State Health Officials Announce Season’s Second Human Case of West Nile Virus in Massachusetts

On Monday, August 12, 2024, the Massachusetts Department of Public Health (DPH) announced the second human case of West Nile virus (WNV) in Massachusetts this year. The person is a male in his 70s who was exposed in Middlesex County in an area known to be at moderate risk. Learn more at DPH’s website.

WNV is usually transmitted to humans through the bite of an infected mosquito. Risk of WNV is currently at the Moderate level in Middlesex County, meaning that WNV is likely or has already occurred in the county. Learn more about how to protect against mosquito bites.