Intestinal failure: Pathophysiological elements and clinical diseases

Table 1 Normal Flora in Humans’ GI Tract

	Stomach	Jejunum	Ileum	Feces
Total bacterial count	0-103	0-105	103-107	1010-1012
Aerobic facultative or anaerobic bacteria
Enterobacteria	0-102	0-103	102-106	104-1010
Streptococci	0-103	0-104	102-106	105-1010
Staphylococci	0-102	0-103	102-105	104-107
Lactobacilli	0-103	0-104	102-105	106-1010
Fungi	0-102	0-102	102-103	102-106
Anaerobic bacteria	0	0	0	0
Bacteroids	Rare	0-102	103-107	1010-101
Bifidobacteria	Rare	0-103	103-105	108-1012
Gram-positive cocci1	Rare	0-103	102-105	108-1011
Clostridia	Rare	Rare	102-104	106-1011
Eubacteria	Rare	Rare	Rare	109-1012

¹Includes peptostreptococcus and peptococcus.