Risk factors for acquisition of Methicillin-resistant Staphylococcus aureus among patients from a burn unit in Brazil.

Methicillin-resistant Staphylococcus aureus (MRSA) is an important agent of colonization and infection in burn units. In order to identify risk factors for MRSA acquisition in a Brazilian burn unit, we performed two retrospective studies. In the first ("cohort" study), 175 patients who were not colonized with MRSA on admission were followed to assess risk factors for MRSA acquisition.

Paracoccidioidomycosis: an unusual presentation in a young girl disclosing an unnoted HIV-infection.

The association of paracoccidioidomycosis with AIDS is apparently less frequent than expected. The authors present an unusual case of paracoccidioidomycosis in a 13-year-old female student which was later found to be the first opportunistic infection in the course of the patient's HIV-infection. The clinical presentation followed an accidental incised wound on the palmar region initially described as a 'sporotrichotic-chancre'.

Risk factors for recovery of imipenem- or ceftazidime-resistant pseudomonas aeruginosa among patients admitted to a teaching hospital in Brazil.

Background: The prevalence of resistance to imipenem and ceftazidime among Pseudomonas aeruginosa isolates is increasing worldwide.

Objective: Risk factors for nosocomial recovery (defined as the finding of culture-positive isolates after hospital admission) of imipenem-resistant P. aeruginosa (IRPA) and ceftazidime-resistant P.