Two main species of Toxocara affect humans: Toxocara canis and Toxocara cati. Hosts include cats, dogs, foxes, coyotes, and wolves. These hosts harbor the nematodes in their guts, shedding the eggs in their feces. The embryonated eggs remain infectious for years outside the host. 5 июн. 2021 г.
How is Toxocara canis transmitted?
Adults and children can become infected by accidentally swallowing dirt that has been contaminated with dog or cat feces that contain infectious Toxocara eggs. Although it is rare, people can also become infected from eating undercooked meat containing Toxocara larvae.
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. Many species are cosmopolitan, whereas other occurs only in certain regions.
What are the Paratenic hosts of T. cati canis?
Humans are paratenic hosts for Toxocara spp. and eggs are found only in the feces of definitive hosts (cats and dogs).
Does Toxocara cati have an intermediate host?
Toxocara cati has an incubation period of 8 weeks after ingestion of eggs from the environment or larvae from intermediate hosts, while the faecal excretion of eggs following transmission via milk starts after 6–7 weeks.
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