Streptococcus suis Serotype 2 Capsule In Vivo

Abstract

Many Streptococcus suis isolates from porcine endocarditis in slaughterhouses have lost their capsule and are considered avirulent. However, we retrieved capsule- and virulence-recovered S. suis after in vivo passages of a nonencapsulated strain in mice, suggesting that nonencapsulated S. suis are still potentially hazardous for persons in the swine industry.

Keywords

• Streptococcus suis
• bacterial capsule
• zoonosis
• mutation
• bacteria
• pigs