Clinical Immunity after Neonatal Rotavirus Infection

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Abstract
To determine whether rotavirus infection in newborn babies conferred immunity to postneonatal rotavirus infection, we studied 81 babies at birth and kept them under clinical and serologic study for three years. During the first 14 days of life, 44 of the infants excreted rotavirus, and 37 did not. Fifty-five per cent of those with neonatal infection and 54 per cent of those without it had rotavirus infection during the next three years.