TABLE 3.
Lesion severity at death induced by PRV strains
| Strain | na | Lesion severity (%)b
|
|||
|---|---|---|---|---|---|
| Severe | Moderate | Mild | No lesion | ||
| PRV-Becker | 25 | 100 | 0 | 0 | 0 |
| Kaplan | 7 | 100 | 0 | 0 | 0 |
| NIA3 | 7 | 100 | 0 | 0 | 0 |
| PRV-158 | 7 | 100 | 0 | 0 | 0 |
| PRV-98 (gI null) | 7 | 42.9 | 14.3 | 28.6 | 14.3 |
| PRV-160 (Us9 null) | 21 | 14.3 | 42.9 | 42.9 | 0 |
| PRV-91 (gE null) | 25 | 8.0 | 28.0 | 56.0 | 8.0 |
| PRV-BaBe | 7 | 14.3 | 28.6 | 28.6 | 28.6 |
| PRV-Bartha | 25 | 0 | 0 | 0 | 100 |
a
That is, the total number of mice (n) used in these calculations.
b
The percentage values were calculated by dividing the number of animals falling into a particular category by the total number of animals observed and then multiplying that value by 100. The lesion severity was classified as follows: severe = red, fully crusted dermatome lesion with stiff, rough texture; moderate = dermatome lesion with combination of smooth redness and rough texture; mild = redness along dermatome (or at primary site of inoculation only) with little change in skin texture; and no lesion = no change from normal skin color or texture.