[In vitro study of antagonistic activity of bifidobacteria against Campylobacter and Escherichia coli causing gastroenteritis in children]. / Etude in vitro de l'antagonisme bactérien des bifidobactéries vis à vis des Campylobacter et Escherichia coli responsables de gastro-entérites infantiles.

Bifidobacteria represents the major constituents of the human intestinal microflora. It's a non mobile Gram (+) bacteria, which interest almost of the research about the relationships between the intestinal flora and human health. Bifidobacteria has an inhibition activity on the growth of the Campylobacter and E. coli G.E.I., in case of children gastro-intestinal infections by mixed cultivation in reconstituted infant milk adapted for the first age. This activity is the result of a group of mechanisms acting at the same time, it's probably the following: Competition of the nutrients indispensable for bacterial growth, action of the produced acid do not favorite the growth of the active pathogens germs (bactériocine) with acid pH.