[Prospective study of rotavirus infection in a maternity unit. Demonstration of a nosocomial infection].

Eighty-eight children born at the maternity hospital in Saint-Germain-en-Laye between May 24 and June 7, 1983 were followed clinically, with a special supervision concerning stools, weight curves and the way of feeding. Stool samplings looking for Rotavirus were performed in all the children and their mothers, at the 3rd and 6th days of life. No mother was found with Rotavirus infection. In neonates, Rotavirus excretion was significantly related to a slow down in weight curves and the occurrence of diarrhea. All rotaviruses had the same electrophoretype. Breast-feeding had an undeniable protective effect.