A totally bf 4 month old baby was hospitalized for 10 days with a severe urinary infection. The culture came back e coli. The doctors claim it probably came from the baby's stool. I am at a loss to explain this to the mother. She is pretty upset because she said that protection against these types of germs is the main reason she wanted to bf. Susan Nachman-Srebrnik, IBCLC Lactation Consultant Ranana, Israel