Epidemiology of 2009 Pandemic Influenza A (H1N1) in the United States

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

  • 1 Influenza Division

    2 National Center for Immunization and Respiratory Diseases, Office of the Director

    3 Division of Emerging Infections and Surveillance Services, Centers for Disease Control and Prevention, Atlanta, Georgia

Correspondence: Michael A. Jhung, M.D., 1600 Clifton Rd, MS-A32, Atlanta, GA 30333 ([email protected]).

The findings and conclusions in this report are those of the authors and do not necessarily represent the official position of the Centers for Disease Control and Prevention.

Clinical Infectious Diseases 52(suppl_1):p S13-S26, January 01, 2011. | DOI: 10.1093/cid/ciq008

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.

Copyright © Copyright Oxford University Press 2011.