Table 2. Virucidal activities of WAHS, Purelox, and ethanol for MNV.
| Disinfectant (dilution ratio) |
pH | Residual chlorine concentration (ppm) |
Reaction Time (min) |
Reduction in titer (log10
PFU/ml)1) |
|
|---|---|---|---|---|---|
| Feces emulsion | |||||
| Absennce | Presence | ||||
| WAHS | 6.0–6.4 | 60 | 0.5 | >5 | 2.3 |
| 1 | >5 | 2.5 | |||
| 5 | >5 | >5 | |||
| Purelox (1:200) | 10.2 | >200 | 0.5 | >5 | >5 |
| 1 | >5 | >5 | |||
| 5 | >5 | ND | |||
| Purelox (1:400) | 9.7 | 150–200 | 0.5 | >5 | >5 |
| 1 | >5 | >5 | |||
| 5 | ND2) | ND | |||
| Purelox (1:600) | 9.5 | 100 | 0.5 | >5 | 2.6 |
| 1 | >5 | 3.8 | |||
| 5 | ND | >5 | |||
| Purelox (1:800) | 9.4 | 70 | 0.5 | >5 | 2.0 |
| 1 | >5 | 2.2 | |||
| 5 | ND | >5 | |||
| Purelox (1:1,000) | 9.3 | 60 | 0.5 | 3.4 | 1.0 |
| 1 | 3.8 | 1.4 | |||
| 5 | 4.5 | 2.2 | |||
| 70% Ethanol | 0.5 | >5 | >5 | ||
| 1 | >5 | ND | |||
| 5 | >5 | ND | |||
1)MNV titer was determined by plaque assay. 2)ND, not determined.