[Antimicrobial resistance of clinical isolates of Stenotrophomonas maltophilia].

Objective: To investigate the antimicrobial resistance of clinical isolates of Stenotrophomonas matophilia (SMA) and the mechanisms of their drug resistance.

Methods: Disc diffusion method (NCCLS) was used to detect the resistant patterns of 88 initial SMA isolates resistant to 12 antibiotics isolated from a local hospital in the past 4 years. PCR was used to detect the 7 aminoglycosides modifying enzymes genes (AME) against amikacin and gentamicin.

[Detection of pathogenicity island-associated genes in enterococcal isolates].

Objective: To investigate the presence of pathogenicity island (PAI)-associated genes in the enterococcal isolates.

Methods: Using PCR and hybridization methods, PAI-associated genes were detected in 155 enteococcal strains isolated from clinical patients and healthy individuals.

Results: Among the 155 enterococcal isolates, 137 (88.