[Causes of relative increase of cases of recurrent and exanthematous typhus during the recent years].
D006801:Humans; D012061:Relapsing Fever / Q000453:epidemiology*; D014438:Typhus, Epidemic Louse-Borne / Q000453:epidemiology*
RELAPSING FEVER/epidemiology; TYPHUS/epidemiology
K voprosu o prichine otnositel'nogo uvelicheniia sluchaev povtornogo sypnogo tifa v poslednie gody.