Table 2.
Characteristics of Surveys to Certify Eradication of Smallpox
| Characteristic | Comment |
|---|---|
| Clinical features surveyed | Fever and rash; facial pockmarks |
| Target group | School-age children |
| Diagnostic alternatives | Chickenpox, monkeypox |
| Environmental surveys for microbe | No |
| Laboratory confirmation | Yes |
| Rumor registers | Yes |
| Reward for reporting cases | Yes |
| Minimum interval since last case before certification | 2 y |
| Continuing research | Yes |