The Massachusetts Department of Public Health has detected 42 human cases of West Nile virus. The risk of human WNV disease is elevated across the Commonwealth. Mosquitoes that carry WNV will remain active until the first hard frost. Now is the time to use personal protective measures like repellents and appropriate clothing to avoid mosquito bites. For more information please visit  

* One WNV Human Case was exposed Out-of-State

Mosquito Samples Positive Animals Positive Humans Positive
WNV 579 3 42*
EEE Virus 2 0 0