Streptococcus pyogenes

• Also commonly referred to as Group A Streptococcus

Presentations

• Skin and soft tissue infections, including necrotizing fasciitis
• Upper and lower respiratory tract infections
• Bacteremia without a focus
• Septic arthritis and osteomyelitis
• Pelvic infections, including postpartum endometritis
• Many other foci

Prognosis

• Highest risk of streptococcal toxic shock syndrome (TSS) or death
  • Necrotizing fasciitis (50% and 50%)
  • Pneumonia (30% and 30%)
  • Bacteremia (15% and 25%)