Immunizing potency against variola of strains of vaccinia virus seeds used in India for the preparation of vaccine lymph.
D006801:Humans; D007114:Immunization; D007194:India; D012899:Smallpox / Q000276:immunology*; D014611:Vaccination; D014612:Vaccines; D014616:Vaccinia virus; D012901:Variola virus
D014612:Vaccines
SMALLPOX/immunology