title: The poxviruses: vaccinia and variola.
mesh_terms: D000818:Animals; D005128:Eye Diseases / Q000150:complications / Q000382:microbiology* / Q000628:therapy; D006801:Humans; D007634:Keratitis / Q000209:etiology / Q000382:microbiology; D012899:Smallpox / Q000628:therapy; D014615:Vaccinia / Q000150:complications / Q000628:therapy