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Bacterial Flora of the Human Small Intestine

Bacterial Flora of the Human Small Intestine The literature regarding the normal bacterial flora of the human gastrointestinal tract has recently been reviewed by Rosebury1 and Donaldson,2 and can be summarized as follows: the stomach or upper small intestine may be sterile or contain a sparse bacterial population; those bacteria found in the upper portion of the gastrointestinal tract are considered to be contaminants from the mouth and respiratory tract, and seldom exceed counts of 105 bacteria per milliliter of intestinal content; although bacteria in the terminal ileum are often of the fecal type, about 50% of specimens are sterile; an entirely different situation prevails in the colon which is more stagnant and supports a large and varied bacterial population. Intestinal Bacteria Our interest in human small intestinal flora arose from research into the lethal role of intestinal bacteria and their products during intestinal strangulation obstruction.3,4 These studies have been concerned with normal http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png JAMA American Medical Association

Bacterial Flora of the Human Small Intestine

JAMA , Volume 196 (13) – Jun 27, 1966

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Publisher
American Medical Association
Copyright
Copyright © 1966 American Medical Association. All Rights Reserved. Applicable FARS/DFARS Restrictions Apply to Government Use.
ISSN
0098-7484
eISSN
1538-3598
DOI
10.1001/jama.1966.03100260063018
Publisher site
See Article on Publisher Site

Abstract

The literature regarding the normal bacterial flora of the human gastrointestinal tract has recently been reviewed by Rosebury1 and Donaldson,2 and can be summarized as follows: the stomach or upper small intestine may be sterile or contain a sparse bacterial population; those bacteria found in the upper portion of the gastrointestinal tract are considered to be contaminants from the mouth and respiratory tract, and seldom exceed counts of 105 bacteria per milliliter of intestinal content; although bacteria in the terminal ileum are often of the fecal type, about 50% of specimens are sterile; an entirely different situation prevails in the colon which is more stagnant and supports a large and varied bacterial population. Intestinal Bacteria Our interest in human small intestinal flora arose from research into the lethal role of intestinal bacteria and their products during intestinal strangulation obstruction.3,4 These studies have been concerned with normal

Journal

JAMAAmerican Medical Association

Published: Jun 27, 1966

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