West Nile virus has been identified in a pool (group) of mosquitoes collected in Grand Forks. Although positive test rates for the virus remain low at this time, residents are encouraged to take extra precautions to avoid being bitten by mosquitoes. There have been no cases identified among humans.
The most common mosquito for transmitting West Nile virus, Culex tarsalis, is most active in the few hours after sunset. To help reduce your risk of getting West Nile virus, the following protective measures are recommended:
-Use insect repellent that contains DEET. -Limit outdoor activities between dusk and dawn when mosquitoes are most active. -Wear long pants and long-sleeved shirts when possible. -Eliminate standing water around homes (e.g., buckets, flowerpots, old tires, wading pools, and birdbaths).
West Nile virus is generally transmitted by mosquitoes. Most people infected with West Nile virus do not develop symptoms. Some may develop mild illness one to two weeks after exposure with symptoms such as fever, headache, body aches, skin rash, and swollen lymph nodes. Less than one percent of infected people may develop a serious illness that includes encephalitis (inflammation of the brain). These persons might experience headache, high fever, neck stiffness, disorientation, convulsions, and muscle weakness. Infection may prove fatal in a small number of those who develop encephalitis, especially among older individuals. If you think you or a family member might have West Nile virus disease, speak with your health care provider.