Massachusetts Town's heightened vigilance against deadly mosquito virus in Massachusetts quarantine was declared due to the detection of a horse infected with Eastern horse and sephtis you for other cities in the region have received warnings about the need to avoid the peak of mosquito the first case of the in Massachusetts since 2020 which affected a person at the age of 80 residents of Massachusetts should use repellent from mosquitoes and avoid standing water around the house the family of an infected person has received a warning about the seriousness of the disease and the importance of prevention an infected person was not bitten by mosquitoes but experienced symptoms after contact with the virus survivors often encounter constant disability full recovery is rarely possible