[From smallpox immunization to chemo-immunity].
D000937:Antigen-Antibody Reactions; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D012900:Smallpox Vaccine / Q000266:history*; D014611:Vaccination / Q000266:history*
D012900:Smallpox Vaccine
A himlöoltástól a kemoimmunitásig.