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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 ...
Rosenbach 1884. Streptococcus pyogenes is a species of Gram-positive, aerotolerant bacteria in the genus Streptococcus. These bacteria are extracellular, and made up of non-motile and non-sporing cocci (round cells) that tend to link in chains. They are clinically important for humans, as they are an infrequent, but usually pathogenic, part of ...
Streptococcal pyrogenic exotoxin. Streptococcal pyrogenic exotoxins also known as erythrogenic toxins, are exotoxins secreted by strains of the bacterial species Streptococcus pyogenes. [1][2] SpeA and speC are superantigens, which induce inflammation by nonspecifically activating T cells and stimulating the production of inflammatory cytokines ...
Scarlet fever, also known as scarlatina, is an infectious disease caused by Streptococcus pyogenes, a Group A streptococcus (GAS). [3] It most commonly affects children between five and 15 years of age. [1] The signs and symptoms include a sore throat, fever, headache, swollen lymph nodes, and a characteristic rash. [1]
Streptococcal pharyngitis, also known as streptococcal sore throat (strep throat), is pharyngitis (an infection of the pharynx, the back of the throat) caused by Streptococcus pyogenes, a gram-positive, group A streptococcus. [10][11] Common symptoms include fever, sore throat, red tonsils, and enlarged lymph nodes in the front of the neck.
Treatment: There is a range of ... a.k.a. scarlet fever, occurs from the Group A streptococcus bacteria of a strep throat ... The bacteria releases a toxin that causes a bright red blotchy rash ...
Streptolysin O (SLO; slo), is a bacterial toxin that has four protein domains which is known to make the plasma membranes in animal cells permeable. It does this by creating pore complexes within the membrane by first binding a monomer to the cholesterol found in the target membrane and then forming an oligomeric transmembrane pore. [6]
Streptococcus mutans is a facultatively anaerobic, gram-positive coccus (round bacterium) commonly found in the human oral cavity and is a significant contributor to tooth decay. [1] [2] It is part of the "streptococci", an informal general name for all species in the genus Streptococcus. The microbe was first described by James Kilian Clarke ...