| sabin and wild polioviruses from apparently healthy primary school children in northeastern nigeria. | despite significant success of the global polio eradication initiative (gpei) in nigeria, afghanistan, india, pakistan, wild poliovirus still occurs due to persistently high proportions of under and unimmunized children. the study aimed at determining the type of poliovirus often excreted into the environment. four hundred nine fecal samples collected from apparently healthy school children aged 5-16 years in borno and adamawa states, northeastern nigeria, were tested for poliovirus by tissue cu ... | 2012 | 22170559 |