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[5] Since 2000, Flubendazole-treated grit has increasingly been laid out on a landscape-scale across many UK grouse -shooting moors by gamekeepers in an attempt to reduce the impact on bird numbers from strongyle worm .
English: Enterobiasis Enterobius vermicularis Life cycle of Enterobius vermicularis Eggs are deposited on perianal folds. Self-infection occurs by transferring infective eggs to the mouth with hands that have scratched the perianal area. Person-to-person transmission can also occur through handling of contaminated clothes or bed linens.
The period of time from swallowing eggs to the appearance of new eggs around the anus is 4 to 8 weeks. [2] Some people who are infected do not have symptoms. [1] The disease is spread between people by pinworm eggs. [1] The eggs initially occur around the anus and can survive for up to three weeks in the environment. [1]
The pinworm (species Enterobius vermicularis), also known as threadworm (in the United Kingdom, Australia and New Zealand) or seatworm, is a parasitic worm.It is a nematode (roundworm) and a common intestinal parasite or helminth, especially in humans. [7]
Whole blood with microfilaria worm, giemsa stain. L. loa worms have a simple structure consisting of a head (which lacks lips), a body, and a blunt tail. The outer body of the worm is composed of a cuticle with three main layers made up of collagen and other compounds which aid in protecting the nematodes while they are inside the digestive system of their host.
[2] The Strongyloides stercoralis nematode can parasitize humans. The adult parasitic stage lives in tunnels in the mucosa of the small intestine. The genus Strongyloides contains 53 species, [3] [4] and S. stercoralis is the type species. S. stercoralis has been reported in other mammals, including cats and dogs.
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[5] The eggs hatch in the small intestine, then move into the wall of the small intestine and develop. On reaching adulthood, the thinner end (the anterior of the worm) burrows into the large intestine, the thicker (posterior) end projecting into the lumen, where it mates with nearby worms. The females can grow to 50 mm (2.0 in) long. [3]