A rare but serious viral illness affecting humans and some primates.

Current Situation: An Ebola outbreak is ongoing in parts of the DRC and Uganda. As of May 2026, No cases have been reported in Massachusetts or elsewhere in the U.S., and public risk remains low. State health authorities are prepared to act if a case emerges.

Transmission

Animal-to-human: Typically, via contact with infected wildlife (e.g., fruit bats, primates).