A method for increasing the infectivity of yolk-sac cultures of the rickettsiae of epidemic and murine typhus, and South African tick-bite fever.
D001907:Boutonneuse Fever; D006801:Humans; D012281:Rickettsia / Q000208:ethnology* / Q000254:growth & development*; D012290:Rickettsial Vaccines; D013987:Ticks; D014437:Typhus, Endemic Flea-Borne; D014438:Typhus, Epidemic Louse-Borne; D015017:Yolk Sac
D012290:Rickettsial Vaccines; C028280:typhus vaccine
RICKETTSIA/cultures; TYPHUS/vaccine