Table 5.
Antibiotic susceptibility pattern of selected antibiotics from Sweden and Lithuania. Susceptibility to selected antimicrobial agents presented as the number of susceptible isolates divided by the number of all isolates tested against the respective agent and susceptibility percentages were given in brackets
| Gram-positive Aerobes | Gram-negative Aerobes | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Antimicrobial agents | Staphylococcus aureus | Coagulase-negative staphylococci | Streptococci | Enterococcus faecalis | Non-fermentative gram-negative aerobes | Other gram-negative aerobes | ||||||
| Sweden | Lithuania | Sweden | Lithuania | Sweden | Lithuania | Sweden | Lithuania | Sweden | Lithuania | Sweden | Lithuania | |
| Methicillin* | 41/42 (97.6) | 24/28 (85.7) | 32/41a (78) | 10/29b (34.4) | ||||||||
| Gentamicin | 46/47 (97.8) | 20/25 (80) | 31/44 (70.4) | 10/26 (38.4) | 3/3 (100) | 1/2 (50) | 5/5 (100) | 5/7 (71.4) | ||||
| Ciprofloxacin | 47/48 (97.9) | 23/26 (88.4) | 45/59 (76.2) | 19/27 (70.3) | 5/5 (100) | 1/2 (50) | 14/15 (93.3) | 5/5 (100) | ||||
| T/S | 45/45 (100) | 29/29 (100) | 45/58 (77.5) | 22/29 (75.8) | 1/2 (50) | 1/1 (100) | 14/14 (100) | 2/2 (100) | ||||
| Rifampicin | 49/50 (98) | 20/20 (100) | 56/58 (96.5) | 21/24 (87.5) | ||||||||
| Vancomycin | 28/28 (100) | 18/18 (100) | 48/48 (100) | 16/16 (100) | 8/8 (100) | 9/9 (100) | 11/11 (100) | |||||
| Penicillin | 19/20c (95) | 12/12 (100) | ||||||||||
| Ampicillin | 11/12 (91.6) | 2/2 (100) | ||||||||||
| P/T | 4/4 (100) | 1/2 (50) | 14/14 (100) | 6/6 (100) | ||||||||
* In Sweden and Lithuania, iso-penicillin and oxacillin respectively were used as surrogate antibiotics for methicillin susceptibility. T/S = Trimethoprim-sulfamethoxazole
P/T = Piperacillin- tazobactam. a = All resistant strains were Staphylococcus epidermidis. b = All resistant strains were Staphylococcus epidermidis except one. c = The penicillin-resistant isolate was a Streptococcus pneumoniae