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Covid-19 Vaccine Effectiveness in New York State.
Rosenberg, Eli S; Dorabawila, Vajeera; Easton, Delia; Bauer, Ursula E; Kumar, Jessica; Hoen, Rebecca; Hoefer, Dina; Wu, Meng; Lutterloh, Emily; Conroy, Mary Beth; Greene, Danielle; Zucker, Howard A.
Affiliation
  • Rosenberg ES; From the New York State Department of Health, Albany (E.S.R., V.D., D.E., U.E.B., J.K., R.H., D.H., M.W., E.L., M.B.C., D.G., H.A.Z.), and the University at Albany School of Public Health, State University of New York, Rensselaer (E.S.R., E.L.) - both in New York.
  • Dorabawila V; From the New York State Department of Health, Albany (E.S.R., V.D., D.E., U.E.B., J.K., R.H., D.H., M.W., E.L., M.B.C., D.G., H.A.Z.), and the University at Albany School of Public Health, State University of New York, Rensselaer (E.S.R., E.L.) - both in New York.
  • Easton D; From the New York State Department of Health, Albany (E.S.R., V.D., D.E., U.E.B., J.K., R.H., D.H., M.W., E.L., M.B.C., D.G., H.A.Z.), and the University at Albany School of Public Health, State University of New York, Rensselaer (E.S.R., E.L.) - both in New York.
  • Bauer UE; From the New York State Department of Health, Albany (E.S.R., V.D., D.E., U.E.B., J.K., R.H., D.H., M.W., E.L., M.B.C., D.G., H.A.Z.), and the University at Albany School of Public Health, State University of New York, Rensselaer (E.S.R., E.L.) - both in New York.
  • Kumar J; From the New York State Department of Health, Albany (E.S.R., V.D., D.E., U.E.B., J.K., R.H., D.H., M.W., E.L., M.B.C., D.G., H.A.Z.), and the University at Albany School of Public Health, State University of New York, Rensselaer (E.S.R., E.L.) - both in New York.
  • Hoen R; From the New York State Department of Health, Albany (E.S.R., V.D., D.E., U.E.B., J.K., R.H., D.H., M.W., E.L., M.B.C., D.G., H.A.Z.), and the University at Albany School of Public Health, State University of New York, Rensselaer (E.S.R., E.L.) - both in New York.
  • Hoefer D; From the New York State Department of Health, Albany (E.S.R., V.D., D.E., U.E.B., J.K., R.H., D.H., M.W., E.L., M.B.C., D.G., H.A.Z.), and the University at Albany School of Public Health, State University of New York, Rensselaer (E.S.R., E.L.) - both in New York.
  • Wu M; From the New York State Department of Health, Albany (E.S.R., V.D., D.E., U.E.B., J.K., R.H., D.H., M.W., E.L., M.B.C., D.G., H.A.Z.), and the University at Albany School of Public Health, State University of New York, Rensselaer (E.S.R., E.L.) - both in New York.
  • Lutterloh E; From the New York State Department of Health, Albany (E.S.R., V.D., D.E., U.E.B., J.K., R.H., D.H., M.W., E.L., M.B.C., D.G., H.A.Z.), and the University at Albany School of Public Health, State University of New York, Rensselaer (E.S.R., E.L.) - both in New York.
  • Conroy MB; From the New York State Department of Health, Albany (E.S.R., V.D., D.E., U.E.B., J.K., R.H., D.H., M.W., E.L., M.B.C., D.G., H.A.Z.), and the University at Albany School of Public Health, State University of New York, Rensselaer (E.S.R., E.L.) - both in New York.
  • Greene D; From the New York State Department of Health, Albany (E.S.R., V.D., D.E., U.E.B., J.K., R.H., D.H., M.W., E.L., M.B.C., D.G., H.A.Z.), and the University at Albany School of Public Health, State University of New York, Rensselaer (E.S.R., E.L.) - both in New York.
  • Zucker HA; From the New York State Department of Health, Albany (E.S.R., V.D., D.E., U.E.B., J.K., R.H., D.H., M.W., E.L., M.B.C., D.G., H.A.Z.), and the University at Albany School of Public Health, State University of New York, Rensselaer (E.S.R., E.L.) - both in New York.
N Engl J Med ; 386(2): 116-127, 2022 01 13.
Article in En | MEDLINE | ID: mdl-34942067
ABSTRACT

BACKGROUND:

Population-based data from the United States on the effectiveness of the three coronavirus disease 2019 (Covid-19) vaccines currently authorized by the Food and Drug Administration are limited. Whether declines in effectiveness are due to waning immunity, the B.1.617.2 (delta) variant of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), or other causes is unknown.

METHODS:

We used data for 8,690,825 adults in New York State to assess the effectiveness of the BNT162b2, mRNA-1273, and Ad26.COV2.S vaccines against laboratory-confirmed Covid-19 and hospitalization with Covid-19 (i.e., Covid-19 diagnosed at or after admission). We compared cohorts defined according to vaccine product received, age, and month of full vaccination with age-specific unvaccinated cohorts by linking statewide testing, hospital, and vaccine registry databases. We assessed vaccine effectiveness against Covid-19 from May 1 through September 3, 2021, and against hospitalization with Covid-19 from May 1 through August 31, 2021.

RESULTS:

There were 150,865 cases of Covid-19 and 14,477 hospitalizations with Covid-19. During the week of May 1, 2021, when the delta variant made up 1.8% of the circulating variants, the median vaccine effectiveness against Covid-19 was 91.3% (range, 84.1 to 97.0) for BNT162b2, 96.9% (range, 93.7 to 98.0) for mRNA-1273, and 86.6% (range, 77.8 to 89.7) for Ad26.COV2.S. Subsequently, effectiveness declined contemporaneously in all cohorts, from a median of 93.4% (range, 77.8 to 98.0) during the week of May 1 to a nadir of 73.5% (range, 13.8 to 90.0) around July 10, when the prevalence of the delta variant was 85.3%. By the week of August 28, when the prevalence of the delta variant was 99.6%, the effectiveness was 74.2% (range, 63.4 to 86.8). Effectiveness against hospitalization with Covid-19 among adults 18 to 64 years of age remained almost exclusively greater than 86%, with no apparent time trend. Effectiveness declined from May through August among persons 65 years of age or older who had received BNT162b2 (from 94.8 to 88.6%) or mRNA-1273 (from 97.1 to 93.7%). The effectiveness of Ad26.COV2.S was lower than that of the other vaccines, with no trend observed over time (range, 80.0 to 90.6%).

CONCLUSIONS:

The effectiveness of the three vaccines against Covid-19 declined after the delta variant became predominant. The effectiveness against hospitalization remained high, with modest declines limited to BNT162b2 and mRNA-1273 recipients 65 years of age or older.
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Full text: 1 Database: MEDLINE Main subject: COVID-19 / Vaccine Efficacy / BNT162 Vaccine / 2019-nCoV Vaccine mRNA-1273 / Ad26COVS1 / Hospitalization Type of study: Etiology_studies / Incidence_studies / Observational_studies / Prognostic_studies / Risk_factors_studies Limits: Adolescent / Adult / Aged / Humans / Middle aged Country/Region as subject: America do norte Language: En Journal: N Engl J Med Year: 2022 Type: Article
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Full text: 1 Database: MEDLINE Main subject: COVID-19 / Vaccine Efficacy / BNT162 Vaccine / 2019-nCoV Vaccine mRNA-1273 / Ad26COVS1 / Hospitalization Type of study: Etiology_studies / Incidence_studies / Observational_studies / Prognostic_studies / Risk_factors_studies Limits: Adolescent / Adult / Aged / Humans / Middle aged Country/Region as subject: America do norte Language: En Journal: N Engl J Med Year: 2022 Type: Article