Osteomyelitis due to Kingella kingae infection.

A case of osteomyelitis due to Kingella kingae is presented to illustrate the insidious onset and indolent course typical of bone infections caused by this organism. The frequently negative result obtained with Gram's stain and the fastidious nature of the organism makes diagnosis difficult. Initial therapy with an aminopenicillin such as ampicillin in addition to antimicrobial drugs for Staphylococcus aureus should be effective in resolving bone and joint infections in children.