ALL DEFINITIONSMpoxDefinitionMpox is a rare disease caused by infection with the mpox virus, which is in the same family of viruses as the smallpox virus. Mpox is less contagious than small pox and produces milder symptoms.Related SpecialistsShowing 3 of 6Scott RobertsMDThomas MurrayMD, PhDAnnette CameronMDMore Related SpecialistsRelated Fact SheetsMpox (Formerly Monkeypox)Related NewsShowing 3 of 4Family HealthFamily HealthFamily HealthMore Related NewsRelated DepartmentsShowing 3 of 53PediatricsGeneral PediatricsCardiovascular MedicineMore Related Departments