title: [The current problems in improving the vaccinal prophylaxis of typhus].
authors.forename: V A
authors.initials: VA
authors.lastname: Pshenichnov
authors.forename: V V
authors.initials: VV
authors.lastname: Mikhaĭlov
mesh_terms: D006801:Humans; D012283:Rickettsia prowazekii / Q000276:immunology*; D012290:Rickettsial Vaccines / Q000276:immunology*; D012426:Russia; D014438:Typhus, Epidemic Louse-Borne / Q000517:prevention & control*; D014613:Vaccines, Attenuated / Q000276:immunology; D014614:Vaccines, Synthetic / Q000276:immunology
chemical_list: D012290:Rickettsial Vaccines; D014613:Vaccines, Attenuated; D014614:Vaccines, Synthetic