From the Centers for Disease Control and Prevention. Certification of poliomyelitis eradication--Western Pacific Region, October 2000.
D001208:Asia / Q000453:epidemiology; D001315:Australia / Q000453:epidemiology; D006801:Humans; D011051:Poliomyelitis / Q000453:epidemiology* / Q000517:prevention & control; D014944:World Health Organization