Escherichia coli (abbreviated as E. coli) are a large and diverse group of bacteria. Although most strains of E. coli are harmless, others can make you sick…very, very sick…as in dead.
Listeria, Salmonella and something with no name but lots of numbers called STEC O104:H4 are pretty scary things, but the chances of encountering them are far more unlikely than our lovely friend E. coli.
Wash your hands, never eat in a place with bad sanitation, and avoid unwashed produce! Seriously!