Table 3.

Results of conjugation assays between antibiotic resistant E. coli isolates obtained from water samples and the recipient E. coli J53 strain.

Isolates ID	Parent Strains		Transconjugants		Transfer Rate
	Resistant pattern	Plasmid pattern	Resistant pattern	Plasmid pattern
9125B	Amc, Amp, Cro, Cxm, Cfa, Sxt, Caz, Cfm	85, 57, 49, 37	Amc, Amp, Cxm, Cfa	57	3.33 × 10−5
8W390H1	Amp, Cro, Cxm, Cfa, Caz, Cfm	42, 3.2, 2.6	Amp, Cro, Cxm, Cfa, Caz, Cfm	42	3.37 × 10−6
8W803H2	Amp, Cro, Cxm, Cfa, NA, Sxt, Caz, Cfm	103, 4.9, 2.9, 2.6	Amp,Cro, Cxm, Cfa, NA, Caz, Cfm	103	1.8 × 10−5
8W454H1	Amp, Fep, Cro, Cxm, Cfa, Cip, NA, Sxt, Caz, Cfm	82, 44, 37	Amp, Fep, Cro, Cxm, Cfa, Sxt, Caz, Cfm	44	1.57 × 10−6
12224H1	Amp, Cro, Cxm, Cfa, NA, Caz, Cfm	97, 39, 2	Amp, Cro, Cxm, Cfa, Caz, Cfm	39	3.6 × 10−4
1E07H2	Amp, Cro, Cxm, Cfa Caz, Cfm	71, 33, 30	Amp, Cro, Cxm, Cfa, Caz, Cfm	33, 30	5.26 × 10−5
1E391A	Amp, Cro, Cxm, Cfa, Caz, Cfm	92, 74, 56	Amp, Cro, Cxm, Cfa, Caz, Cfm	56	5.17 × 10−6
C-2WH4	Amp, Cro, Cxm, Cfa, Caz, Cfm	91, 37	Amp, Cro, Cxm, Cfa, Caz, Cfm	91	1.19 × 10−4
2W147H2	Amp, Cro, Cxm, Cfa, Caz, Cfm	56,37, 2.8, 2.5, 2	Amp, Cro, Cxm, Cfa, Caz, Cfm	56, 37	4.75 × 10−6