The Massachusetts Department of Agricultural Resources conducted aerial spraying for mosquitoes in some counties last month to help reduce the risk. The spraying has since been stopped because evening temperatures are too low to allow for effective aerial application, officials said.
EEE has been found in 400 mosquito samples this year, many of which are species that are capable of spreading the disease to humans.
The most recent outbreak in Massachusetts occurred from 2004 to 2006 and 2010 to 2012, with 22 human cases of EEE during both time periods.
Sourse: abcnews.go.com
