. 2009 Jun 8;53(8):3357–3364. doi: 10.1128/AAC.01655-08

TABLE 1.

MIC₅₀s, MIC₉₀s, and MIC ranges of β-lactam agents for C. jejuni and C. coli

β-Lactam agent^a	MIC(μg/ml) of β-lactam agent for C. jejuni (n = 967)			MIC(μg/ml) of β-lactam agent for C. coli (n = 319)
β-Lactam agent^a	MIC₅₀	MIC₉₀	Range	MIC₅₀	MIC₉₀	Range
AMP	64	128	0.5-256	64	128	4-256
AMX	64	128	0.5->128	128	>128	8->128
AMC	4	8	0.25-32	16	32	2-32
PEN	64	256	<8-256	128	128	<8-256
TIC	64	128	<4-256	64	128	8-256
CAR	128	256	1->256	128	256	32->256
PIP	≥512	>512	128->512	512	512	512
TZP	16	32	1-128	16	32	16-32
CLX	256	>256	<8->256	256	>256	256->256
CEF	>256	>256	8->256	256	>256	128->256
CXM	128	128	1->256	128	256	64-256
FAM	>256	>256	<8->256	>256	>256	256->256
FOX	128	256	2->256	128	>256	64->256
CTX	4	8	0.25-16	4	8	2-16
MEM	0.015	0.12	0.008-0.5	0.12	0.12	0.015-0.25
IPM	0.03	0.06	<0.015-0.25	0.06	0.12	0.015-0.25
ATM	64	>128	0.12->128	64	>128	8->128

Abbreviations: AMP, ampicillin; AMX, amoxicillin; AMC, co-amoxiclav (ampicillin-clavulanic acid); PEN, benzylpenicillin; TIC, ticarcillin; CAR, carbenicillin; PIP, piperacillin; TZP, tazocin (piperacillin-tazobactam); CLX, cloxacillin; CEF, cefalothin; CXM, cefuroxime; FAM, cefamandole; FOX, cefoxitin; CTX, cefotaxime; MEM, meropenem; IPM, imipenem; ATM, aztreonam.