TABLE 1.
Expt | N0 (PFU/ml) | tf (min) |
---|---|---|
UV-1 | 5.82 × 105 | 60.0 |
UV-2 | 2.14 × 106 | 48.0 |
UV-M-1 | 7.12 × 106 | 12.4 |
UV-M-2 | 5.53 × 106 | 11.8 |
N0, initial virus titer; tf, maximum time for which viruses were exposed to UV-C. Other conditions equal for all experiments: UV light intensity I, 0.043 ± 0.003 mW/cm2; pH 8.0 ± 0.2; PBS concentration, 0.01 M; ambient temperature, 22 ± 2°C.