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Strep throat is caused by the bacteria Streptococcus pyogenes, or group A streptococcus. "These bacteria are contagious and can be spread through droplets when someone coughs or sneezes or through ...
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. [9] [10] Common symptoms include fever, sore throat, red tonsils, and enlarged lymph nodes in the front of the neck.
How is it transmitted? Strep throat is usually passed on via respiratory droplets that infected people spread when they talk, cough or sneeze, the CDC says. People can get infected if they breathe ...
Group A Streptococcus (Group A Strep or Strep A) bacteria can cause many different infections. The bacteria are commonly found in the throat and on the skin, and some people have no symptoms.
Infections typically begin in the throat or skin. The most striking sign is a strawberry-like rash. Examples of mild S. pyogenes infections include pharyngitis (strep throat) and localized skin infection . Erysipelas and cellulitis are characterized by multiplication and lateral spread of S. pyogenes in deep layers of the skin.
Streptococci can also be transmitted through fomites and can persist in the environment for varying durations, especially in organic material under moist, cool conditions. For instance, S. suis can remain viable for approximately a week in pig feces at 25 °C (77 °F) and up to six weeks in carcasses at 4 °C (39 °F).
The best way to know if you have strep throat is to get tested. A test can be conducted by swabbing the throat and running a test. The rapid test will tell you in a few minutes if you have it.
The noninvasive infections tend to be more common and less severe. The most common of these infections include streptococcal pharyngitis (strep throat) and impetigo. [13] Scarlet fever is another example of Group A noninvasive infection. The invasive infections caused by group A beta-hemolytic streptococci tend to be more severe and less common.
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