Sepse por Staphylococus aureus resistente à meticilina adquirida na comunidade no sul do Brasil

methicillin-resistant staphylococcus aureus was initially described as a typical microorganism acquired in nosocomial infections. however, over recent years, community-acquired methicillin-resistant staphylococcus aureus has been a cause of skin and soft-tissue infections. serious infections such as pneumonia and sepsis can also occur. this report describes a case of sepsis in a child that was complicated by pneumonia secondary to soft tissue lesions that were due to community-acquired methicillin-resistant staphylococcus aureus in southern brazil. the patient was attended at the emergency unit with a history of injury caused by lower-limb trauma that evolved to cellulitis, pneumonia and sepsis.