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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.
Infants and children who have scabies may be tired and irritable from lack of sleep, since scratching at night can keep them awake, and unlike adults, children often get blisters or large nodules ...
The theory gained much support, as it was known to be more common on light gritty soils. In 1890 however, Roland Thaxter isolated a microbe that could cause common scab lesions, naming it Oospora scabies. [4] Over the years, this species was renamed several times, now being known as Streptomyces scabies. [5]
Streptomyces scabiei (also wrongly named Streptomyces scabies) [1] is a streptomycete bacterium species found in soils around the world. [2] Unlike most of the 500 or so Streptomyces species it is a plant pathogen causing corky lesions to form on tuber and root crops as well as decreasing the growth of seedlings.
The Winogradsky column is a simple device for culturing a large diversity of microorganisms. Invented in the 1880s by Sergei Winogradsky , the device is a column of pond mud and water mixed with a carbon source such as newspaper (containing cellulose ), blackened marshmallows or egg-shells (containing calcium carbonate ), and a sulfur source ...
Wikipedia does not generally approve of articles that serve as guides to perform procedures, however, many medical educators who wish to disseminate information regarding new and effective techniques to manage contaminated airways have sought a template upon which to build their simulation instructions, and this guide to the technique simply ...
The scabies mite Sarcoptes scabiei var. hominis goes through four stages in its lifecycle: egg, larva, nymph, and adult. Upon infesting a human host, the adult female burrows into the stratum corneum (outermost layer of skin), where she deposits two or three eggs per day. These oval eggs are 0.1–0.15 mm (0.0039–0.0059 in) long and hatch as ...
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]