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As many individuals are asymptomatic carriers of D. fragilis, pathogenic and nonpathogenic variants are proposed to exist.A study of D. fragilis isolates from 60 individuals with symptomatic infection in Sydney, Australia, found all were infected with the same genotype, [4] which is the most common worldwide, but differed from the genotype first described from a North American isolate and ...
The prodromal symptoms are fever, headache, and myalgia, which can be severe, lasting as long as 24 hours.After 1–5 days, typically, these are followed by diarrhea (as many as 10 watery, frequently bloody, bowel movements per day) or dysentery, cramps, abdominal pain, and fever as high as 40 °C (104 °F).
However, in poor countries treatment for severe infections is often out of reach and persistent diarrhea is common. [21] Dehydration is a common complication of diarrhea. [22] Severe dehydration in children may be recognized if the skin color and position returns slowly when pressed. [23]
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 ...
Urticaria pigmentosa (also known as generalized eruption of cutaneous mastocytosis (childhood type) [1]: 616 ) is the most common form of cutaneous mastocytosis. It is a rare disease caused by excessive numbers of mast cells in the skin that produce hives or lesions on the skin when irritated.
Perianal cellulitis, also known as perianitis or perianal streptococcal dermatitis, is a bacterial infection affecting the lower layers of the skin around the anus. [1] [2] [3] It presents as bright redness in the skin and can be accompanied by pain, difficulty defecating, itching, and bleeding.
Erythroderma is an inflammatory skin disease with redness and scaling that affects nearly the entire cutaneous surface. [ 1 ] [ 2 ] This term applies when 90% or more of the skin is affected. In ICD-10 , a distinction is made between "exfoliative dermatitis" at L26, and "erythroderma" at L53.9.
Pain can also be present. Dermatitis can occur anywhere on the skin, but is most common on the hands (22% of people), scattered across the body (18%), or on the face (17%). [5] The rash and other symptoms typically occur 24 to 48 hours after the exposure; in some cases, the rash may persist for weeks. [2]