Mosquitoes with West Nile virus found in Louisville

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Symptoms associated with West Nile virus typically appear 3 to 14 days after infection.

There are no confirmed human cases of the virus in the region so far this year. Anyone who thinks they may be infected should see a doctor immediately, officials said.

Symptoms of the viral disease vary from person to person, the CDC noted.

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"But through a very aggressive trapping and monitoring program we're seeing higher numbers of West Nile virus infected mosquito pools". Rarely, transmission to humans has occurred via exposure in a laboratory setting, through a blood transfusion or organ donation or from mother to baby during pregnancy, delivery or breastfeeding. WNV is maintained in nature in a cycle involving transmission between birds and mosquitoes.

The most vulnerable to the virus are people age 50 and older and those who have weakened immune systems because of diseases such as diabetes and cancer. Symptoms include fever, fatigue, headache, body aches, skin rashes and swollen lymph nodes. Of those, 23 cases involved meningitis or encephalitis. Manitobans are urged to protect themselves by staying indoors during dusk and dawn, using mosquito repellent, and wearing white, long-sleeved shirts and trousers instead of shorts. "You should wear insect repellant if you go outside during dusk or dawn and should remove standing water around your home".

"Public Health thanks the community for being diligent in removing standing water and eliminating the places where mosquitoes can breed", Callanan said. The use of mosquito nets can be useful at night, particularly for infants.

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