Taenia pisiformis (1) Flashcards
1
Q
What are the intermediate hosts?
A
Rabbits
2
Q
Describe adults
A
Up to 2 m long
3
Q
Describe larvae
A
Cysticercus
In liver/peritoneum
4
Q
Describe eggs
A
Thick shelled
25-40 micro m
5
Q
Explain life cycle
A
Gravid taeniid proglottids shed from carnivore FH
Release eggs in environment - contain oncospheres
Oncospheres ingested by IH
- Enter wall of small intestine - Migrate to liver peritoneum - Develops to cysticercus - infective 2nd stage
FH ingests cysticercus by eating infected organ
Digested, scolex released, attaches to small intestine
Develops to adult
PPP: 56 days
6
Q
What is the site of infection?
A
Small intestine
7
Q
Describe the Pathogenesis
A
Nonpathogenic/ Asymptomatic
8
Q
How do you diagnose?
A
Eggs in fecal samples
9
Q
How do you treat and prevent?
A
Cestocidal drugs - kill adult tapeworm
Infection prevented by not feeding offal to FH
10
Q
What are the final hosts?
A
Dogs
Foxes
