TABLE 3.

Frequency of phenotypic resistance among non-typhoidal Salmonella enterica isolates collected from Cambodian informal markets^a.

			Percentage of resistant isolates (n. of isolates)
Serotype	Multidrug resistanceb (n. of isolates)	No. of isolates tested	Aminoglycosides		Beta-lactam					Sulf- onamide	Trime- thoprim	Macrolide	Phenicol	Quinolone		Tetra- cycline
			GEN	STR	AMC	FOX	CRO	XNL	AMP	FIS	SXT	AZM	CHL	CIP	NAL	TET
Rissen	16	19	0	21 (4)	0	0	0	0	95 (18)	0	63 (12)	0	58 (11)	0	0	95 (18)
Hvittingfoss	0	13	0	0	0	8 (1)	0	0	0	0	0	0	0	0	0	0
Corvallis	0	10	0	30 (3)	0	0	0	0	0	0	0	0	0	0	0	30 (3)
Krefeld	7	8	0	87 (7)	0	0	0	0	87 (7)	0	0	0	0	0	0	87 (7)
Weltevreden	0	6	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Altona	0	6	0	0	0	17 (1)	17 (1)	17 (1)	0	0	0	0	17 (1)	0	0	0
Mbandaka	0	5	0	0	0	0	0	0	0	0	0	0	0	0	0	100 (5)
Typhimurium	1	3	0	0	0	0	0	0	33 (1)	0	33 (1)	0	0	0	0	33 (1)
Javiana	0	2	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Uganda	0	2	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Derby	2	2	2 (100)	0	0	0	100 (2)	100 (2)	100 (2)	0	0	0	100 (2)	0	0	100 (2)
Anatum	0	1	0	0	0	0	0	0	100 (1)	0	0	0	0	0	0	100 (1)
Braenderup	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Lexington	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Virchow	0	1	0	100 (1)	0	0	0	0	0	0	0	0	0	0	0	0
I 4,[5],12:i:-	1	1	0	100 (1)	0	0	0	0	100 (1)	0	0	0	0	0	0	100 (1)
Total	27	81	2 (2)	20 (16)	0	20 (2)	4 (3)	4 (3)	37 (30)	0	16 (13)	0	17 (14)	0	0	47 (38)

^aGEN, gentamicin; STR, streptomycin; AMC, amoxicillin-clavulanic acid; FOX, cefoxitin; CRO, ceftriaxone; XNL, ceftiofur; AMP, ampicillin; FIS, sulfisoxazole; SXT, trimethoprim-sulfamethoxazole; AZM, azithromycin; CHL, chloramphenicol; CIP, ciprofloxacin; NAL, nalidixic acid; TET, tetracycline.

^bMultidrug resistant (i.e., resistance to three or more antimicrobial classes) (Food and Drug Administration, 2015).