Poliomyelitis spreads in west and central Africa.
Ahmad
Khabir
K
D000350:Africa, Central / Q000453:epidemiology; D000354:Africa, Western / Q000453:epidemiology; D002648:Child; D004196:Disease Outbreaks; D004340:Drug Contamination / Q000706:statistics & numerical data; D006801:Humans; D011051:Poliomyelitis / Q000191:economics / Q000453:epidemiology / Q000276:immunology / Q000517:prevention & control*; D023321:Poliovirus Vaccines / Q000009:adverse effects* / Q000191:economics / Q000627:therapeutic use*; D014944:World Health Organization
D023321:Poliovirus Vaccines