It bites and infects birds that other mosquitos then bite and then spread the virus to people.
Most people who become infected with West Nile virus experience no symptoms or a mild, flu-like illness, according to the Centers for Disease Control and Prevention. These areas include urban catch basins, clogged gutters, discarded tires, poorly maintained swimming pools, flower pots, roof gutters, and other containers that hold water.
The Saskatchewan Health Authority is warning residents in southeastern Saskatchewan that the risk of West Nile virus infection is increasing.
KDHE did say there are no cases now. Experts say one in five people who are infected usually develop a fever headache, neck stiffness, disorientation, tremors, convulsions, muscle weakness, coma, vision loss, numbness, and paralysis.
He says older people are more at risk.
The health department says it's sending one dead bird to the state that's suspected of having the virus.
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Jim Erwin, a biologist with Indiana's Marion County Public Health Department, said residents should take steps beyond repellent to keep mosquitoes from biting.
The Grant County Mosquito Control District in Moses Lake tracks mosquitos and tests them for diseases. Wear repellent and wear long sleeves and trousers at these times, or stay indoors. Empty containers and change water weekly in containers that can not be removed, such as bird baths, pet dishes and wading pools.
Reduce mosquito exposure by limiting outdoor activities between dusk and dawn.
Use an approved repellent according to its label.
The CDC also suggests installing or repairing screens on windows and doors or use air conditioning. Drain any standing water in your yard each week. The FDA recommends insect repellents with DEET or picaridin as an active ingredient, wearing long sleeves and long trousers in areas where mosquitoes are active and staying indoors, keeping window screens closed.