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. 2021 Feb 3;12:592291. doi: 10.3389/fmicb.2021.592291

TABLE 2.

Occurrence of ESBL/AmpC-producing Enterobacteriaceae in food samples.

Food category Number of samples analyzed Number of samples positive for ESBL/AmpC Enterobacteriaceae (%)a Number of samples positive for ESBL/AmpC E. coli (%) Number of samples positive for ESBL/AmpC K. pneumoniae (%) Number of isolates obtained (samples positive for bacterial growth/total no. of samples) Number of E. coli isolates/total no. of isolates (%) Number of K. pneumoniae isolates/total no. of isolates (%)
Vegetables 60 3 (5) 2 (3) 1 (2) 127 (57/60) 2/127 (2) 2/127 (2)
Fruits and berries 50 0 (0) 0 (0) 0 (0) 40 (25/50) 0/40 (0) 0/40 (0)
Meat 60 11 (18) 10 (17) 2 (3) 103 (49/60) 19/103 (18) 3/103 (3)
Seafood 30 0 (0) 0 (0) 0 (0) 43 (21/30) 0/43 (0) 0/43 (0)
Total 200 14 (7) 12 (6) 3 (2) 313 (152/200) 21/313 (7) 5/313 (2)
Subsamples 40 36 (90) 35 (89) 4 (10) 135 (40/40) 86/135 (64) 4/135 (3)

aBased on phenotypic tests (EFSA Panel on Biological Hazards, 2011; EUCAST, 2017) and species identification with matrix-assisted laser desorption ionization–time of flight mass spectrometry, including results with a score value of 2.0–3.0.