374626 01: (FILE PHOTO) Bacteriologist Erik Devereaux holds a mosquito that he will check for the West Nile Virus July 28, 2000 at the State Lab in Boston, MA. A man from the Queens borough was the second person in New York City to become infected with the West Nile Virus this year, the city's health department said, August 22, 2001. (Photo by Darren McCollester/Getty Images)