Septic arthritis is most often monoarticular but may affect more than one joint. Bacteria responsible for joint infection vary with age group, similar to the organisms producing meningitis. Haemophilus influenzae, Staphylococcus aureus, and gram-negative bacteria predominate in early childhood; S. aureus, pneumococci, and streptococci in later childhood; and S. aureus, pneumococci, streptococci, and gonococci in […]