Characteristics of MRSA clones isolated from children with community onset MRSA infections (CO-MRSA), Argentina.

agr type, type of accessory gene regulator, ST: Sequence Type, SCCmec: Staphylococcal Cassette Chromosome mec, PFGE, Pulsed Field Gel Electrophoresis; RIDOM spa type: staphylococcal protein A (spa) type assigned through the RIDOM databases (http://spaserver.ridom.de).an (%), total number and % of strains with this molecular characteristic [PFGE subtype (only those more frequent are indicated) or ST or spa type or SCCmec type]. % is not expressed when only one isolate with this characteristic was detected.bpvl, Panton-Valentine leukocidin genes (lukS-PV-lukF-PV); indicated as number and % of isolates harboring (PVl+) or not (PVL−) pvl genes.cvirulence genes profile: From all virulence genes analyzed, only those detected are indicated (number and % of positive isolates is expressed when not all isolates harbor this virulence factor).dDrug resistance to non-β-Lactams (%), is indicated as follows: Gentamicin (GEN), Ciprofloxacin (CIP), Erythromycin (ERY), Clindamycin (CLIc and CLIi: constitutive and inducible resistance to macrolides, lincosamide and streptogramine B, respectively), rifampin (RIF), chloramphenicol (CHL), trimethoprim/sulfamethoxazole (SXT) and minocycline (MIN) (%) of strains resistant to these antibiotics within each pulsotype is indicated when more than one isolate was detected. h-VISA (1): means one isolate belonging to this clone with phenotype h-VISA.eIV NT: SCCmec type IV non typable.fVr: SCCmec related to V.