What are the hosts for specific round worms?

【Expert answer】

Created: 2022-03-11 13:42:11

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Many roundworms have a complicated life cycle that includes both main hosts (large mammals such as humans or pigs) and intermediate hosts (small animals such as snails). Therefore, some roundworm infections occur as a result of eating uncooked contaminated food. The eggs may survive for years in moist soil. 30 нояб. 2017 г.

Are roundworms host specific?

Roundworm species of veterinary importance For each species the predilection site(s) and most affected hosts are mentioned. Some species are quite host-specific; other species can infect a wide range of hosts.

What is the specific definitive host organism of the roundworm?

Human is the definitive host. There is no intermediate host. Tramission is human - feces - human. Adult ascarids live in the small intestines.

Do roundworms need an intermediate host?

Direct life cycle. Nematode can infect fish directly without the need for an intermediate host.

How do parasites choose their host?

Each parasite species finds and enters its host using a different series of cues. For example, different species of schistosomes enter the human skin using different recognition sequences. The various recognition strategies may reflect adaptations to distinct ecological conditions of transmission.

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