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Scabies (/ ˈ s k eɪ b iː z, ˈ s k eɪ b i iː z /; [10] also sometimes known as the seven-year itch) [1] is a contagious human skin infestation by the tiny (0.2–0.45 mm) mite Sarcoptes scabiei, [1] [3] variety hominis. The word is from Latin: scabere, lit. 'to scratch'. [11] The most common symptoms are severe itchiness and a pimple-like ...
Sarcoptes scabiei (/sɑː r ˈkɒptiːz 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.
A lioness scratching herself. Itch originating in the skin is known as pruritoceptive, and can be induced by a variety of stimuli, including mechanical, chemical, thermal, and electrical stimulation, or infection. The primary afferent neurons responsible for histamine -induced itch are unmyelinated C-fibres.
Dermatophytosis. Dermatophytosis, also known as tinea and ringworm, is a fungal infection of the skin [2] (a dermatomycosis), that may affect skin, hair, and nails. [1] Typically it results in a red, itchy, scaly, circular rash. [1] Hair loss may occur in the area affected. [1] Symptoms begin four to fourteen days after exposure. [1]
Dermatographic urticaria is sometimes called "skin writing", as it is possible to mark deliberate patterns onto the skin. The condition manifests as an allergic-like reaction, causing a warm red wheal to appear on the skin. As it is often the result of scratches, involving contact with other materials, it can be confused with an allergic ...
Permethrin is a medication and an insecticide. [4][5] As a medication, it is used to treat scabies and lice. [6] It is applied to the skin as a cream or lotion. [4] As an insecticide, it can be sprayed onto outer clothing or mosquito nets to kill the insects that touch them. [5][7] Side effects include rash and irritation at the area of use. [6]
Mites which colonize human skin are the cause of several types of itchy skin rashes, such as gamasoidosis, [51] rodent mite dermatitis, [52] grain itch, [53] grocer's itch, [53] and scabies; Sarcoptes scabiei is a parasitic mite responsible for scabies, which is one of the three most common skin disorders in children. [54]
Margherita Tiburzi. Diacinto (or Giacinto) Cestoni (May 13, 1637 – January 29, 1718) was an Italian naturalist, biologist, botanist, entomologist. Born in Montegiorgio, he was self-taught. He lived and worked at Livorno where he led an apothecary next to the port. He studied insects, animals, plants and drugs.
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