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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. LewisComments to Author , Julie Loughran, Li Deng, Jasmine Varghese, Shauna Clark, Casandra Harrison, Molly Gacetta, John A. Jernigan, and Katherine E. Fleming-DutraComments to Author 
Author affiliations: Public Health Seattle and King County, Seattle, Washington, USA (J.W. Lewis, J. Loughran, S. Clark, C. Harrison, M. Gacetta); Centers for Disease Control and Prevention, Atlanta, Georgia, USA (L. Deng, J. Varghese, J.A. Jernigan. K.E. Fleming-Dutra)

Main Article

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).

Main Article

Page created: September 13, 2022
Page updated: October 24, 2022
Page reviewed: October 24, 2022
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
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