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Group A streptococcal infections are a number of infections with Streptococcus pyogenes, a group A streptococcus (GAS). [1] S. pyogenes is a species of beta-hemolytic Gram-positive bacteria that is responsible for a wide range of infections that are mostly common and fairly mild. If the bacteria enters the bloodstream, the infection can become ...
The diagnosis of perianal cellulitis is made either through a rapid strep test or by swabbing the affected areas for a bacterial culture indicating infection by group A β-hemolytic streptococci. [ 1 ] [ 11 ] In order to confirm diagnosis of perianal streptococcal dermatitis, the anus and genitalia require examination followed by bacterial ...
The remaining nonenterococcal group D strains include Streptococcus gallolyticus, Streptococcus bovis, Streptococcus equinus and Streptococcus suis. Nonhemolytic streptococci rarely cause illness. However, weakly hemolytic group D beta-hemolytic streptococci and Listeria monocytogenes (which is actually a gram-positive bacillus) should not be ...
However, both Streptococcus dysgalactiae and the Streptococcus anginosus group can possess group A antigen as well. Group A streptococci, when grown on blood agar, typically produce small (2–3 mm) zones of beta-hemolysis, a complete destruction of red blood cells. The name group A (beta-hemolytic) Streptococcus is thus also used. [1]
Some clinical guidelines suggest that the cause of a sore throat is confirmed prior to prescribing antibiotic therapy and only recommend antibiotics for children who are at high risk of non-suppurative complications. [7] [8] A group A streptococcus infection can be diagnosed by throat culture or a rapid test:
illumigene Group B Streptococcus fully complies with the CDC guidelines for the detection of GBS and clinical studies have shown that broth enrichment, followed by testing with illumigene Group B ...
Chlamydia pneumoniae [1] is a species of Chlamydia, an obligate intracellular bacterium [2] that infects humans and is a major cause of pneumonia.It was known as the Taiwan acute respiratory agent (TWAR) from the names of the two original isolates – Taiwan (TW-183) and an acute respiratory isolate designated AR-39. [3]
A rapid strep test may assist a clinician in deciding whether to prescribe an antibiotic to a person with pharyngitis, a common infection of the throat. [1] Viral infections are responsible for the majority of pharyngitis, but a significant proportion (20% to 40% in children and 5% to 15% in adults) is caused by bacterial infection. [2]
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