Table 2.

Decreased SV40 infectivity after MgCl2 and heat inactivation

Input SV40 (pfu)3.0 × 1073.0 × 1053.0 × 103
Residual SV40 (pfu)6.0 × 106 ± 1.05 × 1063.9 × 104 ± 0.84 × 1042.4 × 102 ± 0.91 × 102