Table 3.

Antimicrobial resistance pattern by Salmonella serotype (N = 49)

Serotype	N	MDR only* (N = 20), N (%)	DCS only† (N = 4), N (%)	Both MDR and DCS (N = 10), N (%)	No resistance (N = 15), N (%)
Non-typhoidal	35	19 (54)	0 (0)	1 (3)	15 (43)
Enteritidis	21	17 (81)	0 (0)	0 (0)	4 (19)
Typhimurium	13	1 (8)	0 (0)	1 (8)	11 (84)
I 4,[5],12:i:-	1	1 (100)	0 (0)	0 (0)	0 (0)
Typhi	14	1 (7)	4 (29)	9 (64)	0 (0)

DCS = decreased ciprofloxacin susceptibility; MDR = multi-drug resistant.

^*MDR isolates exhibited resistance to at least one antibiotic in three or more drug classes. Nineteen non-typhoidal isolates were resistant to ampicillin, chloramphenicol, and trimethoprim-sulfamethoxazole. One Salmonella enteritidis isolate was resistant to ampicillin, streptomycin, sulfisoxazole, and tetracycline, but susceptible to chloramphenicol and trimethoprim-sulfamethoxazole.

^†Isolates with DCS exhibited resistance to nalidixic acid and were intermediate to ciprofloxacin.