Which one of the following is the infective stage of Ascaris lumbricoides?

Question

Which one of the following is the infective stage of Ascaris lumbricoides? (A) Unsegmented egg (B) Egg with first stage larva (C) Egg with second stage larva (D) Free third stage larva

Tardigrade Admin · Accepted Answer

Ascaris has no intermediate host and man acquires infection by directly ingesting Ascaris eggs containing the infective second stage rhabditoid larva with contaminated food or water.

Q. Which one of the following is the infective stage of Ascaris lumbricoides?

Unsegmented egg

Egg with first stage larva

Egg with second stage larva

Free third stage larva

Ascaris has no intermediate host and man acquires infection by directly ingesting Ascaris eggs containing the infective second stage rhabditoid larva with contaminated food or water.