The Illinois Department of Public Health has confirmed a bird and mosquitoes have tested positive for West Nile virus. Henry County Health Department employees found a bird infected with the virus on May 29 in Colona. Madison County Health Department found a batch of mosquitoes that tested positive for West Nile in Godfrey a day later. Mosquitoes pick up the virus by feeding on infected birds and passing it on through their bits. Common symptoms include fever, nausea, head and muscle aches. Public Health officials say that virus activity is largely dependent on the weather. They say surveillance for West Nile virus in Illinois includes tests on mosquito batches, dead crows and birds, in addition to the testing sick humans and horses.
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