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Clinical attack rate and presentation of pandemic H1N1 influenza versus seasonal influenza A and B in a pediatric cohort in Nicaragua.

by / Wednesday, 21 July 2010 / Published in Faculty Research in Latin America, Research

CGPH FACULTY: Aubree Gordon, Eva Haris

DATE OF PUBLICATION: June 2010

REGION: Latin America

REFERENCE: Gordon A, Saborío S, Videa E, López R, Kuan G, Balmaseda A, Harris E.Clinical attack rate and presentation of pandemic H1N1 influenza versus seasonal influenza A and B in a pediatric cohort in Nicaragua. Clin Infect Dis. 2010 Jun 1;50(11):1462-7. doi: 10.1086/652647.

SUMMARY/ABSTRACT: Little is known about the clinical presentation and epidemiology of influenza A H1N1pdm in children in developing countries. We assessed the severity of influenza A H1N1pdm in children in Nicaragua by comparing H1N1pdm cases to seasonal influenza cases in an ongoing cohort study. The Nicaraguan Influenza Cohort Study was established in June 2007 to study the burden and seasonality of pediatric influenza in a tropical developing country. During the period from June 2007 through November 2009, a total of 4391 children aged 2-14 years participated in the cohort. We examined the attack rate of clinical influenza and assessed symptoms at first presentation in febrile patients with H1N1pdm versus those with seasonal influenza A or B. Children with influenza A H1N1pdm presented with significantly more symptoms of lower respiratory infection and gastrointestinal symptoms than children with seasonal influenza. The clinical influenza attack rate was high in both pandemic and seasonal years.

ACCESS: Link to Pubmed

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