Table 2.

Antimicrobial susceptibility results of extended-spectrum β-lactamase-producing Enterobacteriaceae (ESBL-PE) isolated from pigs and humans.

Antibiotics	Cameroon				South Africa
	Pig		Human		Pig
	MIC (µg/mL) Range	No. (%) Resistant Isolates	MIC (µg/mL) Range	No. (%) Resistant Isolates	MIC (µg/mL) Range	No. (%) Resistant Isolates
Ampicillin	≥32	126 (95)	≤2–≥32	32(73)	≥32	38 (100)
Amoxicillin-clavulanate	4–≥32	54(40)	≤2–≥32	8(18)	8–16	2(5)
Piperacillin-tazobactam	≤4–≥128	24(18)	≤4–64	2(5)	≤4	0
Cefuroxime	4–≥64	124(93)	≤1–≥64	19(43)	≥64	38 (100)
Cefuroxime-axetil	4–≥64	125(93)	≤1–≥64	19(43)	≥64	38 (100)
Cefoxitin	≤4–≥64	10(7)	≤4–≥64	3(7)	≤4	0
Cefotaxime	≤1–≥64	118(88)	≤1–≥64	14(32)	4–≥64	38 (100)
Ceftazidime	≤1–≥64	93(69)	≤1–≥64	8(18)	≤1–4	1 (3)
Cefepime	≤0.5–≥64	6(4)	≤1–≥64	2(5)	≤1–4	1 (3)
Meropenem	≤0.25	0	≤0.25	0	≤0.25	0
Imipenem	≤0.25	0	≤0.25	0	≤0.25	0
Ertapenem	≤0.5	0	≤0.5	0	≤0.5	0
Amikacin	≤2–16	11(8)	≤2–16	1(2)	≤2–16	1 (3)
Gentamicin	≤1–≥16	43(32)	≤1–≥16	3(7)	≤1–≥16	7(18)
Ciprofloxacin	≤0.25–≥4	33(25)	≤0.25–≥4	2(5)	≤0.25	0
Tigecycline	≤0.5–2	0	≤0.5–1	0	≤0.5–1	0
Nitrofurantoin	≤16–64	0	≤16–128	1(2)	≤16–64	0
Colistin	≤0.5	0	≤0.5–4	1(2)	≤0.5–8	1(3)
Trimethoprim-sulfamethoxazole	≤20–≥320	119 (89)	≤20–≥320	22(50)	≤20–≥320	36(95)