Massachusetts has first human EEE case in 6 years, state health officials say A human case of Eastern equine encephalitis has been confirmed in Massachusetts, the first in the state in six years, according to the Massachusetts Department of Public Health. The DPH said laboratory testing confirmed the EEE virus infection in a man older than 60 from southern Plymouth County. This is the first human case of EEE in Massachusetts since 2013. As a result, state health officials have raised the risk level to critical in nine southeastern Massachusetts communities. The communities on the critical risk list are Carver, Lakeville, Marion, Middleborough, Rochester and Wareham in Plymouth County and Acushnet, Freetown and New Bedford in Bristol County. “Today’s news is evidence of the significant risk from EEE and we are asking residents to take this risk very seriously,” said Public Health Commissioner Monica Bharel, MD.