Volume 28, Number 11—November 2022
Research Letter
Vaccine Effectiveness against SARS-CoV-2 Variant P.1 in Nursing-Facility Residents, Washington, USA, April 2021
James W. Lewis
, Julie Loughran, Li Deng, Jasmine Varghese, Shauna Clark, Casandra Harrison, Molly Gacetta, John A. Jernigan, and Katherine E. Fleming-Dutra
, Julie Loughran, Li Deng, Jasmine Varghese, Shauna Clark, Casandra Harrison, Molly Gacetta, John A. Jernigan, and Katherine E. Fleming-Dutra
Table
Characteristics of residents in a skilled nursing facility included in a SARS-CoV-2 vaccine effectiveness analysis, Washington, USA, April 2021*
| Characteristic | No. (%) fully vaccinated | No. (%) unvaccinated |
|---|---|---|
| Residents present during outbreak |
43 |
16 |
| Sex | ||
| M | 15 (35) | 7 (44) |
| F |
28 (65) |
9 (56) |
| Age group, y | ||
| 60–74 | 7 (16) | 4 (25) |
| 75–84 | 14 (33) | 6 (38) |
| >85 |
22 (51) |
6 (38) |
| Race† | ||
| Asian | 5 (12) | 0 |
| Black or African-American | 0 | 2 (13) |
| White | 36 (84) | 13 (81) |
| Other | 1 (2) | 0 |
| Unknown |
1 (2) |
1 (6) |
| Underlying health conditions | ||
| Hypertension | 32 (75) | 10 (63) |
| Neurologic disease | 32 (75) | 15 (94) |
| Cardiovascular disease | 27 (63) | 13 (81) |
| Diabetes | 14 (33) | 3 (19) |
| Asthma, COPD, sleep apnea, other chronic respiratory disease | 12 (28) | 7 (44) |
| Obesity | 7 (16) | 4 (25) |
| Autoimmune condition | 5 (12) | 0 |
| Cancer | 2 (5) | 1 (6) |
| Immunosuppressive disease or medication | 2 (5) | 0 |
| End-stage renal disease requiring dialysis | 0 | 1 (6) |
| Other, nonneurologic condition | 42 (98) | 16 (100) |
| >2 underlying conditions |
43 (100) |
16 (100) |
| Unit | ||
| Unit A, long-stay unit | 15 (35) | 4 (25) |
| Unit B, long-stay unit | 16 (37) | 4 (25) |
| Unit C, short-stay unit | 10 (23) | 4 (25) |
| Unit D, short-stay unit | 2 (5) | 4 (25) |
| History of prior SARS COV-2 infection‡ |
13 (30) |
3 (19) |
| Tested positive for SARS COV-2 during outbreak period | 7 (16) | 10 (63) |
*Four residents who were partially vaccinated (received 1 dose of COVID-19 vaccine) were excluded from this analysis. COPD, chronic obstructive pulmonary disease. †No residents reported Hispanic or Latino ethnicity. Data for ethnicity was highly missing; 25 (58%) vaccinated residents and 8 (50%) unvaccinated residents were of unknown ethnicity. ‡All previous infections were >3 mo before start of outbreak (before January 13, 2021).
Page created: September 13, 2022
Page updated: October 24, 2022
Page reviewed: October 24, 2022
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