Volume 10, Number 6, June 2004

Antibody Prevalence of West Nile Virus in Birds, Illinois, 2002

Adam M. Ringia,* Bradley J. Blitvich,† Hyun-Young Koo,‡ Marshall Van de Wyngaerde,* Jeff D. Brawn,‡ and Robert J. Novak*
*Illinois Natural History Survey, Champaign, Illinois, USA; †Colorado State University, Fort Collins, Colorado, USA; and ‡University of Illinois, Champaign, Illinois, USA

Figure 2. Monthly percentage of West Nile virus antibody–positive birds in Illinois during 2002, with corresponding sample size. First human, mosquito, and equine cases for Illinois are reported for comparison. Bars show the monthly sample size and lines indicate the monthly seroprevalence.

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This page last reviewed May 21, 2004

Emerging Infectious Diseases Journal
National Center for Infectious Diseases
Centers for Disease Control and Prevention