.Mpox (monkeypox).elombatd@who.int.Tue, 20/08/2024 - 09:08.Learn more about Mpox (monkeypox) Mpox (monkeypox) is an infectious condition caused by the monkeypox virus. It may cause a very painful breakout, enlarged lymph nodules as well as high temperature. Lots of people fully recoup, yet some acquire quite ill.