The appearance of a community-acquired methicillin-resistant Staphylococcus aureus (CA-MRSA) is a increasingly important problem. We describe the case of a child suffering a CA-MRSA osteomyelitis complicated with a non-necrotizing pneumonia. The fast resolution of the pulmonary infection contrasts with the poor evolution of the septic bone. We emphasise the importance of correct surgical drainage to clear the infection. We review the literature on this emergent pathogen.