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Echinococcus granulosus, also called the hydatid worm or dog tapeworm, is a cyclophyllid cestode that dwells in the small intestine of canids as an adult, but which has important intermediate hosts such as livestock and humans, where it causes cystic echinococcosis, also known as hydatid disease. The adult tapeworm ranges in length from 3 mm to ...
Tapeworm members of the fish tapeworm. Cats are also a less suitable final host for the fish tapeworm (diphyllobothrium latum). It grows in cats up to 1.5 m. long and 2 cm wide. The fish tapeworm requires two intermediate hosts: in the first , the procercoid, which is infectious to mammals, forms in the abdominal cavity and muscle of fish.
Then, in 1766, Pierre Simon Pallas predicted that these hydatid cysts found in infected humans were larval stages of tapeworms. [51] [52] A few decades afterward, in 1782, Goeze accurately described the cysts and the tapeworm heads, while in 1786 E. granulosus was accurately described by Batsch.
The origin of these parasites based on host-parasite co-evolution comparisons was North America or Asia, depending on whether the ancestral definitive hosts were canids or felids. Echinococcus oligarthrus and Echinococcus vogeli are basal in this genus. [6] The genus is a sister to the genus Taenia from which it diverged more than 10 million ...
Echinococcus multilocularis, the fox tapeworm, is a small cyclophyllid tapeworm found extensively in the northern hemisphere. E. multilocularis, along with other members of the Echinococcus genus (especially E. granulosus ), produce diseases known as echinococcosis .
Feline disease refers to infections or illnesses that affect cats. They may cause symptoms, sickness or the death of the animal. Some diseases are symptomatic in one cat but asymptomatic in others. Feline diseases are often opportunistic and tend to be more serious in cats that already have concurrent sicknesses.