Concord, NH – The New Hampshire Department of Health and Human Services (DHHS) has identified the first batch of mosquitoes to test positive for West Nile virus (WNV) this season. The batch was found recently in the city of Manchester.
DHHS is working in partnership with the City of Manchester Health Department on providing additional risk mitigation information to Manchester residents and surrounding towns.
“West Nile virus is transmitted to humans from the bite of an infected mosquito,” said NH State Epidemiologist, Dr. Benjamin Chan. “The best way to prevent WNV and other mosquito-transmitted infections is to take steps to avoid mosquito bites by using an insect repellent effective against mosquitoes, avoid being outdoors between dusk and dawn when mosquitoes are most active, and remove any standing water from around the home, where mosquitoes reproduce.”
Symptoms of WNV usually appear within a week after being bitten by an infected mosquito, although many people can be infected and not develop any symptoms, or only develop very mild symptoms. Symptoms can include flu-like illness including fever, muscle aches, headaches, and fatigue. A very small percentage of individuals infected with WNV can go on to develop more serious central nervous system disease, including meningitis or encephalitis. If you or someone you know is experiencing flu-like symptoms, including fever and headache, contact your local medical provider.

