Clonal dissemination of the multi-drug resistant Salmonella enterica serovar Braenderup, but not the serovar Bareilly, of prevalent serogroup C1 Salmonella from Taiwan

Table 3 Characteristics of MDR plasmids from 17 S. Braenderup isolates.

			Antimicrobial resistance gene
Strains	Plasmid RFLP profile	Antibiogram¹	aadA2	blaTEM	blaCMY-2	Plasmid size (kb)	Conjugation rate	Inc³	Class I integron	IS 26	Month of isolation	Number of isolates
S. Braenderup 2	1a	ACKTSSxt	+	+	-	137.4	4.22 × 10^-6	F1A/1B	+	ND	2004.8	2
E. coli/p2		ACKSxtT								+
S. Braenderup 96	1a	ACKSSxtT	+	+	-	137.4	6.04 × 10^-6	F1A/1B	+	ND	2004.8
E. coli/p96		ACKSxtT								+
S. Braenderup 24	1b	ASSxt	+	+	-	122.6	8.25 × 10^-6	F1A/1B	+	ND	2004.8	1
E. coli/p24		ASxt								+
S. Braenderup 87⁴	1d	ASSxtT	+	+	-	102.5	--	F1A/1B	+	ND	2004.7	7
E. coli/p30		ASxt								+
S. Braenderup 12	1e	ASSxtT	+	+	-	99.1	-	F1A/1B	+	ND	2005.4	3
E. coli/p12		ASxt								+
S. Braenderup 11	1g	ASxtT	-	+	-	104.4	-	F1A/1B	-	ND	2005.1	1
E. coli/p11		ASxt								+
S. Braenderup 13		ACSSxtT	+	+	+				+	ND	2004.7
E. coli/p13-1		A	-	-	+	75.5	8.41 × 10^-2	IncI1	-	-		1
E. coli/p13-2	1f	ACSxtT	+	+	-	127.8	-	F1A/1B	+	+		1
S. Braenderup 32		ASSxtT	+	+	+				+	ND	2005.9
E. coli/p32-1	2a	A	-	-	+	75.5	8.66 × 10^-2	IncI1	-	-		1
E. coli/p32-2	1d	ASxt	+	+	-	102.5	ND	F1A/1B	+	+		1
S. Braenderup 36		ASSxtT	+	+	+				+	ND	2005.5
E. coli/36-1	2b	A	-	-	+	85	1.28 × 10^-1	IncI1	-	-		1
E. coli/p36-2	1c	ASxt	+	+	-	104.8	-	F1A/1B	+	+		1

¹Abbreviation: A, ampicillin; C, chloramphenicol; K, kanamycin; S, streptomycin; Sxt, trimethoprim-sulfamethoxazole; T, tetracycline.
²ND, not determined; +, conjugative; -, .non-conjugative.
³Inc, plasmid incompatibility group.
⁴Other 6 isolates 30 from 2005/2, 31 from 2004/10, 35 from 2005/7, 37 from 2005/3, 44 from 2004/6, and 82 from 2004/7 were not tested for conjugation.
⁵Other 2 isolates 15 from 2005/5 and 21 from 2004/9 were not tested for conjugation.

ISSN: 1471-2180