Table 1.

Identification of V. parahaemolyticus virulence-associated genes in a collection of V. parahaemolyticus clinical and environmental isolates using PCR assays.

Source	Serotype	No. isolates	No. of isolates with virulence genes (%)
			ORF8	tdh	trh	T3SS1	T3SS2α	T3SS2β
Clinical	O3:K6	14	14 (100)	13 (93)	0 (0)	14 (100)	13 (93)	0 (0)
	O4:K8	4	0 (0)	4 (100)	0 (0)	4 (100)	4 (100)	0 (0)
	O4:K12	10	1 (10)	10 (100)	9 (90)	10 (100)	0 (0)	9 (90)
	Other serotypes	48	9 (19)	29 (60)	14 (29)	48 (100)	12 (25)	22 (46)
Total clinical	All serotypes	76	25 (32)	57 (74)	23 (30)	77 (100)	29 (38)	31 (40)
Environmental	O3:K6	1	0 (0)	0 (0)	0 (0)	1 (100)	0 (0)	0 (0)
	Other serotypes	56	0 (0)	0 (0)	2 (3)	56 (98)	0 (0)	2 (3)
Total environmental	All serotypes	57	0 (0)	0 (0)	2 (3)	57 (100)	0 (0)	2 (3)