Table 3 Relative infectiousness of smallpox
Severity type | Base | Multiplier |
|---|---|---|
Ordinary | 0.07 | 1.00 |
Modified | – | 0.33 |
Hemorrhagic | – | 5.00 |
Days after incubation period | Infectiousness | Â |
|---|---|---|
≤1 | 0.0 |  |
2 | 1.0 × base × multiplier |  |
3 | 2.0 × base × multiplier |  |
4–8 | 4.0 × base × multiplier |  |
9 | 3.0 × base × multiplier |  |
10 | 2.0 × base × multiplier |  |
11–12 | 1.0 × base × multiplier |  |
13≤ | 0.0 |  |