title: Inactivated epidemic typhus vaccine. Observations on potency assay methods.
mesh_terms: D000818:Animals; D000917:Antibody Formation; D000941:Antigens / Q000032:analysis*; D003168:Complement Fixation Tests; D006168:Guinea Pigs; D007115:Immunization Schedule; D007274:Injections, Intraperitoneal; D007275:Injections, Intravenous; D008722:Methods; D051379:Mice; D009500:Neutralization Tests; D014438:Typhus, Epidemic Louse-Borne / Q000517:prevention & control*; D014612:Vaccines
chemical_list: D000941:Antigens; D014612:Vaccines