Toxocara

Question 1

Unembryonated egg

Answer 1

Uninfected, fresh egg. Must develop larvae before it can become infective

Question 2

Prepatent period

Answer 2

4-5 weeks

Question 3

Spontaneous expulsion

Answer 3

Occurs around 6 weeks of age

Question 4

E/S Antigen Function

Answer 4

Spread over the larval cuticle. When they are ready to migrate, they sluff the cuticle off, leave it behind as a disguise for the host’s immune system.

Question 5

Paratenic Host

Answer 5

This host is not essential for the completion of the life cycle. In this type of host there is no parasite development