Table 4 Resistance-related genes among 96 genome sequenced aEPEC isolates
Phenotype of resistance (no. of isolates) | Resistance genes | No. of isolates (%) |
|---|---|---|
Ampicillin (50) | bla TEM-1 | 24 (48.0) |
bla CTX | 8 (16.0) | |
bla OXA | 3 (6.0) | |
blaTEM-1Â +Â blaCTX | 8 (16.0) | |
blaTEM-1Â +Â blaLEN | 1 (2.0) | |
blaCTXÂ +Â blaLEN | 2 (4.0) | |
blaCTXÂ +Â blaOXA | 1 (2.0) | |
Tetracycline (51) | tetA | 27 (52.9) |
tetB | 2 (3.9) | |
tetC | 1 (2.0) | |
tetAÂ +Â tetC | 9 (17.6) | |
tetBÂ +Â tetC | 5 (10.0) | |
Chloramphenicol (8) | cat | 3 (37.5) |
cml | 5 (62.5) | |
Trimethoprim–sulfamethoxazole (40) | sul1 + dfra12/17 | 15 (37.5) |
sul2Â +Â dfra14/17 | 6 (15.0) | |
sul3Â +Â dfra12 | 3 (7.5) | |
sul1Â +Â sul2Â +Â dfra5/12/17 | 14 (35.0) | |
dfra1 | 2 (5.0) | |
dfra17 | 1 (2.5) | |
Gentamicin (33) | aac3iia | 23 (69.7) |
aac3iia + ant2ia | 3 (9.1) | |
aac3iia + aph3ia | 2 (6.1) | |
aac3iia + ant2ia + aph3ia | 1 (3.0) | |
Streptomycin (44) | ant3ia | 4 (9.1) |
aph33ib | 2 (4.5) | |
aph33ib + aph6id | 24 (54.5) | |
aph33ib + aph6id + ant3ia | 1 (2.3) | |
Kanamycin (12) | ant2ia | 1 (8.3) |
aph3ia | 3 (25.0) | |
ant2ia + aph3ia | 2 (16.7) |