title: Methicillin-resistant Staphylococcus lugdunensis carrying SCCmec type V misidentified as MRSA.
abstract: Staphylococcus lugdunensis is a rare cause of severe infections and clinical manifestations are similar to those related to S. aureus infection. We describe a hospital-acquired bacteremia due to methicillin-resistant Staphylococcus lugdunensis, misidentified as methicillin-resistant S. aureus. The oxacillin MIC was 16 µg/mL and the mecA gene and SCCmec type V were determined by PCR. Although treatment had been appropriated, the patient died after rapid progressive respiratory failure and another nosocomial sepsis. It is important not only to identify S. lugdunensis in view of its clinical course, but also to determine its susceptibility to oxacillin by detecting the mecA gene or its product.
authors.affiliation: Applied Microbiology and Fermentation Processes Laboratory, Instituto Federal de Educação, Ciência e Tecnologia do Rio de Janeiro, RJ, Brazil.
authors.forename: Eliezer Menezes
authors.initials: EM
authors.lastname: Pereira
authors.forename: Ricardo Pinto
authors.initials: RP
authors.lastname: Schuenck
authors.forename: Simone Aranha
authors.initials: SA
authors.lastname: Nouér
authors.forename: Kátia Regina Netto Dos
authors.initials: KR
authors.lastname: Santos
mesh_terms: D000368:Aged; D000900:Anti-Bacterial Agents / Q000494:pharmacology; D016470:Bacteremia / Q000175:diagnosis / Q000382:microbiology*; D001426:Bacterial Proteins / Q000235:genetics; D003428:Cross Infection / Q000175:diagnosis / Q000382:microbiology*; D005260:Female; D006801:Humans; D016106:Methicillin Resistance / Q000187:drug effects / Q000235:genetics*; D055624:Methicillin-Resistant Staphylococcus aureus; D010068:Oxacillin / Q000494:pharmacology; D013203:Staphylococcal Infections / Q000175:diagnosis / Q000382:microbiology*; D057787:Staphylococcus lugdunensis / Q000187:drug effects / Q000235:genetics*
chemical_list: D000900:Anti-Bacterial Agents; D001426:Bacterial Proteins; D010068:Oxacillin