Table 3 Correlation between phenotypic resistance and detection of resistance-associated genes of food and clinical isolates
Antibiotic | Gene(s) | Food isolates (n = 51) | Clinical isolates (S. aureus n = 39) | ||||||
|---|---|---|---|---|---|---|---|---|---|
S. aureus (n = 33) | CoNS (n = 18) | Hospital-acquired isolates (n = 18) | Community-acquired isolates (n = 21) | ||||||
Phenotypic resistance | Gene detection | Phenotypic resistance | Gene detection | Phenotypic resistance | Gene detection | Phenotypic resistance | Gene detection | ||
Penicillin | blaZ | 33 | 15 (45.5%) | 15 | 7 (46.7%) | 17 | 6 (35.3%) | 19 | 13 (68.4%) |
Methicillin | mecA | 2 | 1 (50.0%) | 3 | 1 (33.3%) | 7 | 7 (100%) | 14 | 13 (92.8%) |
Gentamicin | aacA-aphD | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 1 (33.3%) |
Erythromycin | ermC | 3 | 0 | 1 | 1 (100%) | 5 | 1 (20.0%) | 11 | 4 (36.4%) |
Tetracycline | tetM | 15 | 8 (53.3%) | 10 | 9 (90.0%) | 8 | 4 (50.0%) | 10 | 9 (90.0%) |
tetK | 7 (46.7%) | 2 (20.0%) | 4 (50.0%) | 8 (80.0%) | |||||
tetM + tetK | 5 (33.3%) | 2 (20.0%) | 2 (25.0%) | 7 (70.0%) | |||||