What is a notable feature of Cryptosporidium oocysts when they are passed in faeces?
Correct answer: B. They are usually infective immediately
- A. They require a snail host first
- B. They are usually infective immediately
- C. They must sporulate inside muscle
- D. They mature only after a tick bite
Explanation
Cryptosporidium oocysts are generally fully sporulated and infective when excreted, allowing direct faecal oral transmission. They do not require an intermediate snail, tick, or tissue maturation stage.
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About Veterinary Parasitology
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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