| Characteristic | Workplace | Dormitory | Family | |
| Number of clusters | 56 | 26 | 76 | |
| Number of listed contacts | 1273 | 780 | 896 | |
| Age group | 0 - 5 | 13 (6.56) | ||
| 5 - 13 | 23 (11.61) | |||
| 13 - 21 | 4 (1.36) | 29 (14.64) | ||
| 21 - 45 | 253 (85.76) | 165 (82.08) | 109 (55.05) | |
| 46 - 60 | 36 (12.20) | 32 (15.92) | 11 (5.55) | |
| 60 - 80 | 2 (0.68) | 4 (1.99) | 12 (6.06) | |
| 80 - 100 | 1 (0.50) | |||
| Gender | Female | 1 (0.33) | 87 (43.93) | |
| Male | 294 (99.66) | 201 | 111 (56.06) | |
| Number tested positive among contacts | 295/1273 (23.17%) | 201/780 (25.76%) | 198/896 (22.09%) | |
| Incubation period Median (IQR ) | 8 (IQR 4.00 - 15.00) | 8 (IQR 4.00 - 17.00) | 4 (IQR 2.00 - 7.00) | |
| Among contacts tested positive number within 14 days of exposure. | 213/295 (72.20) | 128/201 (63.68) | 183/198 (92.42) | |
| Secondary attack rate, (Mean, 95% CI) | 41.60 (95% CI: 0.34 - 0.48) | 52.00 (95% CI: 0.40 - 0.63) | 33.19 (95% CI: 0.27 - 0.38) | |