| A | B |
|---|
| S. Pyrogenes | most serious streptococci, strict parasite, inhabits throat, nasophayrnx, occasionally skin |
| C-carbohydrates (s. pyrogenes) | protect against lysozyme |
| Fimbriae (s. pyrogenes) | adherence |
| M-protein (s. pyrogenes) | contributes to resistance to phagocytosis |
| Hyaluronic acid capsule (s. pyrogenes) | provokes no immune response |
| Streptolysins (s. pyrogenes) | hemolysins; streptolysin O (SLO) and streptolysin S (SLS) – both cause cell and tissue injury |
| Erythrogenic toxin (pyrogenic) (s. pyrogenes) | induces fever and typical red rash - gene for toxin carried by lysogenic phage |
| Superantigens (s. pyrogenes) | strong monocyte and lymphocyte stimulants; cause the release of tissue necrotic factor |
| Streptokinase (s. pyrogenes) | digests fibrin clots |
| Hyaluronidase (s. pyrogenes) | breaks down connective tissue |
| DNase (s. pyrogenes) | hydrolyzes DNA |
