West Africa prepares for the final battle against polio.
D000354:Africa, Western / Q000453:epidemiology; D006801:Humans; D011051:Poliomyelitis / Q000453:epidemiology / Q000276:immunology / Q000517:prevention & control*; D023321:Poliovirus Vaccines / Q000008:administration & dosage; D014944:World Health Organization
D023321:Poliovirus Vaccines