WOODSTOCK – Four McHenry County residents have contracted the West Nile virus since a Cary man was diagnosed in September, according to the McHenry County Department of Health.

The five confirmed cases are the most in the county since 2007, health department spokeswoman Debra Quackenbush said. Those affected are between 61 to 70 years old and live in Lake in the Hills, Woodstock and Cary.

Three of the residents were hospitalized, but have since returned home, she said. Test results are also pending on several other residents suspected of having the virus.