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Occurrence of West Nile virus infection in raptors at the Salton Sea, California

January 1, 2010

We investigated the prevalence of West Nile virus (WNV)-neutralizing antibodies and infectious virus, and the occurrence of overwinter transmission in two raptor species during January and March 2006 at the Salton Sea, Imperial County, California. We captured 208 American Kestrels (Falco sparverius) (January, n=100; March, n=108) and 116 Burrowing Owls (Athene cunicularia) (January, n=52; March, n=64). Laboratory analysis revealed that 83% of American Kestrels and 31% of Burrowing Owls were positive for WNV-neutralizing antibodies. Additionally, two seroconversions were detected in Burrowing Owls between January and March. Infectious WNV, consistent with acute infection, was not detected in any bird.

Citation Information

Publication Year 2010
Title Occurrence of West Nile virus infection in raptors at the Salton Sea, California
DOI 10.7589/0090-3558-46.3.889
Authors Robert J. Dusek, William M. Iko, Erik K. Hofmeister
Publication Type Article
Publication Subtype Journal Article
Series Title Journal of Wildlife Diseases
Series Number
Index ID 70194390
Record Source USGS Publications Warehouse
USGS Organization Fort Collins Science Center