Which stage of Strongyloides is generally infective to a susceptible host?
Correct answer: C. L3 filariform larva
- A. L1 rhabditoid larva
- B. Adult male
- C. L3 filariform larva
- D. Unembryonated egg
Explanation
The L3 filariform larva is the infective stage of Strongyloides and may penetrate the skin or be ingested. The L1 larva is a feeding stage and is not the usual infective form.
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Covers protozoa, helminths and arthropods that infect domestic animals, including their morphology, life cycles, hosts, transmission and clinical effects. Questions connect parasite identification with diagnosis, prevention and treatment, and distinguish endoparasites from ectoparasites and definitive hosts from intermediate hosts.
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