Table 3.
Self-reported symptom status for primary and secondary cases, California and Colorado, January–April 2021.
|
Not Vaccinated N (%) |
Recently Vaccinated N (%) |
Partially Vaccinated N (%) |
Fully Vaccinated N (%) |
Overall N (%) |
|
|---|---|---|---|---|---|
| All Cases | (n = 270) | (n = 20) | (n = 9) | (n = 9) | (n = 308) |
| Any symptoms | 258 (96%) | 20 (100%) | 6 (67%) | 6 (67%) | 289 (94%) |
| Symptoms meeting CSTE case definition* |
251 (93%) | 20 (100%) | 6 (67%) | 5 (56%) | 282 (92%) |
| Received medical care† | 23 (9%) | 6 (30%) | 3 (33%) | 1 (11%) | 33 (11%) |
| Primary Cases | (n = 126) | (n = 12) | (n = 6) | (n = 3) | (n = 147) |
| Any symptoms | 123 (98%) | 12 (100%) | 4 (67%) | 1 (33%) | 140 (95%) |
| Symptoms meeting CSTE case definition* |
122 (97%) | 12 (100%) | 4 (67%) | 1 (33%) | 139 (95%) |
| Received medical care† | 16 (13%) | 5 (42%) | 2 (33%) | 0 (0%) | 23 (16%) |
| Secondary Cases | (n = 144) | (n = 8) | (n = 3) | (n = 6) | (n = 161) |
| Any symptoms | 135 (94%) | 8 (100%) | 2 (67%) | 5 (83%) | 149 (93%) |
| Symptoms meeting CSTE case definition* |
129 (90%) | 8 (100%) | 2 (67%) | 4 (67%) | 143 (89%) |
| Received medical care† | 7 (5%) | 1 (13%) | 1 (33%) | 1 (17%) | 10 (11%) |
*Using the interim case definition developed by CSTE and CDC [27].
†Participants self-reported if they sought medical care, including telehealth, primary care provider, urgent care, visited the emergency department, or were hospitalized during the course of their illness as part of the questionnaire administered on day 14 of enrollment. Abbreviations: CSTE – Council of State and Territorial Epidemiologists; CDC – US Centers for Disease Control and Prevention.