Predisposing risk factors for community-associated methicillin-resistant staphylococcus aureus infection: a study in a teaching hospital

Community-acquired (CA) Methicillin-resistant Staphylococcus aureus (MRSA) infections occurs among healthy people or individuals with no identifiable healthcare-related predisposing risk factors. Communities all over the world with social and material deprivation have been significantly affected by the emergence of the condition since the end of the 20th century [1-7]. While the first documented cases of CA-MRSA infections occurred among Australian and Canadian aborigines in the early 1990s, infections that sharing the same genetical features than these first cases spread throughout the world. Particularly, in Brazil, the first report of CA-MRSA was similar to the Oceanian clones: two young individuals (23-year-old male and 34-yearold female who presented respectively skinand soft tissueassociated infections, and a male, 56 years old, presenting with septic arthritis were first documented who came from a city in the south of the country Porto Alegre) [8]. Currently, CA-MRSA infections are increasing within outcare departments in large metropolitan cities [1,7,9-11].