Laboratory surveillance for wild and vaccine-derived polioviruses, January 2003-June 2004.
D014943:Global Health; D006801:Humans; D007753:Laboratories / Q000458:organization & administration / Q000592:standards; D011051:Poliomyelitis / Q000453:epidemiology* / Q000517:prevention & control; D017955:Poliovirus / Q000302:isolation & purification*; D023321:Poliovirus Vaccines; D018571:Sentinel Surveillance; D014944:World Health Organization
D023321:Poliovirus Vaccines