Roundworm life cycle A roundworm is a type of nematode (ascarid) that reproduces in the intestinal tract of its host. Dogs are the host for Toxocara canis, and cats are the host for Toxocara cati. Those species are present in every part of the world, due to the global population of dogs and cats. 27 февр. 2019 г.
Are roundworms species specific?
Roundworms are intestinal parasites. They are common in a number of different animal species, including dogs and cats. Each animal has a roundworm that is specific to that species. There is a roundworm specific to humans, but this parasite is rarely found in developed countries.
What are the hosts of roundworms?
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.
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.
More useful articles on a similar topic 👇
What animals do roundworms live in?How do cats get botulism from garbage?
