BOSTON (September 17, 2018) - The Massachusetts Department of Public Health (DPH) and the Boston Public Health Commission (BPHC) today announced the 12th human case of West Nile virus (WNV) in the state this year and the fifth case in Suffolk County, which includes Boston. The most recent case is a man in his 50s from Suffolk County who is currently hospitalized. He became ill on September 11.
``Labor Day is often considered to be the unofficial end of summer,” said DPH State Epidemiologist Dr. Catherine Brown. “But it is not the end of the mosquito season. September is still the peak of transmission season and additional cases of WNV infection are likely to occur. Risk from West Nile virus will continue until the first hard frost.”
“This patient became ill less than a week ago, indicating that West Nile virus is actively being transmitted from mosquitoes to people,” said Dr. Jenifer Jaeger, Director of BPHC’s Infectious Disease Bureau. “That’s why it is important that people in greater Boston and elsewhere continue using insect repellents, covering exposed skin, and moving indoors when mosquitos are biting.’’
In 2017, there were six human cases of WNV infection identified in Massachusetts