Human cases of West Nile virus (WNV) confirmed in Bay County. Human cases of West Nile virus (WNV) confirmed in Bay County. A ninth person in Massachusetts has contracted the potentially fatal Eastern equine encephalitis (EEE) virus. Tests confirmed a man in his 70s from Essex County contracted the virus, according to the state Department of Public Health. The health department confirmed Michigan’s fifth case of West Nile virus (WNV) in a patient from Bay County
