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.
For inguinal, femoral, umbilical, and incisional hernias, symptoms may include: 1  An obvious swelling beneath the skin of the abdomen or the groin; it may disappear when you lie down and may be tender. 2  A heavy feeling in the abdomen that is sometimes accompanied by constipation or blood in the stool. An obvious swelling beneath the skin of the abdomen or the groin; it may disappear when you lie down and may be tender. 2  A heavy feeling in the abdomen that is sometimes accompanied by constipation or blood in the stool. 3  Discomfort in the abdomen or groin when lifting or bending over.