West Nile virus
West Nile encephalitis virus

West Nile virus peaked that year with 9,862 cases, of which 264 were fatal.

West Nile virus is unlikely to be an exception, health officials say.

West Nile virus is here to stay, health officials say.

Only 25 cases of West Nile virus have been reported so far this year - in 11 states.

"West Nile virus is a serious disease, and we have to take it seriously at the beginning of the season."

Health officials would also like to test them for the West Nile virus.

It is considered much more dangerous than the West Nile virus.

Welcome to the camp experience in the age of the West Nile virus.

The bird may have died from the West Nile virus.

West Nile virus appears to be settling in for the long haul.