Papua New Guinea certified polio-free--complacency threatens dreams of eradication.
Siba
Peter Max
PM
D002568:Certification; D003140:Communicable Disease Control / Q000706:statistics & numerical data*; D014943:Global Health; D006801:Humans; D017589:Immunization Programs; D010219:Papua New Guinea / Q000453:epidemiology; D011051:Poliomyelitis / Q000453:epidemiology* / Q000517:prevention & control*; D011159:Population Surveillance; D014944:World Health Organization