[Not Available].
D005858:Germany; D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D007114:Immunization / Q000266:history*; D012899:Smallpox / Q000266:history*; D014611:Vaccination / Q000266:history*; D014612:Vaccines / Q000266:history*
200 Jahre Pockenimpfstoff in Deutschland.