Streptococcus pyogenes, Group A


See 'Additional Information'
See 'Additional Information'

General Information

Gram positive cocci in chains, beta-hemolytic

Reservoir is human skin and oropharynx/mucous membranes.

Person-to-person transmission.

Occasionally foodborne.

Most common manifestations are:

  •  Tonsillopharyngitis ("Strep throat")

  •  Skin infections (impetigo, erysipelas, cellulitis)

Other invasive infections:

  • Bacteremia

  • Endocarditis

  • Necrotizing fasciitis

  • Meningitis

  • Toxic shock syndrome

  • Pneumonia

  • Other sterile space infections

Post-infectious immunologically mediated phenomena such as glomerulonephritis and rheumatic fever.

Scarlet fever.

May need Contact Precautions if draining wound present.

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