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Clin Infect Dis. 2007 Apr 15;44(8):1084-8. Epub 2007 Mar 6.

Cases of swine influenza in humans: a review of the literature.

Author information

1
Center for Emerging Infectious Diseases, Department of Epidemiology, College of Public Health, University of Iowa, Iowa City, IA, USA. kendall-myers@uiowa.edu

Abstract

As the threat of a pandemic looms, improvement in our understanding of interspecies transmission of influenza is necessary. Using the search terms "swine," "influenza," and "human," we searched the PubMed database in April 2006 to identify publications describing symptomatic infections of humans with influenza viruses of swine origin. From these reports, we extracted data regarding demographic characteristics, epidemiological investigations, and laboratory results. We found 50 cases of apparent zoonotic swine influenza virus infection, 37 of which involved civilians and 13 of which involved military personnel, with a case-fatality rate of 14% (7 of 50 persons). Most civilian subjects (61%) reported exposure to swine. Although sporadic clinical cases of swine influenza occur in humans, the true incidence of zoonotic swine influenza virus infection is unknown. Because prior studies have shown that persons who work with swine are at increased risk of zoonotic influenza virus infection, it is prudent to include them in pandemic planning efforts.

PMID:
17366454
PMCID:
PMC1973337
DOI:
10.1086/512813
[Indexed for MEDLINE]
Free PMC Article

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