Table 3.

β-Lactamase profiles of carbapenem-resistant isolates

SourceIsolateβ-Lactamase pIa
Belgium04737 7.9, 8.0, 8.2
KuwaitA-156.3, 7.0, 8.0, 9.5
Spain3270097.6, 8.0
SingaporeI-166.0, 6.8
  • a pI values shown in bold are for enzymes purified and shown to have carbapenemase activity.