Dracunculiasis.
D003140:Communicable Disease Control / Q000379:methods*; D004320:Dracunculiasis / Q000453:epidemiology / Q000517:prevention & control*; D006801:Humans; D009549:Nigeria / Q000453:epidemiology; D011320:Primary Health Care / Q000706:statistics & numerical data; D014881:Water Supply / Q000592:standards