Monkeypox Update | Environmental Health & Safety | UMass Amherst
Monkeypox is a rare disease caused by infection with the monkeypox virus. Monkeypox virus is part of the same family of viruses that causes smallpox. Monkeypox symptoms are similar to smallpox symptoms, but milder, and monkeypox is rarely fatal. It can cause flu-like symptoms and a rash, sometimes the rash can be quite painful.