TABLE 1.

Toxin production by C. perfringens genotypes A, B, C, and D

ToxinProduction by indicated genotype
A (n = 10)B (n = 19)C (n = 34)D (n = 39)
CPAa1.6 ± 0.31.3 ± 0.22.1 ± 0.81.9 ± 0.4
PFOa2.6 ± 0.62.3 ± 0.32.2 ± 0.31.9 ± 0.4
ETXbNDc6.5 ± 1.2ND9.9 ± 3.1
CPBbND16.5 ± 2.312.3 ± 2.2ND
CPB2bND7.6 ± 0.8d2.9 ± 0.8e1.2 ± 0.4
  • a Values are activity levels (U/mg total protein, 10−3) for CPA or titers (log2) for PFO.

  • b Values are micrograms of protein/ml.

  • c ND, not determined.

  • d Statistically significant when compared with genotype C or D.

  • e Statistically significant when compared with genotype D.