[On the epidemiology of typhoid and paratyphoid with special reference to recognition of carriers (From studies in the administrative area of Dusseldorf)].
D006579:Heterozygote; D006801:Humans; D010284:Paratyphoid Fever / Q000453:epidemiology*; D014435:Typhoid Fever / Q000453:epidemiology*; D014436:Typhoid-Paratyphoid Vaccines
D014436:Typhoid-Paratyphoid Vaccines
PARATYPHOID FEVERS/epidemiology; TYPHOID/epidemiology