Table 1.
Summary data of cases, dates of symptom onset, times to treatment, numbers of contacts, and estimated secondary cases in the absence of treatment.
| Case | Date of symptom onset (days after May 1st) | Days between appearance of symptoms and treatment | Number of contacts identified | Estimated secondary cases in the absence of treatment | ||
|---|---|---|---|---|---|---|
| Home | Work | Other | ||||
| 1 | 11 | 13 | 3 | 4 | 69 | 1.1 |
| 2 | 17 | 7 | 1 | 2 | 4 | 0.3 |
| 3 | 18 | 6 | 3 | 1 | 4 | 0.5 |
| 4 | 20 | 4 | 4 | 3 | 5 | 0.8 |
| 5 | 21 | 3 | 4 | 14 | 53 | 2.1 |
| 6 | 22 | 3 | 2 | 1 | 0 | 0.3 |
| 7 | 22 | 7 | 3 | 1 | 0 | 0.4 |
| 8 | 23 | 3 | 3 | 23 | 29 | 2.7 |
| 9 | 25 | 0 | 1 | 14 | 13 | 1.5 |
| 10 | 26 | 0 | 1 | 0 | 2 | 0.1 |
| 11 | 26 | 1* | 4 | 0 | 3 | 0.5 |
| 12 | 28 | 1 | 2 | 0 | 0 | 0.2 |
| 13 | 28 | 0 | 3 | 0 | 0 | 0.3 |
| 14 | 28 | 0 | 2 | 0 | 0 | 0.2 |
*prophylaxis was contraindicated in this individual; symptoms were identified 1 day after appearance and the individual ceased social activities at this point.