Group A Streptococcal diseases: Symptoms and treatment

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Symptoms of Group A streptococcal diseases

Symptoms of non-invasive infection with Group A streptococcus (GAS) include:

  • fever
  • sore, painful throat
  • mild skin infections, such as:
    • rash
    • sores
    • bumps
    • blisters

Invasive Group A streptococcal infections (iGAS) are rare and can cause severe symptoms, such as:

  • trouble breathing (pneumonia)
  • breakdown of the skin and connective tissues (necrotizing fasciitis)
  • fever, unsafe drop in blood pressure, vomiting and diarrhea (toxic shock syndrome)

If you become ill

Seek medical attention if you think you have a GAS infection (non-invasive or invasive). Only your health care provider can diagnose GAS disease.

Antibiotics for Group A streptococcal diseases

Antibiotics are used to treat both invasive and non-invasive GAS diseases. Early treatment may make symptoms less severe or prevent more serious complications. If you are diagnosed with a GAS infection, you are advised to stay home for 24 hours after starting antibiotics. This will help avoid making other people sick.

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