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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 ]
Pinworm infection occurs worldwide, [10] and is the most common helminth (i.e., parasitic worm) infection in the United States and Western Europe. [18] In the United States, a study by the Center of Disease Control reported an overall incidence rate of 11.4% among people of all ages. [ 18 ]
Nematomorpha (sometimes called Gordiacea, and commonly known as horsehair worms, hairsnakes, [1] [2] [3] or Gordian worms) are a phylum of parasitoid animals superficially similar to nematode worms in morphology, hence the name. Most species range in size from 50 to 100 millimetres (2.0 to 3.9 in), reaching 2 metres (79 in) in extreme cases ...
microscopy of eyelash or eyebrow hair follicle, cellophane tape method (CTP), squeezing method, skin scrapings pandemic, worldwide Commensal, prolonged skin-to-skin contact Scabies: Sarcoptes scabiei: skin microscopy of surface scrapings worldwide skin-to-skin contact such as sexual activity and via sharing clothing or bedding Red mite ...
Elaeophora schneideri (arterial worm; carotid worm; cause of elaeophorosis, aka "filarial dermatitis" or "sorehead" in sheep; or "clear-eyed" blindness in elk) is a nematode which infests several mammalian hosts in North America. It is transmitted by horse-flies.
In the human host, Loa loa larvae migrate to the subcutaneous tissue, where they mature into adult worms in approximately one year, but sometimes up to four years. Adult worms migrate in the subcutaneous tissues at a speed of less than 1 cm/min, mating and producing more microfilariae. The adult worms can live up to 17 years in the human host. [5]
Metastrongyloidea are characterized as 2-cm-long, [9] slender, threadlike worms that reside in the lungs of the definitive host. [10] Angiostrongylus costaricensis is a closely related worm that causes intestinal angiostrongyliasis in Central and South America.
These worms occupy the lymphatic system, including the lymph nodes; in chronic cases, these worms can lead to the syndrome of elephantiasis. Loiasis a subcutaneous filariasis is caused by Loa loa (the eye worm). Mansonella streptocerca, and Onchocerca volvulus. These worms occupy the layer just under the skin. O. volvulus causes river blindness.
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