methicillin-resistant staphylococcus aureus (mrsa) is a major cause of nosocomial infections all around the world. mrsas are usually present in health care centers and hospitals. nowadays methicillin-resistant mrsas in two groups of healthcare associated mrsa (ha_mrsa) and community associated mrsa (ca_mrsa)were studied. predisposing factors for ha_mrsa infections included hemodialysis, surgery...

background:   methicillin-resistant   staphylococcus   aureus  (mrsa)   is  a major cause of nosocomial and community infections that are becoming increasingly difficult to combat, because of emerging resistance to all classes of antibiotics. moreover panton-valentine  leukocidin (pvl) is an important virulence factor in s. aureus and causes white blood cell destruction, necrosis and  accelerat...

Community-associated methicillin-resistant Staphylococcus aureus is a frequent cause of skin and soft-tissue infections and is increasingly identified as a cause of pneumonia in immunocompetent patients. Panton-Valentine leukocidin, one of several leukocytotoxic peptides secreted by these cocci, is associated with increased virulence. A cluster of 3 unrelated patients with fatal pneumonia presu...

Staphylococcus aureus (SA) remains a major cause of nosocomial and community-acquired infections worldwide. Nasal carriage of this bacterium among hospital personnel constitutes an important source for nosocomial infections. A cross-sectional study enrolling the whole medical student population (n=387) of the School of Medicine at the Universidad de Cartagena, Colombia, was conducted to evaluat...

INTRODUCTION Certain Staphylococcus aureus strains produce Panton-Valentine leukocidin, a toxin that lyses white blood cells causing extensive tissue necrosis and chronic, recurrent or severe infection. This report documents a confirmed case of methicillin-sensitive Staphylococcus aureus strain harboring Panton-Valentine leukocidin genes from Trinidad and Tobago. To the best of our knowledge, t...

To characterize the clinical and bacteriologic characteristics of community-acquired methicillin-resistant Staphylococcus aureus (CA-MRSA) infections, we reviewed 14 cases that were diagnosed in previously healthy patients during an 18-month period in France. Eleven patients had skin or soft-tissue infections. Two patients died of CA-MRSA necrotizing pneumonia. A case of pleurisy occurred in a ...

test; bioMérieux). DNA was extracted from cultures grown on agar plates and amplified following a previously described protocol (1). The following oligonucleotide primer sequences were used: luk-PV1, 5′-ATCATTAGGTAAAATGTCTGGACATGATCCA-3′; luk-PV2, 5′-GCATCAAGTGTAT T G G ATA G C A A A A G C 3 ′ . Polymerase chain reaction products were sequenced commercially and submitted to GenBank (accession n...