Life cycle of Taenia solium
The worm passes it's life cycle in two host;
1. Definitive host (man- adult worms)
2. Intermediate host (pig- larval stage)
When person get infected by ingestion of undercooked pork containing larvae which become adult in small intestine in human.
Fertilized proglottids containing egg are passed out in feces.
Animal become infected by swallowing these egg.
After ingestion egg reach in intestine of pig and hatch out as larvae which penetrate stomach wall and carried into systemic circulation and enter into muscular tissue.
They grow and develop into cysticercocis stage, human being infected by eating uncooked pork containing larvae inside alimentary canal of man, scolex attaches to gut wall by its suckers and then develops into adult worm.
The cycle is repeated;
1. Man get infected by ingestion of undercooked pork with containing egg.
2. Larvae released from eggs into human intestine.
3. Converted adult worms (male and female) in human intestine.
4. Female worm released egg, which pass through stool.
5. Infected by pig, consume these egg on infected human feces.
6. Egg reach intestine of pig and hatch out into larvae.
7. From muscle tissue larvae penetrate into stomach wall of pig and enter in circulation.
8. Larva reaches in skeletal muscle tissue.
9. In muscle larvae grow and develop into mature larvae.
0 Comments