Abstract
Residents who received second mRNA COVID-19 vaccine booster doses during March 29–June 15, 2022, with follow-up through July 25, 2022, were found to have 60-day VE of 25.8% against SARS-CoV-2 (the virus that causes COVID-19 infection), 73.9% against severe COVID-19 outcomes (a combined endpoint of COVID-19–associated hospitalizations or deaths), and 89.6% against COVID-19–associated deaths alone. During this period, subvariants BA.2 and BA.2.12.1 (March–June 2022), and BA.4 and BA.5 (July 2022) of the B.1.1.529 and BA.2 (Omicron) variant were predominant.
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CITATION STYLE
McConeghy, K. W., White, E. M., Blackman, C., Santostefano, C. M., Lee, Y., Rudolph, J. L., … Gravenstein, S. (2022). Effectiveness of a Second COVID-19 Vaccine Booster Dose Against Infection, Hospitalization, or Death Among Nursing Home Residents — 19 States, March 29–July 25, 2022. MMWR. Morbidity and Mortality Weekly Report, 71(39), 1235–1238. https://doi.org/10.15585/mmwr.mm7139a2
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