TABLE 3.

Number of positive GM tests in 42 episodes monitored before and after initiation of treatment with intravenous β-lactam antibiotics according to the antibiotic

AntibioticNo. of samples with positive GM index/no. testeda
Before treatmentDuring treatment
Amoxicillin-clavulanic acidb0/66/6
Amoxicillinb2/1616/16
Piperacillin-tazobactam3/2020/20
  • a A GM index of ≥0.5 was considered positive.

  • b Amoxicillin (sodium salt) and amoxicillin-clavulanic acid (sodium and potassium salts) are available for intravenous use in France and elsewhere in Europe.