My 11 week old breast fed baby has had green stools on and off for a week. We did a stool lab and it came back with a high white blood cell count. Which means he is fighting an infection. What bacterias could be causing the infection? Otherwise he has no fever and is not vomiting. What should be our next step?
It is totally normal thing in infant.  Due to high peristaltic wave bills can't be absorbed, so it passes in stool. Watch for weight gain and do not watch babies.