Increase in Invasive Group A Strep Infections, 2022–2023

CDC is looking into an increase in invasive group A strep (iGAS) infections among children in the United States. iGAS infections include necrotizing fasciitis and streptococcal toxic shock syndrome.

For Clinicians

Group A Streptococcus (group A strep, Streptococcus pyogenes) can cause both noninvasive and invasive disease, as well as nonsuppurative sequelae.

Learn more about the etiology, clinical features, diagnosis and treatment options, prognosis and complications, and prevention of some of these infections below.