Transposons and integrons in colistin resistant clones with epidemic or sporadic behavior

ARDUINO SONIA M; QUIROGA MARÍA PAULA; RAMÍREZ MARÍA SOLEDAD; MERKIER ANDREA KARINA; ERRECALDE LAURA; DI MARTINO ANA; SMAYEVSKY JORGELINA; KAUFMAN SARA; CENTRÓN DANIELA

JOURNAL OF MEDICAL MICROBIOLOGY

SOC GENERAL MICROBIOLOGY

Lugar: London; Año: 2012 p. 1417 - 1420

0022-2615

Multiple transposons, integrons and carbapenemases were found in Klebsiella pneumoniae as well as the AbaR in Acinetobacter baumannii colistin resistant isolates from different hospitals from Buenos Aires City. PFGE analysis showed a polyclonal dissemination of antimicrobial resistance mechanisms among K. pneumoniae, while in A. baumannii isolates the epidemic clone 1 from South America was found. Resistance determinants associated to horizontal gene transfer are contributing in the evolution to pandrug resistance in both epidemic and sporadic clones.