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.
An inguinal hernia is the bulging of the small intestine into the inguinal canal in the groin. The inguinal canal is a tube-like structure in the lower abdomen on either side of the groin. About 20% of males suffer from inguinal hernia compared to 2% women.1.