title: Variola minor. Observations and experiences in Staffordshire, England, during 1966.
mesh_terms: D002644:Chickenpox / Q000175:diagnosis; D003937:Diagnosis, Differential; D004739:England; D005076:Exanthema / Q000175:diagnosis; D006801:Humans; D012899:Smallpox / Q000175:diagnosis / Q000453:epidemiology* / Q000517:prevention & control / Q000628:therapy; D014615:Vaccinia / Q000276:immunology; D012901:Variola virus