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Emerg Infect Dis. 2009 Dec;15(12):2004-7. doi: 10.3201/eid1512.091413.

Estimates of the prevalence of pandemic (H1N1) 2009, United States, April-July 2009.

Author information

1
Influenza Division, Centers for Disease Control and Prevention, 1600 Clifton Rd NE, Mailstop A32, Atlanta, GA 30033, USA. creed1@cdc.gov

Abstract

Through July 2009, a total of 43,677 laboratory-confirmed cases of influenza A pandemic (H1N1) 2009 were reported in the United States, which is likely a substantial underestimate of the true number. Correcting for under-ascertainment using a multiplier model, we estimate that 1.8 million-5.7 million cases occurred, including 9,000-21,000 hospitalizations.

PMID:
19961687
PMCID:
PMC3375879
DOI:
10.3201/eid1512.091413
[Indexed for MEDLINE]
Free PMC Article

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