.Mpox (monkeypox).elombatd@who.int.Tue, 20/08/2024 – 09:08.Find out more about Mpox (monkeypox) Mpox (monkeypox) is actually a contagious illness caused by the monkeypox virus. It can result in a very painful breakout, increased lymph nodules as well as fever. Most individuals completely recover, however some get quite sick.