Progress in the control of yellow fever in Africa.
D000349:Africa / Q000453:epidemiology; D006801:Humans; D014944:World Health Organization; D015004:Yellow Fever / Q000453:epidemiology / Q000517:prevention & control*; D022341:Yellow Fever Vaccine; D015005:Yellow fever virus / Q000276:immunology
D022341:Yellow Fever Vaccine