How do babies contract e coli?

E coli are every: Where. E coli are part of our enviornment and are present in many foods and tap water.

Orally: E coli is one of many germs that normally live in the intestine of animals & humans. Its presence does not always mean an infection as it can live quietly without causing problems. It is present in nature, on objects & is introduced to the mouth on contaminated fingers.Some aggressive e coli strains do cause disease & are acquired the same way.