Epidemiological surveillance for community-associated methicillin-resistant Staphylococcus aureus revealed prevalences of 33% and 13% in pediatric and adult patients, respectively, in Cordoba, Argentina, in 2005. This study describes for the first time the emergence and dissemination of the sequence type 5 (ST5) lineage as the most prevalent clone (89%) (pulsed-field gel electrophoresis type I-...

Toxic purpura occurring in persons who have previously been sensitized by drug-taking often manifests itself with great rapidity in a matter of a few hours. Thrombocytopenia which may accompany this type of purpura can also occur in a very short time. If the natural life-span of platelets is about five days (Lawrence and Valentine, 1947; Hirsch and Gardner, 1952) then this rapid onset of thromb...

HIV-infected persons are at heightened risk for recurrent community-acquired methicillin-resistant Staphylococcus aureus (CA-MRSA) infections, but there are limited data regarding the molecular characterization of these events. We describe an HIV-infected patient with 24 soft tissue infections and multiple colonization events. Molecular genotyping from 33 nonduplicate isolates showed all strain...

Staphylococcal cassette chromosome mec (SCCmec) types and Panton-Valentine leukocidin (PVL) gene carriage were compared among suspected community-associated methicillin-resistant Staphylococcus aureus MRSA (CA-MRSA) and health care-associated MRSA (HA-MRSA) isolates. CA-MRSA isolates carried the SCCmec type IV complex, and most were PVL positive. The HA-MRSA isolates carried the SCCmec type II ...

The test is an application of the method originally described by Boyden (1951) and adapted by Stavitsky and Arquilla (1958). Sera which contain anti-Panton-Valentine leucocidin agglutinate the prepared red cells, often to a very high dilution, and this has provided a useful serological test for the diagnosis of staphylococcal disease in orthopaedic lesions. The test is quicker as a routine inve...

Staphylococcus aureus is the most frequently isolated pathogen from bovine mastitis including subclinical, clinical, and chronic infections. Virulence factors possessed by S. aid in causing infection inflammation producing toxins proteins, which are responsible for pathogenesis of disease. In current study out 51 animals presented with clinical mastitis, was milk 18 animals. confirmed genus spe...