Question

Infective larva of Ancylostoma is called

• A. Rhabditiform
• B. Second stage juvenile
• C. Embryonated larva
• D. Filariform larva

Answer 1

The correct option is D Filariform larva

• Ancylostoma duodenale is a species of the roundworm genus Ancylostoma. It is a parasitic nematode worm and commonly known as the Old World hookworm. It lives in the small intestine of hosts such as humans, cats, and dogs, where it is able to mate and mature

• Life Cycle: Eggs are passed in the stool The number 1, and under favorable conditions (moisture, warmth, shade), larvae hatch in 1 to 2 days. The released rhabditiform larvae grow in the feces and/or the soil The number 2, and after 5 to 10 days (and two molts) they become filariform (third-stage) larvae that are infective The number 3. These infective larvae can survive 3 to 4 weeks in favorable environmental conditions.

So, the correct answer is 'Filariform larva'.