A Bacterial Genus That is Found in Large Numbers in the Intestinal

Question

A bacterial genus that is found in large numbers in the intestinal tract of breast-fed infants is
A)Bacteroides.
B)Bifidobacteria.
C)Escherichia.
D)Doderlein's bacillus.

Accepted Answer

Bifidobacteria are commonly found in large numbers in the intestinal tract of breast-fed infants. They are responsible for fermenting human milk oligosaccharides, which aids in the development of the infant's gut microbiome and immune system. Bacteroides can also be present in the infant gut, but in smaller numbers. Escherichia is a common gut bacterium in adults, but may not be present in high numbers in breast-fed infant guts. Doderlein's bacillus is a type of lactic acid bacteria found in the vaginal microbiome.