Enterococcus faecalis (E. faecalis) is a species of enterococci bacteria that normally lives in your gastrointestinal (GI) tract and can also be found in the oral cavity and vaginal tract. Although E. faecalis usually isn't harmful to the human body, it can become an opportunistic pathogen—causing disease when a person's immune defenses are low. Escherichia coli (E. coli) is a bacterium that normally lives in the intestines of people and animals.Certain types can cause an intestinal infection. It can lead to severe, potentially life For example, several studies utilized a deliberate instillation of saline into the urethra/bladder (i.e., intravesical administration) with a particular strain of Escherichia coli. Although this intervention can be considered a probiotic, it fails to satisfy the contingency of probiotics as being orally, vaginally, or rectally administered Bottom line. Bacteria begin to die at 149°F (65°C), but boiling water for one minute is still a good precaution. The optimal temperature to kill bacteria in food depends on the food type E. coli and Salmonella are two major foodborne pathogens frequently isolated from varied surfaces, such as hard-to-reach areas that are not cleaned regularly (e.g. underside of conveyor belts, and Overview. Acidophilus (Lactobacillus acidophilus), a bacterium found in the mouth, intestine and vagina, is used as a probiotic. Probiotics are good bacteria that are either the same as or very similar to the bacteria that are already in your body. Each type of probiotic supplement — and each strain of each type — can work in different ways. Lactobacillus Lactobacillus is one of many families of “good bacteria.” These microbes live in our mouths and intestines. They help to prevent the overgrowth of harmful bacteria. A common form is called Lactobacillus acidophilus. It helps our body to maintain a normal balance of good bacteria. Tk9O.