West Nile Virus is  a mosquito-borne disease (arbovirus) that was originally found in Africa.  In 1999, it was detected in New York when several birds in the Bronx Zoo mysteriously died.  WNV has now spread across the country and has become endemic in United States.

West Nile Virus belongs to a larger group of viruses that includes Dengue, Japanese Encephalitis, St. Louis Encephalitis, and Yellow Fever.

Click on the below link for more information about West Nile Virus:

• California Department of Public Health