TABLE 1.

Characteristics of V. parahaemolyticus isolates from 63 patients in the Hat Yai hospital from 2003 to 2004^a

Patient group	No. of patient specimens	No. of V. parahaemolyticus isolates (no. of isolates per patient group)b	Presence of gene		GS-PCR result	ORF8 result	O:K serotypec	AP-PCR patternsd
			tdh	trh
1	16	160	+	-	+	+	3:6	Identical
2	6	60	+	-	+	-	3:6	Identical
3	8	80	+	-	+	-	1:25	Identical
4	3	30	+	-	+	+	1:UT	Identical
5	3	30	-	-	-	-	11:UT	Identical
6	3	30	+	-	-	-	4:8	Identical
7	2	20	+	-	+	+	4:68	Identical
8	1	10	+	-	-	-	8:21	Identical
9	2	10 (9, 1)	+	-	+	+	3:6	Identical
		10 (1, 9)	+	-	+	-	3:6
10	1	9	+	+	-	-	4:67	Identical
		1	-	+	-	-	4:67
11	1	9	+	-	+	+	1:25	Identical
		1	+	-	+	+	1:UT
12	1	9	+	+	-	-	3:56	Identical
		1	+	+	-	-	R:56
13	2	6 (5, 1e)	+	-	-	-	4:8	Nonidentical
		13 (5, 8)	+	-	-	-	1:56
14	1	5	+	-	-	-	3:5	Nonidentical
		5	+	-	-	-	4:8
15	1	6	+	+	-	-	11:UT	Nonidentical
		3	+	+	-	-	3:56*
		1	+	+	-	-	R:56*
16	1	3	+	-	+	-	3:6*	Nonidentical
		2	+	-	+	-	4:8*
		5	+	-	-	-	4:8
17	1	1	-	+	-	-	1:UT	Nonidentical
		1	-	+	-	-	3:UT
		8	+	+	-	-	5:UT
18	1	9	+	-	+	-	1:25	Nonidentical
		1	-	-	-	-	4:67
19	3	13 (9, 2, 2)	+	-	+	+	3:6	Nonidentical
		17 (1, 8, 8)	+	-	-	-	4:8
20	2	12 (8, 4)	+	-	+	+	3:6	Nonidentical
		8 (2, 6)	+	-	-	-	3:5
21	1	3	+	-	+	+	3:6	Nonidentical
		1	+	-	-	-	3:7
		6	+	-	-	-	4:8
22	1	5	+	-	+	-	1:25*	Nonidentical
		1	+	-	+	+	3:6*
		2	+	-	-	-	3:5*
		2	+	-	-	-	3:UT*
23	1	3	+	-	+	+	3:6	Nonidentical
		7	+	+	-	-	11:UT
24	1	9	+	-	+	+	4:68	Nonidentical
		1	-	-	-	-	11:UT

^a+, present; -, absent.

^bThe first, second, or third number in parentheses corresponds to the number of isolates from patient specimen 1, 2, or 3, respectively, that shared the same characteristics within each patient group. The total number of isolates collected per patient can be obtained by adding the first, second, or third number in parentheses in the first row of patient group data in column 3 to the corresponding first, second, or third number in parentheses in the second row of patient group data in the column. The total number or isolates per patient specimen is thus equal to 10, with the exception of the data for one patient in group 13 (see footnote e).

^cUT, untypeable; R, rough. *, identical AP-PCR patterns for the indicated serotype were observed within a patient group (see footnote d for exceptions observed for patient group 22).

^dIdentical, all 10 isolates showed identical AP-PCR patterns; nonidentical, the AP-PCR patterns were not identical for the subgroups in the patient group except as follows: for patient group 22, AP-PCR patterns for O1:K25 and O3:K6 were identical, and AP-PCR patterns for O3:K5 and O3:KUT were identical, but the AP-PCR patterns for O1:K25 and O3:K6 differed from the AP-PCR patterns for O3:K5 and O3:KUT.

^eOnly nine isolates were obtained from this specimen.