Hello, * The issue of your baby sounds to be more in relation with malabsorption syndrome from the intestine problem as of congenital origin, rather than mere infection of intestine or colon. * Series of evaluations are mandatory to focus where the defect lies as liver enzymes, metabolic pathway or biochemical process as of fat indigestion with fat globules in the stool is striking feature here. * Kindly consult baby to an expert with experience of such disorders dealing with the enzyme issues of congenital origin. Hope I have answered your query. Let me know if I can assist you further. Take care Regards, Dr Ivan R. Rommstein, General Surgeon