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.
The type of hernia you have depends on where it is and how it occurs: 1 â¢ Ventral (incisional) hernias can occur through a scar after surgery in the abdomen.â¢ Umbilical hernia appears as a bulge around the belly button.â¢ Inguinal hernia is a bulge in the groin (more common in men).Hernias are common.