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Revised C. perfringens toxin-based typing scheme.
| Toxinotype | Toxin Production | |||||
|---|---|---|---|---|---|---|
| α-toxin (plc or cpa) | β-toxin (cPb) | ε-toxin (etx) | ι-toxin (iap and ipb) | CPE (cpe) | NetB (netB) | |
| A | + | - | - | - | - | - |
| B | + | + | + | - | - | - |
| C | + | + | - | - | +/− | - |
| D | + | − | + | − | +/− | − |
| E | + | - | - | + | +/− | - |
| F | + | - | - | - | + | - |
| G | + | − | − | − | − | + |
+ means this toxin is produced by all strains of this type; − means this toxin is produced by no strains of this type ; +/− means this toxin is produced by some strains of this type
