Określono lekooporność szczepów gronkowców izolowanych w latach 1999 - 2000 od chorych leczonych ambulatoryjnie z terenu miasta Poznania. Określono też częstość występowania gronkowców metycylinoopornych, oraz zdolność wytwarzania ß-laktamaz.
EN
The aim of the study was to determine susceptibility of 587 strains of S. aureus and 85 strains of coagulase - negative staphylococci isolated from outpatients in Poznań to co-trimoxazole, amoxyciIlin/clavulanic acid, erythromycin, gentamycin, doxycycline, ampicillin, oxacillin, cephradine, clindamycin and neomycin. Also methicillin-resistant strains were determined as well as strains ability to produce ß-lactamases. Susceptibility testing and examination of methicillin-resistant strains were performed by the disc diffusion techniques according to recommendation of NCCLS. Methicillin-resistant strains were additionally examined to their sensitivity to vankomycin and teicoplanin. ß-lactamase production was detected using nitrocefin impregnated discs and iodometric method. Amoxacillin/clavulanic acid, gentamycin, co-trimoxazole, cephradin, oxacillin and clindamycin occurred to be very active against both, S. aureus and coagulase-negative staphylococci. 84.7% to 100% of examined strains were sensitive to these drugs. Doxycyclin, erythromycin and ampicillin were less effective. Nine strains (1.5%) of 587 strains of S. aureus as well as 17 strains ( 8.7%) of coagulase-negative staphylococci were methicillin-resistant. All of methicillin-resistant strains were sensitive to vancomycin and teicoplanin. More than 75% of S. aureus and close to 50% of coagulase-negative staphylococci were able to produce ß-lactamases.