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Table 1 Antimicrobial resistance profiles of E. coli isolates from humans, chickens and farm/market environments in Abuja—Nigeria, 2019

From: Genetic relatedness of multidrug resistant Escherichia coli isolated from humans, chickens and poultry environments

Drug class Drug Resistance break point µg/mL Human
n = 47
(%)
Chicken
n = 36
(%)
Environment
n = 27
(%)
Total
n = 110
(%)
Tetracyclines Tetracycline ≤ 11 39 (83.0) 35 (97.2) 27 (100.0) 101 (91.8)
Folate Pathway antagonists Sulfamethoxazole/Trimethoprim ≤ 10 39 (83.0) 31 (86.1) 24 (88.9) 94 (85.5)
Penicillins Ampicillin ≤ 13 36 (76.6) 31 (86.1) 20 (74.1) 87 (79.1)
Quinolones Nalidixic acid ≤ 13 26 (55.3) 27 (75.0) 19 (70.4) 72 (65.5)
Aminoglycosides Streptomycin ≤ 11 35 (74.5) 30 (83.3) 22 (81.5) 87 (79.1)
Gentamicin ≤ 12 20 (42.5) 27 (75.0) 16 (59.3) 63 (57.3)
Phenicols Chloramphenicol ≤ 12 15 (31.9) 17 (47.2) 7 (25.9) 39 (35.5)
1st Generation
Cephalosporins
Cephalothin ≤ 14 13 (27.7) 15 (41.7) 5 (18.5) 33 (30.0)
Nitrofurans Nitrofurantoin ≤ 14 5 (10.6) 13 (36.1) 8 (29.6) 26 (23.6)
Carbapenems Imipenem ≤ 19 3 (6.4) 6 (16.7) 3 (11.1) 12 (10.9)
B-lactam inhibitors Amoxicillin-clavulanate ≤ 13 2 (4.3) 5 (13.9) 3 (11.1) 10 (9.1)
3rd and 4th Generation
Cephalosporins
Ceftriaxone ≤ 19 3 (6.4) 1 (2.8) 1 (3.7) 5 (4.6)
Cefuroxime ≤ 14 4 (8.5) 3 (8.3) 0 (0) 7 (6.4)
Cefotaxime ≤ 22 4 (8.5) 1 (2.8) 1 (3.7) 6 (5.5)
Ceftazidime ≤ 17 4 (8.5) 2 (5.6) 5 (18.5) 11 (10.0)
Polymyxin Colistin ≤ 11 7 (14.9) 3 (8.3) 3 (11.1) 13 (11.8)
Resistance to 3 or more classes of antibiotics MDR n/a 39 (82.9) 35 (97.2) 27 (100) 101(91.8)