Studies on Measles Vaccination in Nigerian Children

Abstract

Children given measles vaccine.t Children given poliomyelitis vaccine.the number of children participating in the trials, including the defaulters and those known to be immune.Reports have been obtained from the mothers of all except 15 of the defaulters.The reasons for failure to attend were generally a misunderstanding about the dates for reporting, or, because the child was well, the mother did not consider it necessary to come back.There is no reason to suppose that the children who failed to