>>7638914> You can not get a GI infection from your own GI bacteria. normal e. coli are actually not usually a pathogenFrom the related image:
"The human intestine provides a habitat that is rich in nutrients, permitting for the growth of over 500 different species of bacteria, with the highest concentration of bacteria found in the colon. In addition to bacteria, the human colon is frequently exposed to both pathogenic and non-pathogenic viruses. Normally, the bacteria found in the colon have a symbiotic relationship with their host and can even provide some protection against pathogens. However, some microbes that are normally or incidentally found in the colon are pathogenic or potentially pathogenic if they breech the host mucosal barrier."
Cancer Epidemiology, Biomarkers & Prevention. 2008 Nov; 17(11): 2970–2979.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2676114/"The inflammatory process that leads to abscess may begin with an abrasion or tear in the lining of the anal canal, rectum, or perianal skin and subsequent infection by Escherichia coli, staphylococci, or streptococci. Trauma may result from injections for treatment of internal hemorrhoids, enema-tip abrasions, puncture wounds from ingested eggshells or fish bones, or insertion of foreign objects."
Professional Guide to Diseases (2008) - Page 291
