[Smallpox immunization expedition around the world, 170 years ago (Francisco Xavier de Balmis)].
D005101:Expeditions; D049671:History, 18th Century; D049672:History, 19th Century; D006801:Humans; D007114:Immunization / Q000266:history*; D008800:Mexico; D012899:Smallpox / Q000266:history*; D012900:Smallpox Vaccine / Q000266:history; D013020:South America; D013030:Spain; D014611:Vaccination / Q000266:history
D012900:Smallpox Vaccine
Világkörüli himlöoltó-expedíció 170 évvel ezelött