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Table 6 Occurrence of MBL and AmpC genes variants among phenotypic MBL and AmpC positive Escherichia coli, Klebsiella pneumoniae, and Pseudomonas aeruginosa

From: Metallo-β-lactamase and AmpC genes in Escherichia coli, Klebsiella pneumoniae, and Pseudomonas aeruginosa isolates from abattoir and poultry origin in Nigeria

Genes Escherichia coli (n = 22)
n (%)
Klebsiella pneumoniae (n = 18)
n (%)
Pseudomonas aeruginosa (n = 22)
n (%)
Total (n = 62)
n (%)
MBL gene
blaIMP-1 8 (36.4) 9 (50) 12 (54.5) 29 (46.8)
blaIMP-2 4 (18.2) 6 (33.3) 4 (18.2) 14 (22.6)
 Total 12 (54.6) 15 (83.3) 16 (72.7) 43 (69.4)
  Escherichia coli (n = 17)
n (%)
Klebsiella pneumoniae (n = 18)
n (%)
Pseudomonas aeruginosa (n = 24)
n (%)
Total (n = 59)
n (%)
AmpC gene
blaCMY 3 (17.6) 4 (22.2) 7 (29.2) 14 (23.7)
blaFOX 2 (11.8) 1 (5.6) 3 (12.5) 6 (10.2)
 Total 5 (29.4) 5 (27.8) 10 (41.7) 20 (33.9)