where is enterococcus faecalis found in the body
Enterococcus faecalis Enterococcus faecalis – formerly classified as part of the group D Streptococcus system – is a Gram-positive, commensal bacterium inhabiting the gastrointestinal tracts of humans and other mammals.[1] Like other species in the genus Enterococcus, E. faecalis can cause life-threatening infections in humans, especially in the nosocomial (hospital) environment, where the naturally high levels of antibiotic resistance found in E. faecalis contribute to its pathogenicity.[1] E. faecalis has been frequently found in root canal-treated teeth in prevalence values ranging from 30% to 90% of the cases.[2] Root canal-treated teeth are about nine times more likely to harbor E. faecalis than cases of primary infections.[3]
Small intestine Food from the stomach is allowed into the duodenum through the pylorus by a muscle called the pyloric sphincter.
Small intestine Absorption of the majority of nutrients takes place in the jejunum, with the following notable exceptions:
Escherichia coli Escherichia coli (/ˌɛʃɪˈrɪkiə ˈkoʊlaɪ/;[1] also known as E. coli) is a Gram-negative, facultative aerobic, rod-shaped, coliform bacterium of the genus Escherichia that is commonly found in the lower intestine of warm-blooded organisms (endotherms).[2][3] Most E. coli strains are harmless, but some serotypes can cause serious food poisoning in their hosts, and are occasionally responsible for product recalls due to food contamination.[4][5] The harmless strains are part of the normal microbiota of the gut, and can benefit their hosts by producing vitamin K2,[6] and preventing colonization of the intestine with pathogenic bacteria, having a symbiotic relationship.[7][8] E. coli is expelled into the environment within fecal matter. The bacterium grows massively in fresh fecal matter under aerobic conditions for 3 days, but its numbers decline slowly afterwards.[9]