Assessment of Effectiveness of 1 Dose of BNT162b2 Vaccine for SARS-CoV-2 Infection 13 to 24 Days After Immunization.
Assessment of Effectiveness of 1 Dose of BNT162b2 Vaccine for SARS-CoV-2 Infection 13 to 24 Days After Immunization.
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DOI:
10.1001/jamanetworkopen.2021.15985
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发表时间:
2021-06-01
影响因子:
13.8
通讯作者:
Muhsen K
中科院分区:
文献类型:
--
作者:
Chodick G;Tene L;Patalon T;Gazit S;Ben Tov A;Cohen D;Muhsen K
Is 1 dose of the BNT162b2 COVID-19 mRNA vaccine associated with protection against infection with SARS-CoV-2 and symptomatic COVID-19 in real-world settings? In this comparative effectiveness study of 503 875 individuals who received 1 dose of the BNT162b2 vaccine, the first dose of the vaccine was associated with an approximately 51% reduction in the risk of SARS-CoV-2 infections at 13 to 24 days after immunization compared with 1 to 12 days after vaccination. The first dose was associated with 54% effectiveness against symptomatic COVID-19. The results of this study agree with vaccine efficacy as reported in the phase III randomized clinical trial after 1 dose. This comparative effectiveness study examines the effectiveness associated with 1 dose of the BNT162b2 COVID-19 vaccine in a real-world setting. The BNT162b2 vaccine showed high efficacy against COVID-19 in a phase III randomized clinical trial. A vaccine effectiveness evaluation in a real-world setting is needed. To assess the short-term effectiveness of the first dose of the BNT162b2-vaccine against SARS-CoV-2 infection 13 to 24 days after immunization in a real-world setting. This comparative effectiveness study used data from a 2.6 million-member state-mandated health care system in Israel. Participants included all individuals aged 16 years and older who received 1 dose of the BNT162b2 vaccine between December 19, 2020, and January 15, 2021. Data were analyzed in March 2021. Receipt of 1 dose of the BNT162b2 vaccine. Information was collected regarding medical history and positive SARS-CoV-2 polymerase chain reaction test and COVID-19 symptoms from 1 day after first vaccine to January 17, 2021. Daily and cumulative infection rates in days 13 to 24 were compared with days 1 to 12 after the first dose using Kaplan-Meier survival analysis and generalized linear models. Data for 503 875 individuals (mean [SD] age, 59.7 [14.7] years; 263 228 [52.4%] women) were analyzed, of whom 351 897 had follow-up data for days 13 to 24. The cumulative incidence of SARS-CoV-2 infection was 2484 individuals (0.57%) during days 1 through 12 and 614 individuals (0.27%) in days 13 through 24. The weighted mean (SE) daily incidence of SARS-CoV-2 infection in days 1 through 12 was 43.41 (12.07) infections per 100 000 population and 21.08 (6.16) infections per 100 000 population in days 13 through 24, a relative risk reduction (RRR) of 51.4% (95% CI, 16.3%-71.8%). The decrease in incidence was evident from day 18 after the first dose. Similar RRRs were calculated in individuals aged 60 years or older (44.5%; 95% CI, 4.1%-67.9%), those younger than 60 years (50.2%; 95% CI, 14.1%-71.2%), women (50.0%; 95% CI, 13.5%-71.0%), and men (52.1%; 95% CI, 17.3%-72.2%). Findings were similar in subpopulations (eg, ultraorthodox Jewish: RRR, 53.5% [95% CI, 19.2%-73.2%]) and patients with various comorbidities (eg, cardiovascular diseases: RRR, 47.2% [95% CI, 7.8%-69.8%]). Vaccine effectiveness against symptomatic COVID-19 was 54.4% (95% CI, 21.4%-73.6%). In this comparative effectiveness study of a single dose of the BNT162b2 vaccine, results were comparable to that of the phase III randomized clinical trial.
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DOI:
10.1056/nejmoa2034577
发表时间:
2020-12-31
期刊:
The New England journal of medicine
影响因子:
--
作者:
Polack FP;Thomas SJ;Kitchin N;Absalon J;Gurtman A;Lockhart S;Perez JL;Pérez Marc G;Moreira ED;Zerbini C;Bailey R;Swanson KA;Roychoudhury S;Koury K;Li P;Kalina WV;Cooper D;Frenck RW Jr;Hammitt LL;Türeci Ö;Nell H;Schaefer A;Ünal S;Tresnan DB;Mather S;Dormitzer PR;Şahin U;Jansen KU;Gruber WC;C4591001 Clinical Trial Group
通讯作者:
C4591001 Clinical Trial Group
影响因子:
5.5
作者:
Jackson, Michael L.;Phillips, C. Hallie;Jackson, Lisa A.
通讯作者:
Jackson, Lisa A.
影响因子:
3.5
作者:
Shalev, Varda;Chodick, Gabriel;Heymann, Anthony D.
通讯作者:
Heymann, Anthony D.
DOI:
10.1016/s0140-6736(21)00085-4
发表时间:
2021-01-30
期刊:
Lancet (London, England)
影响因子:
--
作者:
Cavaleri M;Enzmann H;Straus S;Cooke E
通讯作者:
Cooke E
影响因子:
13.6
作者:
Chodick, G;Heymann, AD;Kookia, E
通讯作者:
Kookia, E