vs. 4.6 years) and were more likely to have risk factors (43% vs. 24%) and myalgias (41% vs. 20%). H1N1/09-negative patients had more wheezing episodes (29% vs. 9%), higher rates of dyspnea (28% vs. 20%) and of hospital admissions (35% vs. 16%).
Keywords AdolescentAntiviral Agents/therapeutic useAsthma/complicationsCase-Control StudiesChildChild, PreschoolDiagnosis, DifferentialHospitalizationHumansInfantInfluenza A Virus, H1N1 Subtype/isolation & purificationInfluenza, Human/complications/diagnosis/drug therapy/virologyOseltamivir/therapeutic useProspective StudiesRespiratory Sounds/etiologyRisk FactorsSeizures, Febrile/etiology
PMID: 21674140
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Research groups Centre de vaccinologie et d'immunologie néonatale (177)
Facteurs influençants le développement pulmonaire: étude translationnelle chez l'animal et l'homme (182)
Groupe Laurent Kaiser (virologie clinique) (668)
Recherche en infectiologie pédiatrique et en pédiatrie générale (853)
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CRISINEL, Pierre-Alex et al. Comparison of clinical presentation of respiratory tract infections in H1N1/09-positive and H1N1/09-negative patients. In: European Journal of Pediatrics, 2012, vol. 171, n° 1, p. 159-66. doi: 10.1007/s00431-011-1513-7 https://archive-ouverte.unige.ch/unige:31578

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Deposited on : 2013-12-03

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