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.

DistrictResistance phenotypes of donorsAbx used for selectionResistance genes in transconjugantsConjugation efficiencyReplicon type in transconjugantsResistance phenotypes of transconjugants

Arusha urbanStrSulTriStrNDI1Str
StrTriStrNDFICStr

Moshi urbanAmpStrSulTetTriTettet(B), TEM-15.8 × 10−3NDAmpStrSulTetTri
AmpStrSulTetTriAmptet(A)3.83 × 10−3P, FIIAAmpStrSulTetTri
AmpStrSulTetAmptet(A)9.88 × 10−1NDAmpStrSulTet
SulTetTriTettet(A)9.93 × 10−1NDSulTetTri
StrTetTriTettet(B)2.00 × 10−7NDStrTetTri
AmpStrAmpND2.7 × 10−4FIIAAmp

Moshi ruralAmpStrSulTetTriAmptet(A), TEM-18.33 × 10−6A/C, P, FIBAmpStrSulTetTri
AmpSulTetTriTettet(A)7.86 × 10−2FIA, FIBAmpSulTetTri
AmpStrSulTetTriTettet(A)2.05 × 10−7A/CAmpStrSulTetTri

Hai ruralAmpStrSulTetTriAmpND7.49 × 10−3NDAmp
AmpStrSulTetAmpNDNDAmp

Simanjiro ruralAmpCeftazKanStrSulTetTriAmp6.5 × 10−2N, FIB, FIAAmpStrSulTetTri
AmpCeftazChloStrSulTetTriAmpN, H12AmpCeftazStrSul
AmpStrTetTriTettet(B)1.08 × 10−4NDAmpStrSulTet
AmpSulTetTriAmpND6.25 × 10−4NDAmpSul
TetTriTetNDNDTet

Monduli ruralAmpCeftazChloKanStrSulTetTriTettet(A), 9.26 × 10−2H12, K/BAmpCeftazChloKanStrSulTetTri
AmpStrSulTetTriAmptet(A)3.19 × 10−4NDAmpSulTet
AmpStrSulTetAmpND1.07 × 10−2I1, FIBAmpSul
AmpSulTetAmpND7.91 × 10−3B/OAmpSulTet
AmpSulAmpND2.45 × 10−2NDAmpSul

Longido ruralAmpStrSulTetTriAmpND5.31 × 10−3B/O, FICAmpSul
AmpStrSulTriAmpND8.93 × 10−4FICAmpSul
AmpSulTetTriTetND8.99 × 10−5FIC, A/C, FIIAAmpSulTet
AmpStrTetAmpND1.33 × 10−4I1, K/BAmpStrTet

Arumeru periurbanAmpChloKanSulTetTriAmptet(B), 8.95 × 10−2I1, FIB, FIA, K/BAmpKanStrSulTetTri
AmpChloSulTetTriAmpND1.66 × 10−2NDAmpSul
AmpStrSulTetTriAmpND5 × 10−3NDAmp
AmpSulTetTriAmp8.33 × 10−1NDAmpSulTetTri

Abx, antibiotic; Amp, ampicillin; Ceftaz, ceftazidime; Cip, ciprofloxacin; Chlo, chloramphenicol; Kan, kanamycin; Str, streptomycin; Sul, sulfamethoxazole; Tet, tetracycline; Trm, trimethoprim; ND, not detected.