Research Article
Shiga Toxin-Producing Escherichia coli Isolated from Bovine Mastitic Milk: Serogroups, Virulence Factors, and Antibiotic Resistance Properties
Table 8
Distribution of antimicrobial resistance genes in Shiga toxin-producing Escherichia coli serogroups isolated from bovine mastitis.
| | | aadA1 | tetA | tetB | dfrA1 | qnr | aac(3)-IV | sul1 | blaSHV | CITM | cat1 | cmlA |
| O157
(11)
| 7 | 6 | 4 | 5 | 6 | 2 | 9 | 1 | 1 | 3 | 2 | O26
(15)
| 12 | 8 | 3 | 7 | 5 | 3 | 6 | — | 1 | 5 | 2 | O103
(3)
| 2 | 1 | 2 | 3 | — | 2 | 3 | — | — | 2 | — | O111
(-)
| — | — | — | — | — | — | — | — | — | — | — | O145
(3)
| 2 | 2 | 1 | 2 | 1 | — | 1 | — | — | 1 | 1 | O45
(2)
| 1 | 1 | 1 | — | 1 | — | — | — | 1 | 2 | — | O91
(6)
| 4 | 3 | 2 | 4 | 2 | 4 | 4 | 2 | — | 2 | — | O113
(3)
| 2 | 2 | — | 3 | — | 2 | 2 | — | 1 | 1 | 1 | O121
(2)
| 1 | — | 1 | 1 | 1 | — | 2 | — | 2 | — | 1 | O128
(2) | — | — | 2 | 1 | 1 | — | — | — | — | — | — |
| Total
(47) | 31
(65.95%) | 23
(48.93%) | 16
(34.04%) | 26
(55.31%) | 17
(36.17%) | 13
(27.65%) | 27
(57.44%) | 3
(6.38%) | 6
(12.76%) | 16
(34.04%) | 7
(14.89%) |
|
|
