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At about 5–15 mm, the worms are only about one-tenth the length of roundworms, have a hook-shaped angled front end (hence the name "hookworm") and a large mouth capsule with cutting plates. Females of A. caninum release eggs about 65×40 μm in size, which already have 4-10 furrowing stages at deposition. They are oval and thin-shelled and ...
These can be categorized into three groups; cestodes, nematodes and trematodes.Examples include: Acanthocephala; Ascariasis (roundworms); Cestoda (tapeworms) including: Taenia saginata (human beef tapeworm), Taenia solium (human pork tapeworm), Diphyllobothrium latum (fish tapeworm) and Echinococcosis (hydatid tapeworm)
Toxocara canis (T. canis, also known as dog roundworm) is a worldwide-distributed helminth parasite that primarily infects dogs and other canids, but can also infect other animals including humans. [ 1 ] [ 2 ] The name is derived from the Greek word toxon 'bow, quiver' and the Latin word caro 'flesh'. [ 3 ]
Before the worms can be treated, however, the dog's heart, liver, and kidney function must be evaluated to determine the risks of treatment. Usually, the adult worms are killed with an arsenic-based compound. The currently approved drug in the US, melarsomine, is marketed under the brand name Immiticide. [30]
Infection with the kidney worm dioctophyma renale is only found in southern Europe, Asia and North America and is also rare in cats there, the main host being mink. The kidney worm is the largest parasitic nematode with a length of up to one meter and shows a twofold host change: first intermediate hosts are Oligochaeta, second freshwater fish ...
The name of the group Nematoda, informally called "nematodes", came from Nematoidea, originally defined by Karl Rudolphi in 1808, [22] from Ancient Greek νῆμα (nêma, nêmatos, 'thread') and -ειδἠς (-eidēs, 'species'). It was treated as family Nematodes by Burmeister in 1837. [22]
Dipylidium life cycle. Dipylidium caninum, also called the flea tapeworm, double-pored tapeworm, or cucumber tapeworm (in reference to the shape of its cucumber-seed-like proglottids, though these also resemble grains of rice or sesame seeds) is a cyclophyllid cestode that infects organisms afflicted with fleas and canine chewing lice, including dogs, cats, and sometimes human pet-owners ...
There is a naming convention which applies to all helminths: the ending "-asis" (or in veterinary science: "-osis") is added at the end of the name of the worm to denote the infection with that particular worm. [citation needed] For example, Ascaris is the name of a type of helminth, and ascariasis is the name of the infection caused by that ...