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Clin Infect Dis. 2011 Jan 1;52 Suppl 1:S13-26. doi: 10.1093/cid/ciq008.

Epidemiology of 2009 pandemic influenza A (H1N1) in the United States.

Author information

1
Influenza Division, Centers for Disease Control and Prevention, Atlanta, Georgia, USA. mjhung@cdc.gov

Abstract

In April 2009, the Centers for Disease Control and Prevention confirmed 2 cases of 2009 pandemic influenza A (H1N1) virus infection in children from southern California, marking the beginning of what would be the first influenza pandemic of the twenty-first century. This report describes the epidemiology of the 2009 H1N1 pandemic in the United States, including characterization of cases, fluctuations of disease burden over the course of a year, the age distribution of illness and severe outcomes, and estimation of the overall burden of disease.

PMID:
21342884
DOI:
10.1093/cid/ciq008
[Indexed for MEDLINE]

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