Question

Tracheal route of migration is found in
(A) Toxocara canis
(B) Toxascaris leonina
(C) Ascaris suum
(D) Parascaris equorum
Choose the correct answer from the options given below:

• A. (A), (B) and (D) only.
• B. (A), (C) and (D) only.
• C. (A), (B), (C) and (D).
• D. (B), (C) and (D) only.

Hint:

Remember that Toxascaris leonina is the unique exception among common domestic animal ascarids as it has no migratory phase outside the digestive tract. Eliminating (B) from the options immediately points to the correct answer.

Answer 1

The Correct Option is B