TABLE 1.
Characteristics of the 236 primary cases and their 546 adult household contacts
| Characteristics | Primary cases (N = 236) | Adult household contacts | |
|---|---|---|---|
| Secondary cases (N = 421) | Uninfected contacts (N = 125) | ||
| Age group, years | |||
| 0–17 | 67 (28.39) | 0 (0) | 0 (0) |
| 18+ | 169 (71.61) | 421 (100) | 125(100) |
| Sex | |||
| Male | 102 (43.22) | 169 (40.14) | 77 (61.6) |
| Female | 134 (56.78) | 252 (59.86) | 48 (38.4) |
| Community exposure | |||
| Yes | 89 (37.71) | 0 (0) | 0 (0) |
| No | 0 (0) | 421 (100) | 125(100) |
| Not determined | 147 (62.29) | 0 (0) | 0 (0) |
| Vaccination status a | |||
| Unvaccinated | 89 (37.71) | 98 (23.28) | 13 (10.4) |
| Partial | 7 (2.97) | 21 (4.99) | 4 (3.2) |
| Full | 84 (35.59) | 176 (41.81) | 58 (46.4) |
| Booster | 56 (23.73) | 126 (29.93) | 50 (40) |
| Symptom status | |||
| Symptomatic | 212 (89.83) | 366 (86.94) | ‐ |
| Asymptomatic | 24 (10.17) | 55 (13.06) | ‐ |
a
Partial vaccination was defined as an individual receiving only one‐dose inactivated vaccine. Full vaccination was defined as an individual receiving two doses of inactivated SARS‐CoV‐2 vaccines for at least 2 weeks. Booster vaccination was defined as a fully vaccinated individual receiving an additional dose of inactivated vaccine for at least 14 days.