Orthopox viruses include many species isolated from non-human mammals, such as Camelpox virus, Cowpox virus, Ectromelia virus (Mousepox virus), Monkeypox virus, Raccoonpox virus, Taterapox virus (African gerbil), Vaccinia virus (no natural reservoir), Buffalopox virus, Rabbitpox virus, Variola virus (Humans, Smallpox), Volepox virus, Skunkpox virus, and Uasin Gishu disease virus (African horses).