WOODSTOCK – The McHenry County Department of Health has confirmed its first human case of West Nile virus this year, as well as the state’s first human case.
A woman in her 50s from Fox River Grove was not hospitalized and has since recovered, according to a department news release.
Last year, McHenry County reported six human cases of West Nile virus. One human case was reported in the county in both 2011 and 2010.
This year, nine mosquito batches and six birds have tested positive for the virus in McHenry County. The Illinois Department of Health recorded 290 human cases in 20 counties in 2012, including 12 deaths, as compared with 34 human cases and three deaths in 2011.
Illness from West Nile virus is usually mild and includes fever, headache and body aches, but complications such as encephalitis, meningitis and death are possible.
Illness can occur three to 15 days after an infected mosquito bite. People 50 and older have the highest risk of severe disease.
For information, visit www.mcdh.info (Environmental Health) or call 815-334-4585.