Group A streptococcal infection (GAS) is caused by the streptococcus pyogenes, the most prevalent form of Group A (beta-hemolytic) Streptococcus. This infection is a frequent illness that may result in impetigo, scarlet fever, or sore throat. Furthermore, it may produce a toxic shock condition identical to that produced by the bacterium Staphylococcus aureus, commonly called golden staph, in rare situations. Group A streptococcal infection is also one of the causes of necrotizing fasciitis (flesh eating disease), a rare condition. It may sometimes cause major problems like rheumatic fever, which might harm the kidneys and heart.