Laboratory surveillance for wild and vaccine-derived polioviruses, January 2002-June 2003.
D014943:Global Health; D006801:Humans; D007753:Laboratories / Q000706:statistics & numerical data*; D011051:Poliomyelitis / Q000453:epidemiology / Q000517:prevention & control*; D017955:Poliovirus / Q000145:classification / Q000302:isolation & purification; D023321:Poliovirus Vaccines; D012703:Serotyping; D014773:Virology
D023321:Poliovirus Vaccines