STUDY OF THE E STRAIN ISOLATED IN MADRID IN 1941. ITS ANTIGENIC PROPERTIES, ITS AVIRULENCE.
D000818:Animals; D000941:Antigens; D006168:Guinea Pigs; D000882:Haplorhini; D012106:Research; D012283:Rickettsia prowazekii; D013030:Spain; D014438:Typhus, Epidemic Louse-Borne
D000941:Antigens
EXPERIMENTAL LAB STUDY; GUINEA PIGS; MONKEYS; RICKETTSIA PROWAZEKII; SPAIN; TYPHUS