Virginia, Illinois, and Pennsylvania have been added to the list of states affected by West Nile virus (WNV) in 2002. While WNV has been detected in all three states in past years, these positive bird findings showed up very early compared to past years of surveillance. In 2001, Virginia’s earliest finding of WNV in a bird was mid-July, Pennsylvania confimed its first case at the beginning of August, and Illinois found its first WNV-positive bird in September. Louisiana and Florida have been dealing with WNV in 2002 since early spring.


For more information and archived articles on West Nile virus, visit https://thehorse.com/wnv.

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