A common bacteria that causes strep throat (streptococcal pharyngitis), impetigo, other skin infections, rheumatic fever, scarlet fever, glomerulonephritis, and invasive fasciitis.treptococcus pyogenes.
Streptococcus pyogenes, also known as the flesh eating bacteria, is the most pathogenic bacterium in the whole genus (2). The name pyogenes comes from the word pyogenic, which is a classification for the streptococci that are associated with pus formation. Therefore, this bacterium is commonly called the beta-hemolytic group A streptococcus, or GAS. (2) A picture of this clearly shows how the organism grows. Electron micrograph of Streptococcus pyogenes by Maria Fazio and Vincent A. Fischetti, Ph.D. with permission. Streptococcus pyogenes is a species of bacteria. Like most other streptococci, it is clinically important in human illness. It is an infrequent, but usually pathogenic, part of the skin flora. It is the sole species of Lancefield group A and is often called group A streptococcus (GAS), because it displays streptococcal group A antigen on its cell wall. Group A streptococcal infection can cause illness, which typically produces small zones of beta-hemolysis, a complete destruction of red blood cells. S. pyogenes is the cause of many important human diseases, ranging from mild superficial skin infections to life-threatening systemic diseases. 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 (impetigo). Erysipelas and cellulitis are characterized by multiplication and lateral spread of S. pyogenes in deep layers of the skin Streptococcus pyogenes is not a bacteria that should be taken lightly. Many people carry the bacteria without incident, however it has the potential to cause both mild and severe diseases. Streptococcus pyogenes has claimed many lives, including that of Muppet's creator, Jim Henson. Characteristically, Streptococcus pyogenes is a Gram-positive facultative anaerobic bacterium. It is not motile, and does not produce spores. It occurs as long chains of cocci, and occasionally in pairs. Streptococcus pyogenes is classified as Group A streptococcus. Streptococcus pyogenes is the most common bacterial cause of sore throat.[6] A painful, red throat with white patches on your tonsils is characteristic of pharyngitis, otherwise known as strep throat. Characteristically, Streptococcus pyogenes is a Gram-positive facultative anaerobic bacterium. It is not motile, and does not produce spores. It occurs as long chains of cocci, and occasionally in pairs. Streptococcus pyogenes is classified as Group A streptococcus. Streptococcus pyogenes: A common bacteria that causes strep throat (streptococcal pharyngitis), impetigo, other skin infections, rheumatic fever, scarlet fever, glomerulonephritis, and invasive fasciitis.  Description and Significance. Streptococcus pyogenes is a gram-positive bacterium that usually grows in pairs or chains. It has been classified as a beta-hemolytic streptococcus because when cultured on a blood agar plate all the red blood cells are ruptured by the bacteria (1). Therefore, this bacterium is commonly called the beta-hemolytic group A streptococcus, or GAS. (2) A picture of this clearly shows how the organism grows. Electron micrograph of Streptococcus pyogenes by Maria Fazio and Vincent A. Fischetti, Ph.D. with permission. A ubiquitous organism, S pyogenes is the most common bacterial cause of acute pharyngitis, accounting for 15-30% of cases in children and 5-10% of cases in adults. During the winter and spring in temperate climates, up to 20% of asymptomatic school-aged children may be group A streptococcus carriers. In addition to infections of the upper respiratory tract and the skin, S pyogenes can cause a wide variety of invasive systemic infections. Along with Staphylococcus aureus, group A streptococcus is one of the most common pathogens responsible for cellulitis. The most common infection from Streptococcus pyogenes is impetigo, a superficial cutaneous infection common to children characterized by crusty legions and vesicles surrounded by a red border. Erysipelas-an acute infection and inflammation of the dermal layer of the skin. Streptococcus pyogenes. Introduction. Streptococcus pyogenes is a gram positive bacteria. It is a cocci or sphere shaped bacterium that does not produce spores. Acute Streptococcus pyogenes infections may present as pharyngitis (strep throat), scarlet fever (rash), impetigo (infection of the superficial layers of the skin) or cellulitis (infection of the deep layers of the skin). 
https://microbewiki.kenyon.edu/index.php/Streptococcus_pyogenes https://en.wikipedia.org/wiki/Streptococcus_pyogenes http://www.pyogenesgonewild.com/ http://www.pyogenesgonewild.com/ http://www.medicinenet.com/script/main/art.asp?articlekey=11271 https://microbewiki.kenyon.edu/index.php/Streptococcus_pyogenes http://emedicine.medscape.com/article/228936-overview http://legacy.earlham.edu/~stephse/Streptococcuspyogenes.htm http://www.textbookofbacteriology.net/streptococcus.html
what are the significance of Streptococcus pyogenes