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Emerg Infect Dis. 2001 Jul-Aug; 7(4): 631–635.
PMCID: PMC2631773

Dead bird surveillance as an early warning system for West Nile virus.

M. Eidson, L. Kramer, W. Stone, Y. Hagiwara, K. Schmit, and New York State West Nile Virus Avian Surveillance Team

Abstract

As part of West Nile (WN) virus surveillance in New York State in 2000, 71,332 ill or dead birds were reported; 17,571 (24.6%) of these were American Crows. Of 3,976 dead birds tested, 1,263 (31.8%) were positive for WN virus. Viral activity was first confirmed in 60 of the state's 62 counties with WN virus-positive dead birds. Pathologic findings compatible with WN virus were seen in 1,576 birds (39.6% of those tested), of which 832 (52.8%) were positive for WN virus. Dead crow reports preceded confirmation of viral activity by several months, and WN virus-positive birds were found >3 months before the onset of human cases. Dead bird surveillance appears to be valuable for early detection of WN virus and for guiding public education and mosquito control efforts.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.
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