where is the most bacteria found in the human body
Human microbiota The gut flora has the largest numbers of bacteria and the greatest number of species compared to other areas of the body.[6] In humans the gut flora is established at one to two years after birth, and by that time the intestinal epithelium and the intestinal mucosal barrier that it secretes have co-developed in a way that is tolerant to, and even supportive of, the gut flora and that also provides a barrier to pathogenic organisms.[19][45]
Bacterial capsule The capsule—which can be found in both gram negative and gram-positive bacteria—is different to the second lipid membrane – bacterial outer membrane, which contains lipopolysaccharides and lipoproteins and is found only in gram-negative bacteria. When the amorphous viscid secretion (that makes up the capsule) diffuses into the surrounding medium and remains as a loose undemarcated secretion, it is known as slime layer.