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. 2021 Apr 20;12:659613. doi: 10.3389/fmicb.2021.659613

TABLE 1.

Prevalence of genes tested in all samples and in mcr positive samples.

All samples
mcr positive
n % n %
Antimicrobial Resistance
Colistin COL 102 95.33 62 100.00
Imipenem IPM 7 6.54 3 4.84
Amoxicillin AMC 10 9.35 4 6.45
Ciprofloxacin CIP 41 38.32 22 35.48
Cefoxitin CFO 16 14.95 7 11.29
Gentamicin GEN 45 42.06 28 45.16
Sulphonamides and trimethoprim SUT 76 71.03 45 72.58
Amoxicillin and clavulanic acid AMO 40 37.38 23 37.10
Antimicrobial Associated Resistance Genes
Colistin resistance mcr1 62 57.94 62 100.00
Silver resistance silP 7 6.54 6 9.68
Integrase intI1 11 10.28 8 12.90
Copper resistance pcoD 15 14.02 10 16.13
Sulfa resistance sulI 17 15.89 9 14.52
Transposase ISEc12 14 13.08 6 9.68
Aminoglycoside resistance aadA 12 11.21 7 11.29
Gentamicin resistance aac3-VI 8 7.48 6 9.68
Quarternary amonium resistance qac delta1 17 15.89 12 19.35
Ampicillin resistance blaTEM 16 14.95 9 14.52
Gentamicin resistance aac3-VI 13 12.15 9 14.52
Tetracycline resistance tetB 24 22.43 16 25.81
Tetracycline resistance tetA 30 28.04 20 32.26
Chaperone groEL 30 28.04 21 33.87
Gentamicin resistance aph(3)IA 22 20.56 12 19.35
Trimethoprim resistance dfr17 29 27.10 16 25.81
APEC Minimal Predictors
Salmochelin siderophore receptor gene iroN 24 22.43 15 24.19
Episomal outer membrane protease gene ompT 36 33.64 19 30.65
Putative avian hemolysin F hlyF 33 30.84 17 27.42
Episomal increased serum survival gene iss 42 39.25 23 37.10
Aerobactin siderophore receptor gene iutA 53 49.53 31 50.00
3 or more predictors 33 30.84 20 32.26
Plasmid Replicon Genes
Plasmid replicon typing incI2 34 31.78 23 37.10
Plasmid replicon typing T 0 0.00 0 0.00
Plasmid replicon typing P 11 10.28 4 6.45
Plasmid replicon typing A/C 1 0.93 0 0.00
Plasmid replicon typing FIC 2 1.87 0 0.00
Plasmid replicon typing B/O 30 28.04 21 33.87
Plasmid replicon typing Y 1 0.93 0 0.00
Plasmid replicon typing FIB 39 36.45 22 35.48
Plasmid replicon typing FIA 3 2.80 1 1.61
Plasmid replicon typing FIIA 0 0.00 0 0.00
Plasmid replicon typing W 0 0.00 0 0.00
Plasmid replicon typing K/B 5 4.67 2 3.23
Plasmid replicon typing L/M 16 14.95 10 16.13
Plasmid replicon typing Hl2 8 7.48 6 9.68
Plasmid replicon typing N 13 12.15 9 14.52
Plasmid replicon typing HII 8 7.48 7 11.29
Plasmid replicon typing X 1 0.93 0 0.00
Plasmid replicon typing II 24 22.43 14 22.58
Phylogenetic Typing
Phylotype group A 21 19.62 12 19.35
Phylotype group B1 41 38.32 22 35.48
Phylotype group B2 0 0.00 0 0.00
Phylotype group C 2 1.87 1 1.61
Phylotype group D 13 12.15 9 14.52
Phylotype group E 12 11.21 6 9.68
Phylotype group F 16 14.95 10 16.13