A hard frost has now occurred in all communities across the state. People are no longer at risk of mosquito-borne illness in Massachusetts in 2019.
Routine mosquito testing is typically reported June-October. DPH will conduct early season surveillance activities to assess the risk of WNV and EEE in 2020.
2019 Arbovirus results summary
|Mosquito samples positive||Animals positive||Humans positive|
|Last updated:||November 14, 2019|