Quantitative estimation of the rickettsial antigens in infected yolk sac membranes by complement fixation using a fifty per cent hemolysis technique.
D000941:Antigens; D003165:Complement System Proteins; D006461:Hemolysis; D055633:Immune System Phenomena; D008566:Membranes; D012281:Rickettsia; D015017:Yolk Sac
D000941:Antigens; D003165:Complement System Proteins
COMPLEMENT; RICKETTSIA