What is Stool sample from a patient shows the following. How do humans get this infection? and explain in detail?
Ans. A. Ingestion with foodTrichuris Trichiura/Whip Worma. Habitat: large intestine, caecum, appendixb. The definitive and the only host in its life cycle is man.c. Egg: barrel shaped, bile stained, mucus plugs at each pole, unsegmented ovumd. Life cycle: Egg - develop in moist soil (2 weeks) - embryonated egg - ingested - larvae released - migrate to caecum - develop into adult worm - fertilization - egg in stool (unembryonated).e. Clinical features: often asymptomatic. Heavy infections may result in abdominal pain, weight loss, bloody or mucoid diarrhea resembling IBD. Massive infections may result in rectal prolapse, iron deficiency anaemia and acute appendicitisf. Laboratory diagnosisi. Stool examinationii. Sigmoidoscopy: "coconut cake rectum"