Table 1.

S. suis serotype 2 strains used in this study.

Strain	General Characteristics	Reference
89-1591	Virulent North American ST25 strain isolated from a case of pig sepsis in Canada	[56]
89-1591ΔcpsF	Non-encapsulated isogenic mutant derived from 89-1591; in frame deletion of cpsF gene	[40]
89-1591Δlgt	Isogenic mutant strain derived from 89-1591; in frame deletion of lgt gene	[51]
P1/7	Classical highly virulent ST1 strain isolated from a pig with meningitis in the United Kingdom, used for comparison	[59]