How many cases of West Nile encephalitis in humans have occurred in the U.S.?
The 2001 Summary of West Nile virus surveillance produced by the Center for Disease Control and Prevention (CDC) estimated a total of 50 confirmed human infections of West Nile virus during 2001. According to the CDC, there were five deaths nationwide from West Nile Virus during 2001. Of the 50 cases, 6 were in CT, 11 in FL, 1 in GA, 1 in LA, 2 in MA, 6 in MD, 8 in NJ, 12 in NY, and 3 in PA. As of July 18, 2002, there have been 3 cases of human disease due to West Nile virus infection reported and confirmed by Center for Disease Control and Prevention in the USA. This number will increase as additional cases are confirmed.