[Should typhoid-paratyphoid vaccination be obligatory?].
D006801:Humans; D010284:Paratyphoid Fever / Q000276:immunology*; D014435:Typhoid Fever / Q000276:immunology*; D014436:Typhoid-Paratyphoid Vaccines; D014611:Vaccination
D014436:Typhoid-Paratyphoid Vaccines
PARATYPHOID FEVERS/immunology; TYPHOID/immunology