Table 3 Summary of parameters for 51 post-World War II Western European and North American smallpox outbreaks.
Number of Outbreaks Identified | Median for Initial R | Median for Number of Generations | Median for Number of Total Cases | Median for Number of Deaths | |
|---|---|---|---|---|---|
Overall | 51 | 2 | 1 | 4 | 1 |
Reporting Status | |||||
Incompletely reported | 21 | 0 | 0 | 1 | 0 |
Reported in detail | 30 | 2 | 2 | 13 | 2 |
Outbreak Setting | |||||
Community | 11 | 1 | 1 | 2 | 1 |
Mixed | 8 | 2 | 3 | 22 | 3 |
Hospital | 11 | 12 | 2 | 20 | 4 |
Clinical Presentation of Index Case | |||||
Hemorrhagic | 6 | 5 | 2 | 16.5 | 4 |
Atypical* | 13 | 4 | 3 | 27 | 4 |
Typical | 9 | 1 | 1 | 2 | 1 |
Index Case Identified as Smallpox | |||||
No | 14 | 5 | 3 | 27.5 | 6 |
Yes | 16 | 1 | 1 | 3 | 1 |