Table 2.

Primers used virulence factor detection

Virulence factor	Primer sequence (5′→3′)	PCR product size, bp	Reference
F18	TGGTAACGTATCAGCAACTA	313	[20]
	ACTTACAGTGCTATTCGACG
F4	GCCTGGATGACTGGTGATTT	709	[21]
	TCTGACCGTTTGCAATACCC
STa	CAACTGAATCACTTGACTCTT	158	[20]
	TTAATAACATCCAGCACAGG
STb	TGCCTATGCATCTACACAAT	113	[20]
	CTCCAGCAGTACCATCTCTA
Stx2 (VT2)	GTTTTTCTTCGGTATCCTATTCC	484	[22]
	GATGCATCTCTGGTCATTGTATTAC
uidA	TGTTACGTCCTGTAGAAAGCCC	153	[23]
	AAAACTGCCTGGCACAGCAATT