Table 2. Typing obtained with 84 isolates of S . suis using the multiplex PCR assays and the agglutination test with serotype-specific antisera.

Serotype using antiserum	No. of isolates tested	Serotype using multiplex PCR
		1&14	1/2& 2	5	7	8	9	10	11	12	15	16	21	22	24	29	30	31
1	1	1
14	1	1
2	8		8
1/2	3		3
5	8			8
7	3				3
8	2					2
9	1						1
10	3							3
11	9								9
12	8									8
15	1										1
16	1											1
21	1												1
22	1													1
24	4														4
29	3															3
30	8																8
31	2																	2
29/21*	16															16

^*agglutinating with both serotypes 29 and 21 antisera and serotype 29 positive in the third multiplex PCR assay.