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.

Group A Streptococcal (GAS) Disease

Physician examining young patient

Bacteria called group A Streptococcus (group A strep) can cause many different infections.

The best way to protect yourself from group A strep infection is to practice good hygiene, like washing your hands often.

Información en español: Estreptococos del Grupo A

Diseases Caused by Group A Strep

Learn about some of these infections, including symptoms, risk factors, treatment options, and how to prevent them.