title: Inhibition of typhus and spotted fever by intradermal inoculation of antiorgan or certain normal sera.
mesh_terms: D035843:Biomedical Research; D006801:Humans; D012282:Rickettsia Infections; D012373:Rocky Mountain Spotted Fever / Q000517:prevention & control*; D017282:Tick-Borne Diseases; D014438:Typhus, Epidemic Louse-Borne / Q000517:prevention & control*; D014611:Vaccination
keywords: ROCKY MOUNTAIN SPOTTED FEVER/prevention; TYPHUS/prevention