Vaccination by scarification with 17D yellow fever vaccine prepared at Yaba, Lagos, Nigeria.
D006801:Humans; D009549:Nigeria; D014611:Vaccination; D014612:Vaccines; D015004:Yellow Fever / Q000517:prevention & control*; D022341:Yellow Fever Vaccine
D014612:Vaccines; D022341:Yellow Fever Vaccine
VACCINES AND VACCINATION; YELLOW FEVER/prevention and control