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Abstract
Among 274 neonates born at the maternity services of an urban hospital in India, 36.1% of the infants shed rotavirus in feces (as detected by ELISA) by 72 h of life. The excretion rate increased to 70.3% among the 120 infants who stayed for 5 days or more at the hospital. Diarrhoeal symptoms of mild and self-limited nature were observed only in 19.2% of the rotavirus excretors, the remaining being asymptomatic. Among the 98 infants who received supplement feeds, 49% acquired rotavirus infection as against 24.7% of the 150 exclusively breast fed infants (p<0.001). Viral RNA in the feces of all rota positive infants showed the same electropherotype, indicating infection from a common source. The mean percentage rotavirus inhibitory activity of cord sera in the infected and non-infected infants was 50.2±21.7 and 56.6±19.2 respectively (p>0.05), suggesting that cord blood antibodies do not offer significant protection against neonatal rotavirus infection.