Columbus, OH – Health officials are reminding Ohio residents to stay alert for signs of West Nile virus infection as mosquito season continues into October. The Ohio Department of Health (ODH) says cases can still occur while mosquitoes remain active during warmer fall days.
According to the ODH, the virus spreads through the bite of an infected mosquito, which typically becomes infected after feeding on an infected bird. Most human cases in Ohio are reported between July and October, when mosquito activity peaks.
About 80% of people infected show no symptoms, but those who do may develop fever, headache, body aches, nausea, or rash within two to 14 days after being bitten. In rare cases, severe illness can occur, leading to neck stiffness, confusion, seizures, paralysis, or coma, particularly in adults over 50.
There is no specific treatment for West Nile virus, and recovery may take several weeks for those who develop serious symptoms. Health officials urge residents to reduce risk by applying EPA-registered repellents, emptying standing water, and repairing window screens to keep mosquitoes out of homes.
Mosquito activity is expected to decrease as temperatures drop, but the ODH says prevention remains crucial through the end of the month. “Even one warm evening can allow mosquitoes to bite and spread disease,” officials cautioned.
Residents can learn more about prevention and symptom awareness by visiting odh.ohio.gov/wnv.
This article was produced by a journalist and may include AI-assisted input. All content is reviewed for accuracy and fairness.
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