Taenia saginata

Presenting short overview of Taenia saginata.

1. Taenia Saginata Usman Ayub Department Medical Lab Technology

2. Kingdom Animalia Phylum Platyhelminthese Class Cestoda Order Cyclophyllidea Family Taeniidae Genus Taenia Species T.Saginata Scientific Classification

3. Taenia saginata commonly known as the beef tape worm It is intestinal parasite of cattle and human Causing taeniasis in human Cattle are the intermediate host Humans are definitive host General characteristic

4. Adult worms live in small intestine of their definitive host Larval stage found in intermediate host tissue Eggs are diagnostic stage Habitat:

5. Morphology

6. Sucker

7. Larvae cysticerci are approximately 7.5-10mm wide Adults, length of ~5 meter, consisting of 1000 proglottids It body is flattend dorso ventrally and segmented It is entirely covered by a tegument Consist three portion scolex,neck and strobila The scolex has four suckers but no hooks The scolex is approximately 2mm in diameter Morphology

8. The rest of body proper is called strobila The chain of numerous body segment called proglottids T.saginata have no digestive system,mouth,anus or digestive tract It take nutrients from the host through it teguments They have completely male and female reproductive system

9. T.Saginata are cosmopolitans Geographic Distribution

10. The disease is common in Africa,and some of Eastern Europe,the philippines,and latin America Found any where where beef is eaten The total global infection is estimated to be between 40 and 60 billion Epidemiology

11. Life cycle

12. T.saginata infection is asymptomatic In high infection results weight loss Dizziness,Abdominal pain,diarrhoea Headaches, nausea Constipation, loss of appetite Chronic indigestion Symptoms

13. Microscopy . Proglottids or eggs can diagnosed in feces The eggs of T.saginata and T.solium are similar the ELISAs(enzyme linked immunosorbent assays) and PCR can be used to differentiate When cysts presents in brain CT scan(computed tomography) are used X-ray may used Serologic tests Ziehal-Neelsen stain can be used Diagnostic Tests

14. It take about 5 to 12 weeks to mature in the human intestine Incubation period

15. In humans it is ingestion of under cooked beef containing the larval stage Transmission

16. Taenasisis is easily treated with praziquantel (5-10 mg/kg single dose) Niclosamide(adults and children over 6 year,2g single dose) Albendazole is also highly effective for treatment of cattle infection Treatment

17. The best way to prevent taeniasis is to make sure meat is cooked thoroughly Freezing to -5℃ for 4 days -15℃ for 3 days -24℃ for 1 day to kill larvae as will Prevention