Crow Deaths as a Sentinel Surveillance System for West Nile Virus in the Northeastern United States, 1999
In addition to human encephalitis and meningitis cases, the West Nile (WN) virus outbreak in the summer and fall of 1999 in New York State resulted in bird deaths in New York, New Jersey, and Ethernet Cable Connecticut.From August to December 1999, 295 dead birds were laboratory-confirmed with WN virus infection; 262 (89%) were American Crows (Corv