HEMAGGLUTINATION STUDIES OF VARIOLA AND VACCINIA VIRUSES.
D000818:Animals; D002642:Chick Embryo; D006384:Hemagglutination; D007106:Immune Sera; D011817:Rabbits; D012106:Research; D012899:Smallpox; D014615:Vaccinia; D014616:Vaccinia virus; D012901:Variola virus
D007106:Immune Sera
CHICK EMBRYO; EXPERIMENTAL LAB STUDY; HEMAGGLUTINATION; IMMUNE SERUMS; RABBITS; SMALLPOX VIRUS; VACCINIA; VACCINIA VIRUS