Table 3 Resistance pattern, virulence genes and class I integron profiles among multidrug resistant Salmonella serotypes in this study
Strain no. | Serovar (source of isolate) | Resistance pattern | Virulence genes | Integron amplicon size (bp) | Integron profile (IP) | Genes in the cassettes | Accession numbers | |||
|---|---|---|---|---|---|---|---|---|---|---|
PefA | hilA | SopB | Stn | |||||||
1 | S. Derby (duck) | ST E Amc | − | − | − | − | 937 1600 | I | aac (3)-Idaac (3)-Id, aadA7 | KT581257 KT427378 |
2 | S. Kiel (chicken) | A T E Amc | − | + | − | − | 937 | II |  |  |
3 | Untypable (duck) | A C S Sxt T E Cx As Na G Amc | + | − | + | − | 1500 | III | aac (3)-Id, aadA7 | KT581256 |
4 | S. Rubislaw (chicken) | A C S Sxt T E As Na G Amc | + | − | − | − | 1500 | III | – |  |
5 | S. Typhimurium (chicken) | A C S Sxt T E As Na G Amc | − | − | − | − | 1100 1500 | IV | – estX-sat | KT581255 |
6 | S. Typhimurium (chicken) | S Sxt T E Cx Co Na G | − | − | + | − | 650 1550 | V | sat ac (3)-Id, aadA7at | KT449570 KT598359 |
7 | Untypable (duck) | A Sxt T E As Na Amc | − | − | + | − | 1600 3000 | VI | – |  |
8 | S. Typhimurium (human) | A C S Sxt T E Cro As Na G Amc | − | − | + | − | 1000 | VII | – |  |
9 | S. Typhimurium (human) | A C S Sxt T E As Na Amc | − | − | + | + | 650 750 1600 | VIII | adA4 adfrA15 | KT581253 KT449571 |
10 | S. Typhimurium (chicken) | S Sxt T E As G Amc | − | − | − | − | 1900 | IX |  |  |
11 | S. Typhimurium (chicken) | A C S Sxt T E As Na G Amc | − | − | − | − | 1900 | IX | aadA2, lnuF | KT449569 |
12 | S. Typhimurium (chicken) | C Sxt T E Cx As Na G Amc | + | − | − | − | 1550 | X | aac (3)-Id, aadA7 | KT581254 |