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Infectious agents

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

Staphylococcus aureus is the most common agent.

Also:

  • Streptococcus pyogenes
  • pneumococcus
  • Haemophilus influenzae, especially in those under three years
  • gonococcus
  • gram negative rods, such as E. coli, Pseudomonas

Septic arthritis may be primary, or secondary to osteomyelitis of an adjacent bone.

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