why foods are infected by escherichia coli
Any food that has been in contact with raw meat can also become infected. Other foods that can be infected with E. coli include: 1  Raw milk or dairy products. 2  Bacteria can spread from a cow's udders to its milk. 3  Check the labels on dairy products to make sure they contain the word pasteurized..4  This means the food has been heated to destroy bacteria.ther strains of E. coli can cause urinary tract infections or other infections. You get an E. coli infection by coming into contact with the feces, or stool, of humans or animals. This can happen when you drink water or eat food that has been contaminated by feces.