[Some characteristics of the epidemiology and prevention of El'-Tor cholera].
D002771:Cholera / Q000453:epidemiology / Q000517:prevention & control; D003140:Communicable Disease Control; D004196:Disease Outbreaks; D006801:Humans; D014586:USSR
O nekotorykh osobennostiakh épidemiologii i profilaktiki kholery El'-Tor.