Homogeneity of Rickettsia prowazeki E strain egg culture as to the capacity to increase virulence in passages on white mouse lungs.
D000818:Animals; D001431:Bacteriological Techniques; D003470:Culture Media; D008168:Lung / Q000276:immunology*; D051379:Mice; D012283:Rickettsia prowazekii / Q000145:classification / Q000276:immunology*; D014774:Virulence
D003470:Culture Media