Trichuris trichiura

basic details.
human whipworm
my report

1. Trichuris trichiura Also called “human whipworm” , a Soil-Transmitted H elminth and next most common intestinal worm especially in urban disadvantage communities Trichuris trichiura is estimated to affect some 500 million people. Children aged 5 to 14 years are particullary vulnerable. Most cases occurs inMOIST REGIONS of Asia, Africa, Central and South America

2. MORPHOLOGY: Flesh colored or pinkish slender worms which are much smaller than ascaris The esophagus is characteristically embedded in glandular cells called STICHOCYTES The tail end of the female worm is straight and blunt while that of the male is characteristically curved Female: 3.5 to 5.5 cm Male: 3.0 to 3.5 cm The anterior three fifths of the worm consists of a fine, hair-like structure which forms the esophagus While the posterior two-fifths is thick and fleshy that contains the intestine and reproductive organs

3. Eggs The female fertilized worm produces: BARREL-SHAPED EGS WITH THICK, SMOOTH, BROWN EGG SHELLS AND TWO TRANSPARENT PLUGS PROTRUDING FROM BOTH POLES OF THE EGGS EACH FEMALE WHIPWORM CAN PRODUCE 7000 TO 10000 EGGS PER DAY A TOTAL OF OF OVER 60 MILLION EGGS BY A SINGLE WHIPWORM TO HARBOR OVER 1000 WORMS

4. Life cycle: Larvae undergo intracellular development in upper small intestines Adult worms attached to the cecum Eggs passed out with feces In ssoil : eggs embryonate (2-3 weeks) Embryonated eggs (infective stage) ingested by man Larvae hatch in intestine

5. Light infections are assymptomatic and without clinical significance The symptoms are due to worms unique mode of attachment to the wall of the large intestine where it feeds on intestinal tissues C hronic impairment should be suspected with diarrhea , hypoalbuminemia and IDA Anemia in trichiuris is due to ulceration of the intestine resulting from a heavy worm burden Heavy infection may lead to prolapse d of the anus and rectum

6. Diagnosis: 1. DFS 2. KATO THICK