Outbreak news. Poliomyelitis in Nigeria and West/Central Africa.
D000350:Africa, Central / Q000453:epidemiology; D000354:Africa, Western / Q000453:epidemiology; D004196:Disease Outbreaks; D006801:Humans; D009549:Nigeria / Q000453:epidemiology; D011051:Poliomyelitis / Q000453:epidemiology* / Q000821:virology