Escherichia, often abbreviated as E., belongs to the genus of bacteria in the family of Enterobacteriaceae. This genus includes various species, with Escherichia coli (E. coli) being the most well-known and relevant species. E. coli is a versatile bacterium that occurs both in the environment and in the intestines of humans and animals. While some strains of E. coli are known to be pathogens causing food poisoning or infectious diseases, there are also strains that are considered probiotic and offer health benefits.