First isolation of West Nile Virus (WNV) in Nassau County

The New York State Department of Health reported today on the first isolation of West Nile Virus (WNV) in Nassau County, New York. The virus was identified in a crow which was collected on June 22nd in Muttontown.

To date, no humans or horses have tested positive for West Nile virus in Nassau County.

Nassau County has no plans to spray for adult mosquitoes at this time.

"The presence of the West Nile virus in birds is not unexpected," said Dr. David Ackman, Nassau County Commissioner of Health. "We hope this finding serves to add urgency to our message of eliminating mosquito breeding sites around the home and on private property."

The Departments of Health and Public Works have intensified mosquito control activity in the Muttontown area. They are inspecting breeding sites and, when necessary, applying larvicide. Mosquito surveillance will continue at all 42 trap sites located throughout the County. To date, no mosquito pools have been positive for West Nile virus in Nassau County. The County will continue the routine aerial applications of larvicide in the non-populated areas in the salt marshes off Jones Beach.

Because West Nile virus is present throughout New York State and beyond, and the primary carrier of WNV in Nassau County is the Culex pipiens, or "house mosquito" which flies approximately 200 feet from its breeding site, residents are urged to continue to take precautions for safety and protection.