Aggregative Adherence Fimbriae I (AAF I) causes aggregation of the bacterial cells. These aggregate on small intestinal cells and cause mucous secretion which produces a biofilm. Enteroaggregative heat stabile toxin is an STa like toxin, and plasmid encoded toxin can also be present.
1 Umbilical hernia is a bulge around the belly button. It occurs when the muscle around the belly button does not close completely after birth.  Inguinal hernia is a bulge in the groin. It is more common in men.
A hernia is a bulge caused by tissue pushing through the wall of muscle that's holding it in. Most hernias are abdominal hernias. This means they happen in the belly and groin areas. You may have a hernia if you can feel a soft lump in your belly or groin or in a scar where you had surgery in the past.