mortality/aging
• mice infected subcutaneously with the human pathogenic group A streptococcus (GAS) strain UMAA2616 exhibit 75% of mortality unlike similarly treated wild-type mice that exhibit 20% mortality
• mice infected subcutaneously with GAS strain MGAS166 exhibit 35% to 100% of mortality unlike similarly treated wild-type mice that exhibit 30% mortality
• however, mice exhibit normal mortality when infected with GAS strain UMAA2641, which lacks the Ska gene, or when infected intravenously with UMAA2616
• mice infected subcutaneously with PAM-expressing GAS strain AP53 exhibit 80% mortality compared to 20% in similarly treated wild-type mice
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immune system
• mice infected subcutaneously with the human pathogenic group A streptococcus (GAS) strain UMAA2616 exhibit 75% of mortality unlike similarly treated wild-type mice that exhibit 20% mortality
• mice infected subcutaneously with GAS strain MGAS166 exhibit 35% to 100% of mortality unlike similarly treated wild-type mice that exhibit 30% mortality
• however, mice exhibit normal mortality when infected with GAS strain UMAA2641, which lacks the Ska gene, or when infected intravenously with UMAA2616
• mice infected subcutaneously with PAM-expressing GAS strain AP53 exhibit 80% mortality compared to 20% in similarly treated wild-type mice
• mice infected subcutaneously with GAS exhibit increased bacterial colonies in the spleen compared to similarly infected wild-type mice
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