Streptococcal Infections - Causes

What caused your streptococcal infection?

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What diseases are caused by group A streptococcal infection?

There are a number of diseases that GAS organisms can cause. The predominant diseases are as follows:

  • Pharyngitis (strep throat, Fig. 2)
  • Scarlet fever
  • Rheumatic fever
  • Glomerulonephritis
  • Impetigo
  • Cellulitis (almost anywhere on the body; see erysipelas below)
  • Wound infections
  • Bone infections
  • Sinusitis
  • Pneumonia
  • Meningitis
  • Necrotizing fasciitis (sometimes termed a flesh-eating disease)
  • Toxic shock syndrome
  • Puerperal fever (fever after pregnant female delivers)
  • Erysipelas (cellulitis of the skin, often the facial skin)

This list is not exhaustive as GAS bacteria have been found in many other disease processes. In addition, many of the diseases listed above may also be caused by many other pathogens, although the first three listed (pharyngitis, scarlet fever, and rheumatic fever) are predominantly caused by GAS. Some investigators consider most of these diseases as complications of an initial GAS skin or throat infection.

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