Monkeypox About Monkeypox Monkeypox is a rare disease caused by infection with the monkeypox virus. Monkeypox virus belongs to the same family of viruses as the variola virus, the virus responsible for smallpox. Symptoms of monkeypox are similar to those of smallpox but are mild, and monkeypox is rarely fatal. Monkeypox is not related to chickenpox. Monkeypox was discovered in…