Progress towards poliomyelitis eradication, Chad, 1996-1999.
D002596:Chad / Q000453:epidemiology; D006801:Humans; D007114:Immunization; D009123:Muscle Hypotonia / Q000453:epidemiology; D010243:Paralysis / Q000453:epidemiology; D011051:Poliomyelitis / Q000453:epidemiology / Q000517:prevention & control*; D011055:Poliovirus Vaccine, Oral / Q000008:administration & dosage; D011159:Population Surveillance; D014944:World Health Organization
D011055:Poliovirus Vaccine, Oral