Rubella, measles and poliomyelitis: need to re-examine immunization programme in Eastern Nigeria.
D000914:Antibodies, Viral / Q000032:analysis; D002648:Child; D005260:Female; D006801:Humans; D007114:Immunization; D008297:Male; D008457:Measles / Q000276:immunology*; D009549:Nigeria; D010865:Pilot Projects; D011051:Poliomyelitis / Q000276:immunology*; D012409:Rubella / Q000276:immunology*
D000914:Antibodies, Viral