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Sarcoptes scabiei (/sɑːrˈkɒptiːz skeɪˈbiːaɪ/ Traditional English pronunciation of Latin) or the itch mite is a parasitic mite found in all parts of the world that burrows into skin and causes scabies. Humans become infested by Sarcoptes scabiei var. hominis; [1] other mammals can be infested with different varieties of the mite.
In their larval stage, they attach to various animals, including humans, and feed on skin, often causing itching. These relatives of ticks are nearly microscopic, measuring 400 μm (1/60 of an inch) and have a chrome-orange hue. [9] [10] There is a marked constriction in the front part of the body in the nymph and adult stages.
These symptoms can be present across most of the body or just in certain areas such as the wrists, between fingers, or along the waistline. [2] The head may be affected, but this is typically only in young children. [2] The itch is often worse at night. [2] Scratching may cause skin breakdown and an additional bacterial infection in the skin. [2]
Trombicula, known as chiggers, red bugs, scrub-itch mites, or berry bugs, are small arachnids [2] (eight-legged arthropods) in the Trombiculidae family. In their larval stage, they attach to various animals and humans, then feed on skin, often causing itching and trombiculosis . [ 3 ]
Bed bugs: appendages, neck, exposed skin usually not Low red itchy welts, usually several together resembling rash, slow to develop and can last weeks. Hair Lice: pubic area or scalp usually not Infested area intensely itchy, with red welts at bite sites. See pediculosis. Larval ticks: Anywhere on body, but prefer covered skin, crevices.
Demodex folliculorum is a microscopic mite that can survive only on the skin of humans. [2] [3] Most people have D. folliculorum on their skin.Usually, the mites do not cause any harm, so are considered an example of commensalism rather than parasitism; [4] but they can cause disease, known as demodicosis.
Acariasis is a term for a rash, caused by mites, sometimes with a papillae (pruritic dermatitis) or papule (papular urticaria), and usually accompanied by a hive and severe itching sensations. An example of such an infection is scabies or gamasoidosis .
T. cruzi is commonly spread to humans and other mammals by the kissing bug's bite wound and the bug's infected feces. [5] The disease may also be spread through blood transfusion , organ transplantation , consuming food or drink contaminated with the parasites, and vertical transmission (from a mother to her baby). [ 1 ]
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