Table 2. Fold change of Vero cytotoxicity after incubation in a buffer of pH(PBS) for 1 h at 37 C or 60 C.
Stx type | 37°C | 60°C |
Stx1a | 1.0a | 0.79a |
211 | 0.88a | 0.46a |
Stx2a | 0.94b | 0.62b |
122 | 0.74b | 0.48b |
The reduction in activity of the chimeric was significant at both temperatures (P<0.05).