Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Schematic representation of the human gastrointestinal tract showing its different compartments and the relative abundance of bacteria (a). b The relative abundance of the main microbial phyla detected in the adult fecal samples [12]. c The aggregate microbiota composition of the genus Lactobacillus as determined from adult fecal sample analysis [12]. d The aggregate microbiota composition of the genus Bifidobacterium as determined from adult fecal sample analysis [12]
