NEW YORK - The city Health Department says four people in the city have been infected with the West Nile virus.
Two of those diagnosed are from Queens, one from Staten Island and another from Brooklyn.
Mosquitos carrying the virus have been found in all five boroughs.
Ten insecticide spray treatments have already been done and more are planned.
West Nile virus can cause fever, body aches and rashes in humans.
Health officials recommend wearing bug spray, making sure your windows have screens and getting rid of any standing water.