Genotypic diversity of Streptococcus suis and the S. suis-like bacterium Streptococcus ruminantium in ruminants

Table 4 Prevalence and distribution of cps types in 76 ruminant S. ruminantium isolates

cps type^a	No. of isolates
cps type^a	Total, n = 76 (%)	Disease sites^c, n = 34 (%)	Healthy animal and environment^d, n = 23 (%)
IA (33^b)	16 (21.1)	8 (23.5)	5 (21.7)
IB	20 (26.3)	9 (26.5)	7 (30.4)
IC (33^b)	1 (1.3)	0	0
ID	1 (1.3)	0	1 (4.3)
IIA	11 (14.5)	5 (14.7)	3 (13.0)
IIB	10 (13.2)	5 (14.7)	3 (13.0)
III	2 (2.6)	2 (5.9)	0
UT	15 (19.7)	5 (14.7)	4 (17.4)

UT: untypable.
^aTypes based on the S. ruminantium cps gene cluster typing system developed in this study.
^bS. ruminantium cps types IA and IC were classified as S. suis cps type 33 [23].
^cHeart, lung, liver abscess, articular cavity or abscess in tympanic cavity (Table 1 and Additional file 1).
^dFour of the 64 isolates collected by the diagnostic service of NIAH-Japan (Table 1 and Additional file 1) and 19 of the 22 S. ruminantium isolates collected from cattle tonsils (Additional file 2, three isolates were from a cow with mastitis or gastroenteritis).

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