Research Article
IncF Plasmids Are Commonly Carried by Antibiotic Resistant Escherichia coli Isolated from Drinking Water Sources in Northern Tanzania
Table 2
Sample collection sites, phenotypes of donor and transconjugants, conjugation efficiency, resistance genes, and associated plasmid replicons.
| District | Resistance phenotypes of donors | Abx used for selection | Resistance genes in transconjugants | Conjugation efficiency | Replicon type in transconjugants | Resistance phenotypes of transconjugants |
| Arusha urban | StrSulTri | Str | ND | — | I1 | Str | StrTri | Str | ND | — | FIC | Str |
| Moshi urban | AmpStrSulTetTri | Tet | tet(B), TEM-1 | 5.8 × 10−3 | ND | AmpStrSulTetTri | AmpStrSulTetTri | Amp | tet(A) | 3.83 × 10−3 | P, FIIA | AmpStrSulTetTri | AmpStrSulTet | Amp | tet(A) | 9.88 × 10−1 | ND | AmpStrSulTet | SulTetTri | Tet | tet(A) | 9.93 × 10−1 | ND | SulTetTri | StrTetTri | Tet | tet(B) | 2.00 × 10−7 | ND | StrTetTri | AmpStr | Amp | ND | 2.7 × 10−4 | FIIA | Amp |
| Moshi rural | AmpStrSulTetTri | Amp | tet(A), TEM-1 | 8.33 × 10−6 | A/C, P, FIB | AmpStrSulTetTri | AmpSulTetTri | Tet | tet(A) | 7.86 × 10−2 | FIA, FIB | AmpSulTetTri | AmpStrSulTetTri | Tet | tet(A) | 2.05 × 10−7 | A/C | AmpStrSulTetTri |
| Hai rural | AmpStrSulTetTri | Amp | ND | 7.49 × 10−3 | ND | Amp | AmpStrSulTet | Amp | ND | — | ND | Amp |
| Simanjiro rural | AmpCeftazKanStrSulTetTri | Amp | | 6.5 × 10−2 | N, FIB, FIA | AmpStrSulTetTri | AmpCeftazChloStrSulTetTri | Amp | | — | N, H12 | AmpCeftazStrSul | AmpStrTetTri | Tet | tet(B) | 1.08 × 10−4 | ND | AmpStrSulTet | AmpSulTetTri | Amp | ND | 6.25 × 10−4 | ND | AmpSul | TetTri | Tet | ND | — | ND | Tet |
| Monduli rural | AmpCeftazChloKanStrSulTetTri | Tet | tet(A), | 9.26 × 10−2 | H12, K/B | AmpCeftazChloKanStrSulTetTri | AmpStrSulTetTri | Amp | tet(A) | 3.19 × 10−4 | ND | AmpSulTet | AmpStrSulTet | Amp | ND | 1.07 × 10−2 | I1, FIB | AmpSul | AmpSulTet | Amp | ND | 7.91 × 10−3 | B/O | AmpSulTet | AmpSul | Amp | ND | 2.45 × 10−2 | ND | AmpSul |
| Longido rural | AmpStrSulTetTri | Amp | ND | 5.31 × 10−3 | B/O, FIC | AmpSul | AmpStrSulTri | Amp | ND | 8.93 × 10−4 | FIC | AmpSul | AmpSulTetTri | Tet | ND | 8.99 × 10−5 | FIC, A/C, FIIA | AmpSulTet | AmpStrTet | Amp | ND | 1.33 × 10−4 | I1, K/B | AmpStrTet |
| Arumeru periurban | AmpChloKanSulTetTri | Amp | tet(B), | 8.95 × 10−2 | I1, FIB, FIA, K/B | AmpKanStrSulTetTri | AmpChloSulTetTri | Amp | ND | 1.66 × 10−2 | ND | AmpSul | AmpStrSulTetTri | Amp | ND | 5 × 10−3 | ND | Amp | AmpSulTetTri | Amp | | 8.33 × 10−1 | ND | AmpSulTetTri |
|
|
Abx, antibiotic; Amp, ampicillin; Ceftaz, ceftazidime; Cip, ciprofloxacin; Chlo, chloramphenicol; Kan, kanamycin; Str, streptomycin; Sul, sulfamethoxazole; Tet, tetracycline; Trm, trimethoprim; ND, not detected.
|