Escherichia coli is normally found in the intestine of most animals, including humans, with most strains harmless, and even some considered probiotic, but others causes food poisoning. In the digestive tract, E. coli species produce vitamin K, which is useful for our health.
Problems can arise, however, when for some reason, E. coli from the colon makes its way to the vagina or urinary tract, where it causes infection. Most urinary tract infections are caused by E. coli, and E. coli colonisation in the vagina is known as aerobic vaginitis, despite E. coli being an anaerobic bacteria.
E. coli and E. faecalis are often found together wreaking havoc, as they support one another’s lifestyles.
E. coli is a very well-studied bacteria.
Family: Enterobacteriaceae
Most strains of E. coli are harmless, but some produce Shiga toxins (STEC), which is responsible for food poisoning. These toxin-producing strains can be found in raw or undercooked meat, raw milk, and contaminated vegetables.
Best growing temperature is 37°C, and prefers greater alkalinity/lesser acidity.
