TABLE 1.

Sequences of primers used for detection of bla genes or genotyping of strains

ESBL or region	Primer	Sequence	Position	GenBank accession no. or reference
TEM	TEM-A	5′-ATA AAA TTC TTG AAG AC-3′	1-17	X54604.1
	TEM-B	5′-TTA CCA ATG CTT AAT CA-3′	1075-1059
SHV	SHV-FOR	5′-TGGTTATGCGTTATATTCGCC-3′	69-89	X98100.1
	SHV-REV	5′-GCTTAGCGTTGCCAGTGCT-3′	936-918
PRE-1	PER-1-FOR	5′-AATTTGGGCTTAGGGCAGAA-3′	278-306	Z21957
	PER-1-REV	5′-ATGAATGTCATTATAAAAGC-3′	1211-1192
VEB-1	VEB-1-FOR	5′-CGACTTCCATTTCCCGATGC-3′	226-245	AF220758
	VEB1-REV	5′-GGACTCTGCAACAAATACGC-3′	868-849
CTX-M-3	M13U	5′-GGTTAAAAAATCACTGCGTC-3′	65-84	X92506
	M13L	5′-TTGGTGACGATTTTAGCCGC-3′	928-909
CTX-M-9	M9U	5′-ATGGTGACAAAGAGAGTGCA-3′	1-20	AF252621.2
	M9L	5′-CCC TTC GGC GAT GAT TCT C-3′	870-852
CTX-M-2	M25U	5′-ATGATGACTCAGAGCATTCG-3′	304-323	AJ416343.1
	M25L	5′-TGGGTTACGATTTTCGCCGC-3′	1169-1150
VEBcas	VEBcas-F	5′-GTTAGCGGTAATTTAACCAGATAG-3′	11-34	AY027870.1
	VEBcas-B	5′-CGGTTTGGGCTATGGGCAG-3′	1081-1063
Rep-PCR	ERIC2	5′-AAGTAAGTGACTGGGGTGAGCG-3′		22
	REP 2-1	5′-ICG ICT TAT CIG GCC TAC-3′		2
	VEBINV1	5′-CAGTTTGAGCATTTGAATACAC-3′		16
	VEBINV2	5′-AGC GTA TTT GTT GCA GAG TCC-3′
Variable region of integron	5-CS	5′-GGC ATC CAA GCA GCA AGC-3′	1163-1180	AF205943
	3-CS	5′-AAG CAG ACT TGA CCT GAT-3′	9231-9214
VEB clone	VEBc-R	5′-CCGGGATCCATGAAAATCGTAAAAAGGATATTATT-3′		AF220758
	VEBc-L	5′-CCCAAGCTTTTATTTATTCAAATAGTAATTCCACG-3