Epidemiological study of secondary bloodstream infections: The forgotten issue.

Objective: Secondary bacteraemia infections (SBI) are poorly studied. We analyse the epidemiology of nosocomial SBI, potential risk factors and mortality of affected patients.

Methods: Prospective study of patients with bacteraemia from 2009 to 2014 in a tertiary hospital.

Risk factors associated with carbapenemase-producing Klebsiella pneumoniae fecal carriage: A case-control study in a Spanish tertiary care hospital.

Asymptomatic colonization of the gastrointestinal tract by carbapenemase-producing Enterobacteriaceae is an important reservoir for transmission that may precede infection. This prospective, observational, case-control study was designed to identify risk factors for carbapenemase-producing Klebsiella pneumoniae (CPKP) fecal carriage. This study included 87 cases and 200 controls.

Antimicrobial resistance and molecular analysis of methicillin-resistant Staphylococcus aureus collected in a Spanish hospital.

Clonal distribution of methicillin-resistant Staphylococcus aureus (MRSA) in hospitals may differ according to the geographic location and time period. Knowledge of MRSA clonal epidemiology in hospital settings involves much more than the study of healthcare-associated MRSA (HA-MRSA) clones. In recent years, investigators have documented the introduction of both community-associated MRSA (CA-MRSA) and livestock-associated MRSA (LA-MRSA) clones, the emergence of clones carrying Staphylococcal cassette chromosome mec (SCCmec) XI, and the genetic diversity among sporadic MRSA isolates.