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Table 4 Presence of blaZ gene and β-lactamase activity in clinical isolates of BIVR and non-BIVR strains

From: Low level β-lactamase production in methicillin-resistant staphylococcus aureus strains with β-lactam antibiotics-induced vancomycin resistance

  blaZ Nitrocefin test
  + - + -
BIVR 4 (16.0%) 21 (84.0%) 2 (8.0%) 23 (92.0%)
Non-BIVR 310 (94.5%) 18 (5.5%) 200 (61.0%) 128 (39.0%)