TAENIA SOLIUM
The adult worms of T. solium reside or inhabit the upper jejunum. Infection has worldwide distribution.
Adult worm measures about 3 meters in length. The globular scolex has rostellum with 2 rows of hooklets. There are <1000 proglottids. Gravid proglottid liberates about 30,000-50,000 eggs.
Life Cycle
Embryonated eggs passed with stool are ingested by pig and the embryo is released. It penetrates the intestinal wall and is carried by vascular channels to all parts of the body. After a period of 2-3 months of development the encysted larval stage called cysticerci or bladder worm occurs in the striated muscles of the tongue, neck, trunk brain, eye, and the nervous system. The cysticercus survives for 5 years. Humans become infected by eating pork containing larvae, cysticercus cellulosae. When improperly cooked cysticercus infected meat is eaten by man, the scolex remains undigested and attaches itself to the intestinal wall and chain of proglottids begin to grow to adult worm.
Clinical Manifestations
Resembles that of T. saginata infection.
Diagnosis
Demonstration of eggs in stool specimen.
Prevention:
♦ Treatment of infected persons.
♦ Thorough cooking of pork and proper processing
♦ Proper disposal of human excreta (good hygiene/sanitation).
INSTAGRAM
Hiç yorum yok:
Yorum Gönder