Multidrug Resistance and Plasmid Profiles of Escherichia coli Isolated from Lebanese Broiler Farms

Table 2

Plasmid profiles and resistance pattern of commensal E. coli isolates.

Profile	Number of plasmids	Plasmid size (kbp)	Frequency of bacteria exhibiting pattern (%)	Resistance pattern
1	1	6.8	4 (13.3)	Isolate 1: CTX, ATM, AK, AMC, TM; Isolates 2, 3, and 4: CTX, ATM, AK, AMC
2	2	6.8, 9.3	1 (3.3)	Isolate 5: CTX, ATM, AK, AMC
3	4	6.6, 7.0, 8.3, 8.9	3 (10.0)	Isolates 6, 7, and 8: AK, AMC
4	2	6.6, 8.9	1 (3.3)	Isolate 9: CTX, ATM, AK, AMC
5	1	8.7	4 (13.3)	Isolates 10, 11, 12, and 13: CTX, ATM, AMC
6	1	5.7	1 (3.3)	Isolate 14: CTX, TZP, AK, AMC
7	2	5.7, 8.4	5 (16.7)	Isolate 15: CTX, AK, AMC; Isolate 16: CTX, ATM, TZP, AK, AMC; I solate 17: ATM, TZP, AMC; Isolates 18 and 19: CTX, ATM, TZP, AMC
8	2	3.5, 7.7	2 (6.7)	Isolates 20 and 21: CTX, ATM, AMC
9	1	2.2	1 (3.3)	Isolate 22: CTX, CIP, ATM, NOR, TZP, AK, AMC, TM
10	5	1.2, 3.3, 5.2, 6.0, 8.2	2 (6.7)	Isolates 23 and 24: CTX, ATM, TZP, AMC
11	3	7.3, 7.7, 21.0	1 (3.3)	Isolate 25: CTX, ATM, TZP, AK, AMC
12	4	1.2, 2.5, 7.7, 21.0	1 (3.3)	Isolate 26: CTX, ATM, TZP, AK, TM
13	3	5.7, 7.2, 8.0	2 (6.7)	Isolates 27 and 28: CTX, ATM, TZP, AK,
14	2	2.2, 7.7	1 (3.3)	Isolate 29: CTX, CIP, ATM, AK, AMC, TM
15	1	7.7	1 (3.3)	Isolate 30: CTX, ATM, AMC, TM

All the isolates are also resistant to Ampicillin (AMP), Cephalothin (KF), Sulfamethoxazole (SMX), Tetracycline (T), Erythromycin (E), Fusidic Acid (FC), Gentamicin (GM), Penicillin G (PG), and Clindamycin (CD).