| prevalence of resistance to ampicillin, gentamicin and vancomycin in enterococcus faecalis and enterococcus faecium isolates from clinical specimens and use of antimicrobials in five nordic hospitals. | we determined the species distribution and prevalence of ampicillin resistance, high-level gentamicin resistance (hlgr) and vancomycin resistance among clinical enterococcal isolates from five nordic laboratories (bergen, tromsø, uppsala, aarhus and reykjavik). isolates represented three different groups: (i) all blood culture isolates from 1999; (ii) consecutive in-patient isolates (maximum 40); and (iii) consecutive outpatient isolates (maximum 40) collected during march to may 2000. antimicro ... | 2003 | 12562698 |