TABLE 4.

Susceptibilities (MIC₉₀) of bacterial enteropathogens isolated from subjects with travelers' diarrhea studied in India versus Mexico and Guatemala, 2006 to 2008

Antibiotic	BPa	India						Mexico and Guatemala
		Campylobacter (n = 17)b		ETEC (n = 98)		EAEC (n = 3)		Campylobacter (n = 6)		ETEC (n = 270)		EAEC (n = 20)
		MIC90 (μg/ml)	% Rc	MIC90 (μg/ml)	% R	MIC90 (μg/ml)	% R	MIC90 (μg/ml)	% R	MIC90 (μg/ml)	% R	MIC90 (μg/ml)	% R
AMP	≥32	4	0	>1,024	49.4	4	0	4	0	>1,024	52.8	>1,024	60
NAL	≥32	16	0	>1,024	71.1	128	66.7	16	0	>1,024	38.5	>1,024	55
TET	≥16	2	0	256	52.5	1	0	2	0	256	59.2	256	55
DOX	≥16	4	0	128	48.5	4	0	2	0	64	51.9	256	60
T/S	≥8/152	1	0	64	58.9	1	0	2	0	128	46	>1,024	65
CFO	≥32	0.06	0	0.5	6.2	0.06	0	0.06	0	0.25	4.8	64	20
RIF	≥32	32	29.4	32	19.6	8	0	16	0	32	15.5	16	0
CIP	≥4	0.03	0	256	27.8	0.25	0	0.03	0	64	17.5	512	35
LEV	≥8	0.125	0	8	40.8	0.5	0	0.06	0	8	20.1	128	45
AZM	≥8d	2	0	32	24.5	2	0	1	0	32	16.1	64	40

^aBP, CLSI breakpoint (resistant strains are at or above the BP, and susceptible strains are below the breakpoint).

^bn, total number of isolates studied.

^c% R, percent resistant, i.e., the MIC was above the CLSI breakpoint.

^dBased on established values for nonenteric bacterial pathogens.