Maternal measles antibodies (MMA) are actively transferred in mother-infant pairs during third trimester of pregnancy. Gestational age (GA) affects the levels of MMA such that longer GA may result in infants starting out with high levels of MMA. To determine the influence of GA on the loss of MMA of newborn infants in North-Eastern, Nigeria, a prospective study was conducted on newborn infants at Maiduguri. Sera were collected at birth and at six months of age. Enzyme linked immunosorbent assay (ELISA) was used to measure MMA while GA was determined using the last menstrual period, ultrasound...