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. 2011 Jan 1:52 Suppl 1:S13-26.
doi: 10.1093/cid/ciq008.

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

Michael A Jhung  1 , David Swerdlow, Sonja J Olsen, Daniel Jernigan, Matthew Biggerstaff, Laurie Kamimoto, Krista Kniss, Carrie Reed, Alicia Fry, Lynnette Brammer, Jacqueline Gindler, William J Gregg, Joseph Bresee, Lyn Finelli
Affiliations

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

Michael A Jhung et al. Clin Infect Dis. .

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.

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