Where else has West Nile virus been found?
Prior to 1999, no West Nile virus cases had been reported in the United States. During the 1999 encephalitis outbreak, there were 62 human cases and seven deaths. In 2000, there were 21 diagnosed cases and two deaths. However many infected people showed mild flu-like symptoms or no symptoms at all. In 2000, West Nile virus was found in New York, New Jersey, Connecticut, Rhode Island, Massachusetts, Vermont, Virginia, Maryland, Pennsylvania, North Carolina, and New Hampshire. Positive horses have been found in New York, New Jersey, Connecticut, Rhode Island, Pennsylvania, and Massachusetts. By December of 2001 the virus had been found in 27 states.
