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<?xml version="1.0"?>
<!DOCTYPE PubmedArticleSet PUBLIC "-//NLM//DTD PubMedArticle, 1st January 2024//EN" "https://dtd.nlm.nih.gov/ncbi/pubmed/out/pubmed_240101.dtd">
<PubmedArticleSet>
    <PubmedArticle>
        <MedlineCitation Status="MEDLINE" Owner="NLM" IndexingMethod="Automated">
            <PMID Version="1">36473651</PMID>
            <DateCompleted>
                <Year>2022</Year>
                <Month>12</Month>
                <Day>15</Day>
            </DateCompleted>
            <DateRevised>
                <Year>2024</Year>
                <Month>06</Month>
                <Day>05</Day>
            </DateRevised>
            <Article PubModel="Electronic">
                <Journal>
                    <ISSN IssnType="Electronic">1469-493X</ISSN>
                    <JournalIssue CitedMedium="Internet">
                        <Volume>12</Volume>
                        <Issue>12</Issue>
                        <PubDate>
                            <Year>2022</Year>
                            <Month>Dec</Month>
                            <Day>07</Day>
                        </PubDate>
                    </JournalIssue>
                    <Title>The Cochrane database of systematic reviews</Title>
                    <ISOAbbreviation>Cochrane Database Syst Rev</ISOAbbreviation>
                </Journal>
                <ArticleTitle>Efficacy and safety of COVID-19 vaccines.</ArticleTitle>
                <Pagination>
                    <StartPage>CD015477</StartPage>
                    <MedlinePgn>CD015477</MedlinePgn>
                </Pagination>
                <ELocationID EIdType="pii" ValidYN="Y">CD015477</ELocationID>
                <ELocationID EIdType="doi" ValidYN="Y">10.1002/14651858.CD015477</ELocationID>
                <Abstract>
                    <AbstractText Label="BACKGROUND">Different forms of vaccines have been developed
                        to prevent the SARS-CoV-2 virus and subsequent COVID-19 disease. Several are
                        in widespread use globally.&#xa0; OBJECTIVES: To assess the efficacy and
                        safety of COVID-19 vaccines (as a full primary vaccination series or a
                        booster dose) against SARS-CoV-2.</AbstractText>
                    <AbstractText Label="SEARCH METHODS">We searched the Cochrane COVID-19 Study
                        Register and the COVID-19 L&#xb7;OVE platform (last search date 5 November
                        2021). We also searched the WHO International Clinical Trials Registry
                        Platform, regulatory agency websites, and Retraction Watch.</AbstractText>
                    <AbstractText Label="SELECTION CRITERIA">We included randomized controlled
                        trials (RCTs) comparing COVID-19 vaccines to placebo, no vaccine, other
                        active vaccines, or other vaccine schedules.</AbstractText>
                    <AbstractText Label="DATA COLLECTION AND ANALYSIS">We used standard Cochrane
                        methods. We used GRADE to assess the certainty of evidence for all except
                        immunogenicity outcomes.&#xa0; We synthesized data for each vaccine
                        separately and presented summary effect estimates with 95% confidence
                        intervals (CIs).&#xa0; MAIN RESULTS: We included and analyzed 41 RCTs
                        assessing 12 different vaccines, including homologous and heterologous
                        vaccine schedules and the effect of booster doses. Thirty-two RCTs were
                        multicentre and five were multinational. The sample sizes of RCTs were 60 to
                        44,325 participants. Participants were aged: 18 years or older in 36 RCTs;
                        12 years or older in one RCT; 12 to 17 years in two RCTs; and three to 17
                        years in two RCTs. Twenty-nine RCTs provided results for individuals aged
                        over 60 years, and three RCTs included immunocompromized patients. No trials
                        included pregnant women. Sixteen RCTs had two-month follow-up or less, 20
                        RCTs had two to six months, and five RCTs had greater than six to 12 months
                        or less. Eighteen reports were based on preplanned interim analyses. Overall
                        risk of bias was low for all outcomes in eight RCTs, while 33 had concerns
                        for at least one outcome. We identified 343 registered RCTs with results not
                        yet available.&#xa0; This abstract reports results for the critical outcomes
                        of confirmed symptomatic COVID-19, severe and critical COVID-19, and serious
                        adverse events only for the 10 WHO-approved vaccines. For remaining outcomes
                        and vaccines, see main text. The evidence for mortality was generally sparse
                        and of low or very low certainty for all WHO-approved vaccines, except
                        AD26.COV2.S (Janssen), which probably reduces the risk of all-cause
                        mortality (risk ratio (RR) 0.25, 95% CI 0.09 to 0.67; 1 RCT, 43,783
                        participants; high-certainty evidence). Confirmed symptomatic COVID-19
                        High-certainty evidence found that BNT162b2 (BioNtech/Fosun Pharma/Pfizer),
                        mRNA-1273 (ModernaTx), ChAdOx1 (Oxford/AstraZeneca), Ad26.COV2.S, BBIBP-CorV
                        (Sinopharm-Beijing), and BBV152 (Bharat Biotect) reduce the incidence of
                        symptomatic COVID-19 compared to placebo (vaccine efficacy (VE): BNT162b2:
                        97.84%, 95% CI 44.25% to 99.92%; 2 RCTs, 44,077 participants; mRNA-1273:
                        93.20%, 95% CI 91.06% to 94.83%; 2 RCTs, 31,632 participants; ChAdOx1:
                        70.23%, 95% CI 62.10% to 76.62%; 2 RCTs, 43,390 participants; Ad26.COV2.S:
                        66.90%, 95% CI 59.10% to 73.40%; 1 RCT, 39,058 participants; BBIBP-CorV:
                        78.10%, 95% CI 64.80% to 86.30%; 1 RCT, 25,463 participants; BBV152: 77.80%,
                        95% CI 65.20% to 86.40%; 1 RCT, 16,973 participants). Moderate-certainty
                        evidence found that NVX-CoV2373 (Novavax) probably reduces the incidence of
                        symptomatic COVID-19 compared to placebo (VE 82.91%, 95% CI 50.49% to
                        94.10%; 3 RCTs, 42,175 participants). There is low-certainty evidence for
                        CoronaVac (Sinovac) for this outcome (VE 69.81%, 95% CI 12.27% to 89.61%; 2
                        RCTs, 19,852 participants). Severe or critical COVID-19 High-certainty
                        evidence found that BNT162b2, mRNA-1273, Ad26.COV2.S, and BBV152 result in a
                        large reduction in incidence of severe or critical disease due to COVID-19
                        compared to placebo (VE: BNT162b2: 95.70%, 95% CI 73.90% to 99.90%; 1 RCT,
                        46,077 participants; mRNA-1273: 98.20%, 95% CI 92.80% to 99.60%; 1 RCT,
                        28,451 participants; AD26.COV2.S: 76.30%, 95% CI 57.90% to 87.50%; 1 RCT,
                        39,058 participants; BBV152: 93.40%, 95% CI 57.10% to 99.80%; 1 RCT, 16,976
                        participants). Moderate-certainty evidence found that NVX-CoV2373 probably
                        reduces the incidence of severe or critical COVID-19 (VE 100.00%, 95% CI
                        86.99% to 100.00%; 1 RCT, 25,452 participants). Two trials reported high
                        efficacy of CoronaVac for severe or critical disease with wide CIs, but
                        these results could not be pooled. Serious adverse events (SAEs) mRNA-1273,
                        ChAdOx1 (Oxford-AstraZeneca)/SII-ChAdOx1 (Serum Institute of India),
                        Ad26.COV2.S, and BBV152 probably result in little or no difference in SAEs
                        compared to placebo (RR: mRNA-1273: 0.92, 95% CI 0.78 to 1.08; 2 RCTs,
                        34,072 participants; ChAdOx1/SII-ChAdOx1: 0.88, 95% CI 0.72 to 1.07; 7 RCTs,
                        58,182 participants; Ad26.COV2.S: 0.92, 95% CI 0.69 to 1.22; 1 RCT, 43,783
                        participants); BBV152: 0.65, 95% CI 0.43 to 0.97; 1 RCT, 25,928
                        participants). In each of these, the likely absolute difference in effects
                        was fewer than 5/1000 participants. Evidence for SAEs is uncertain for
                        BNT162b2, CoronaVac, BBIBP-CorV, and NVX-CoV2373 compared to placebo (RR:
                        BNT162b2: 1.30, 95% CI 0.55 to 3.07; 2 RCTs, 46,107 participants; CoronaVac:
                        0.97, 95% CI 0.62 to 1.51; 4 RCTs, 23,139 participants; BBIBP-CorV: 0.76,
                        95% CI 0.54 to 1.06; 1 RCT, 26,924 participants; NVX-CoV2373: 0.92, 95% CI
                        0.74 to 1.14; 4 RCTs, 38,802 participants). For the evaluation of
                        heterologous schedules, booster doses, and efficacy against variants of
                        concern, see main text of review.</AbstractText>
                    <AbstractText Label="AUTHORS' CONCLUSIONS">Compared to placebo, most vaccines
                        reduce, or likely reduce, the proportion of participants with confirmed
                        symptomatic COVID-19, and for some, there is high-certainty evidence that
                        they reduce severe or critical disease. There is probably little or no
                        difference between most vaccines and placebo for serious adverse events.
                        Over 300 registered RCTs are evaluating the efficacy of COVID-19 vaccines,
                        and this review is updated regularly on the COVID-NMA platform
                        (covid-nma.com). Implications for practice Due to the trial exclusions,
                        these results cannot be generalized to pregnant women, individuals with a
                        history of SARS-CoV-2 infection, or immunocompromized people. Most trials
                        had a short follow-up and were conducted before the emergence of variants of
                        concern. Implications for research Future research should evaluate the
                        long-term effect of vaccines, compare different vaccines and vaccine
                        schedules, assess vaccine efficacy and safety in specific populations, and
                        include outcomes such as preventing long COVID-19. Ongoing evaluation of
                        vaccine efficacy and effectiveness against emerging variants of concern is
                        also vital.</AbstractText>
                    <CopyrightInformation>Copyright &#xa9; 2022 The Authors. Cochrane Database of
                        Systematic Reviews published by John Wiley &amp; Sons, Ltd. on behalf of The
                        Cochrane Collaboration.</CopyrightInformation>
                </Abstract>
                <AuthorList CompleteYN="Y">
                    <Author ValidYN="Y">
                        <LastName>Gra&#xf1;a</LastName>
                        <ForeName>Carolina</ForeName>
                        <Initials>C</Initials>
                        <AffiliationInfo>
                            <Affiliation>Cochrane France, Paris, France.</Affiliation>
                        </AffiliationInfo>
                        <AffiliationInfo>
                            <Affiliation>Centre of Research in Epidemiology and Statistics (CRESS),
                                INSERM, INRAE, Universit&#xe9; de Paris, Paris, France.</Affiliation>
                        </AffiliationInfo>
                    </Author>
                    <Author ValidYN="Y">
                        <LastName>Ghosn</LastName>
                        <ForeName>Lina</ForeName>
                        <Initials>L</Initials>
                        <AffiliationInfo>
                            <Affiliation>Cochrane France, Paris, France.</Affiliation>
                        </AffiliationInfo>
                        <AffiliationInfo>
                            <Affiliation>Centre of Research in Epidemiology and Statistics (CRESS),
                                INSERM, INRAE, Universit&#xe9; de Paris, Paris, France.</Affiliation>
                        </AffiliationInfo>
                    </Author>
                    <Author ValidYN="Y">
                        <LastName>Evrenoglou</LastName>
                        <ForeName>Theodoros</ForeName>
                        <Initials>T</Initials>
                        <AffiliationInfo>
                            <Affiliation>Centre of Research in Epidemiology and Statistics (CRESS),
                                INSERM, INRAE, Universit&#xe9; de Paris, Paris, France.</Affiliation>
                        </AffiliationInfo>
                    </Author>
                    <Author ValidYN="Y">
                        <LastName>Jarde</LastName>
                        <ForeName>Alexander</ForeName>
                        <Initials>A</Initials>
                        <AffiliationInfo>
                            <Affiliation>Cochrane France, Paris, France.</Affiliation>
                        </AffiliationInfo>
                        <AffiliationInfo>
                            <Affiliation>Centre of Research in Epidemiology and Statistics (CRESS),
                                INSERM, INRAE, Universit&#xe9; de Paris, Paris, France.</Affiliation>
                        </AffiliationInfo>
                    </Author>
                    <Author ValidYN="Y">
                        <LastName>Minozzi</LastName>
                        <ForeName>Silvia</ForeName>
                        <Initials>S</Initials>
                        <AffiliationInfo>
                            <Affiliation>Cochrane Review Group on Drugs and Alcohol, Rome, Italy.</Affiliation>
                        </AffiliationInfo>
                    </Author>
                    <Author ValidYN="Y">
                        <LastName>Bergman</LastName>
                        <ForeName>Hanna</ForeName>
                        <Initials>H</Initials>
                        <AffiliationInfo>
                            <Affiliation>Cochrane Response, Cochrane, London, UK.</Affiliation>
                        </AffiliationInfo>
                    </Author>
                    <Author ValidYN="Y">
                        <LastName>Buckley</LastName>
                        <ForeName>Brian S</ForeName>
                        <Initials>BS</Initials>
                        <AffiliationInfo>
                            <Affiliation>Cochrane Response, Cochrane, London, UK.</Affiliation>
                        </AffiliationInfo>
                    </Author>
                    <Author ValidYN="Y">
                        <LastName>Probyn</LastName>
                        <ForeName>Katrin</ForeName>
                        <Initials>K</Initials>
                        <AffiliationInfo>
                            <Affiliation>Cochrane Response, Cochrane, London, UK.</Affiliation>
                        </AffiliationInfo>
                    </Author>
                    <Author ValidYN="Y">
                        <LastName>Villanueva</LastName>
                        <ForeName>Gemma</ForeName>
                        <Initials>G</Initials>
                        <AffiliationInfo>
                            <Affiliation>Cochrane Response, Cochrane, London, UK.</Affiliation>
                        </AffiliationInfo>
                    </Author>
                    <Author ValidYN="Y">
                        <LastName>Henschke</LastName>
                        <ForeName>Nicholas</ForeName>
                        <Initials>N</Initials>
                        <AffiliationInfo>
                            <Affiliation>Cochrane Response, Cochrane, London, UK.</Affiliation>
                        </AffiliationInfo>
                    </Author>
                    <Author ValidYN="Y">
                        <LastName>Bonnet</LastName>
                        <ForeName>Hillary</ForeName>
                        <Initials>H</Initials>
                        <AffiliationInfo>
                            <Affiliation>Cochrane France, Paris, France.</Affiliation>
                        </AffiliationInfo>
                        <AffiliationInfo>
                            <Affiliation>Centre of Research in Epidemiology and Statistics (CRESS),
                                INSERM, INRAE, Universit&#xe9; de Paris, Paris, France.</Affiliation>
                        </AffiliationInfo>
                    </Author>
                    <Author ValidYN="Y">
                        <LastName>Assi</LastName>
                        <ForeName>Rouba</ForeName>
                        <Initials>R</Initials>
                        <AffiliationInfo>
                            <Affiliation>Cochrane France, Paris, France.</Affiliation>
                        </AffiliationInfo>
                        <AffiliationInfo>
                            <Affiliation>Centre of Research in Epidemiology and Statistics (CRESS),
                                INSERM, INRAE, Universit&#xe9; de Paris, Paris, France.</Affiliation>
                        </AffiliationInfo>
                    </Author>
                    <Author ValidYN="Y">
                        <LastName>Menon</LastName>
                        <ForeName>Sonia</ForeName>
                        <Initials>S</Initials>
                        <AffiliationInfo>
                            <Affiliation>Cochrane France, Paris, France.</Affiliation>
                        </AffiliationInfo>
                    </Author>
                    <Author ValidYN="Y">
                        <LastName>Marti</LastName>
                        <ForeName>Melanie</ForeName>
                        <Initials>M</Initials>
                        <AffiliationInfo>
                            <Affiliation>Department of Immunization, Vaccines and Biologicals, World
                                Health Organization, Geneva, Switzerland.</Affiliation>
                        </AffiliationInfo>
                    </Author>
                    <Author ValidYN="Y">
                        <LastName>Devane</LastName>
                        <ForeName>Declan</ForeName>
                        <Initials>D</Initials>
                        <AffiliationInfo>
                            <Affiliation>Evidence Synthesis Ireland, Cochrane Ireland and HRB-Trials
                                Methodology Research Network, National University of Ireland,
                                Galway, Ireland.</Affiliation>
                        </AffiliationInfo>
                    </Author>
                    <Author ValidYN="Y">
                        <LastName>Mallon</LastName>
                        <ForeName>Patrick</ForeName>
                        <Initials>P</Initials>
                        <AffiliationInfo>
                            <Affiliation>UCD Centre for Experimental Pathogen Host Research and UCD
                                School of Medicine, University College Dublin, Dublin, Ireland.</Affiliation>
                        </AffiliationInfo>
                    </Author>
                    <Author ValidYN="Y">
                        <LastName>Lelievre</LastName>
                        <ForeName>Jean-Daniel</ForeName>
                        <Initials>JD</Initials>
                        <AffiliationInfo>
                            <Affiliation>Department of Clinical Immunology and Infectious Diseases,
                                Henri Mondor Hospital, Vaccine Research Institute, Universit&#xe9;
                                Paris Est Cr&#xe9;teil, Paris, France.</Affiliation>
                        </AffiliationInfo>
                    </Author>
                    <Author ValidYN="Y">
                        <LastName>Askie</LastName>
                        <ForeName>Lisa M</ForeName>
                        <Initials>LM</Initials>
                        <AffiliationInfo>
                            <Affiliation>Quality Assurance Norms and Standards Department, World
                                Health Organization, Geneva, Switzerland.</Affiliation>
                        </AffiliationInfo>
                    </Author>
                    <Author ValidYN="Y">
                        <LastName>Kredo</LastName>
                        <ForeName>Tamara</ForeName>
                        <Initials>T</Initials>
                        <AffiliationInfo>
                            <Affiliation>Cochrane South Africa, South African Medical Research
                                Council, Cape Town, South Africa.</Affiliation>
                        </AffiliationInfo>
                    </Author>
                    <Author ValidYN="Y">
                        <LastName>Ferrand</LastName>
                        <ForeName>Gabriel</ForeName>
                        <Initials>G</Initials>
                        <AffiliationInfo>
                            <Affiliation>Cochrane France, Paris, France.</Affiliation>
                        </AffiliationInfo>
                    </Author>
                    <Author ValidYN="Y">
                        <LastName>Davidson</LastName>
                        <ForeName>Mauricia</ForeName>
                        <Initials>M</Initials>
                        <AffiliationInfo>
                            <Affiliation>Cochrane France, Paris, France.</Affiliation>
                        </AffiliationInfo>
                        <AffiliationInfo>
                            <Affiliation>Centre of Research in Epidemiology and Statistics (CRESS),
                                INSERM, INRAE, Universit&#xe9; de Paris, Paris, France.</Affiliation>
                        </AffiliationInfo>
                    </Author>
                    <Author ValidYN="Y">
                        <LastName>Riveros</LastName>
                        <ForeName>Carolina</ForeName>
                        <Initials>C</Initials>
                        <AffiliationInfo>
                            <Affiliation>Cochrane France, Paris, France.</Affiliation>
                        </AffiliationInfo>
                        <AffiliationInfo>
                            <Affiliation>Centre of Research in Epidemiology and Statistics (CRESS),
                                INSERM, INRAE, Universit&#xe9; de Paris, Paris, France.</Affiliation>
                        </AffiliationInfo>
                    </Author>
                    <Author ValidYN="Y">
                        <LastName>Tovey</LastName>
                        <ForeName>David</ForeName>
                        <Initials>D</Initials>
                        <AffiliationInfo>
                            <Affiliation>Cochrane France, Paris, France.</Affiliation>
                        </AffiliationInfo>
                    </Author>
                    <Author ValidYN="Y">
                        <LastName>Meerpohl</LastName>
                        <ForeName>Joerg J</ForeName>
                        <Initials>JJ</Initials>
                        <AffiliationInfo>
                            <Affiliation>Institute for Evidence in Medicine, Medical Center &amp;
                                Faculty of Medicine, University of Freiburg, Freiburg, Germany.</Affiliation>
                        </AffiliationInfo>
                        <AffiliationInfo>
                            <Affiliation>Cochrane Germany, Cochrane Germany Foundation, Freiburg,
                                Germany.</Affiliation>
                        </AffiliationInfo>
                    </Author>
                    <Author ValidYN="Y">
                        <LastName>Grasselli</LastName>
                        <ForeName>Giacomo</ForeName>
                        <Initials>G</Initials>
                        <AffiliationInfo>
                            <Affiliation>Department of Anesthesia, Intensive Care and Emergency,
                                Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico,
                                Department of Pathophysiology and Transplantation, University of
                                Milan, Milan, Italy.</Affiliation>
                        </AffiliationInfo>
                    </Author>
                    <Author ValidYN="Y">
                        <LastName>Rada</LastName>
                        <ForeName>Gabriel</ForeName>
                        <Initials>G</Initials>
                        <AffiliationInfo>
                            <Affiliation>Epistemonikos Foundation, Santiago, Chile.</Affiliation>
                        </AffiliationInfo>
                        <AffiliationInfo>
                            <Affiliation>UC Evidence Center, Cochrane Chile Associated Center,
                                Pontificia Universidad Cat&#xf3;lica de Chile, Santiago, Chile.</Affiliation>
                        </AffiliationInfo>
                    </Author>
                    <Author ValidYN="Y">
                        <LastName>Hr&#xf3;bjartsson</LastName>
                        <ForeName>Asbj&#xf8;rn</ForeName>
                        <Initials>A</Initials>
                        <AffiliationInfo>
                            <Affiliation>Centre for Evidence Based Medicine Odense (CEBMO) and
                                Cochrane Denmark, University of Southern Denmark, Odense, Denmark.</Affiliation>
                        </AffiliationInfo>
                        <AffiliationInfo>
                            <Affiliation>Open Patient data Explorative Network (OPEN), Odense
                                University Hospital, Odense, Denmark.</Affiliation>
                        </AffiliationInfo>
                    </Author>
                    <Author ValidYN="Y">
                        <LastName>Ravaud</LastName>
                        <ForeName>Philippe</ForeName>
                        <Initials>P</Initials>
                        <AffiliationInfo>
                            <Affiliation>Cochrane France, Paris, France.</Affiliation>
                        </AffiliationInfo>
                        <AffiliationInfo>
                            <Affiliation>Centre of Research in Epidemiology and Statistics (CRESS),
                                INSERM, INRAE, Universit&#xe9; de Paris, Paris, France.</Affiliation>
                        </AffiliationInfo>
                    </Author>
                    <Author ValidYN="Y">
                        <LastName>Chaimani</LastName>
                        <ForeName>Anna</ForeName>
                        <Initials>A</Initials>
                        <AffiliationInfo>
                            <Affiliation>Cochrane France, Paris, France.</Affiliation>
                        </AffiliationInfo>
                        <AffiliationInfo>
                            <Affiliation>Centre of Research in Epidemiology and Statistics (CRESS),
                                INSERM, INRAE, Universit&#xe9; de Paris, Paris, France.</Affiliation>
                        </AffiliationInfo>
                    </Author>
                    <Author ValidYN="Y">
                        <LastName>Boutron</LastName>
                        <ForeName>Isabelle</ForeName>
                        <Initials>I</Initials>
                        <AffiliationInfo>
                            <Affiliation>Cochrane France, Paris, France.</Affiliation>
                        </AffiliationInfo>
                        <AffiliationInfo>
                            <Affiliation>Centre of Research in Epidemiology and Statistics (CRESS),
                                INSERM, INRAE, Universit&#xe9; de Paris, Paris, France.</Affiliation>
                        </AffiliationInfo>
                    </Author>
                </AuthorList>
                <Language>eng</Language>
                <GrantList CompleteYN="Y">
                    <Grant>
                        <GrantID>001</GrantID>
                        <Acronym>WHO_</Acronym>
                        <Agency>World Health Organization</Agency>
                        <Country>International</Country>
                    </Grant>
                </GrantList>
                <PublicationTypeList>
                    <PublicationType UI="D016428">Journal Article</PublicationType>
                    <PublicationType UI="D016454">Review</PublicationType>
                    <PublicationType UI="D000078182">Systematic Review</PublicationType>
                </PublicationTypeList>
                <ArticleDate DateType="Electronic">
                    <Year>2022</Year>
                    <Month>12</Month>
                    <Day>07</Day>
                </ArticleDate>
            </Article>
            <MedlineJournalInfo>
                <Country>England</Country>
                <MedlineTA>Cochrane Database Syst Rev</MedlineTA>
                <NlmUniqueID>100909747</NlmUniqueID>
                <ISSNLinking>1361-6137</ISSNLinking>
            </MedlineJournalInfo>
            <ChemicalList>
                <Chemical>
                    <RegistryNumber>0</RegistryNumber>
                    <NameOfSubstance UI="C000722216">sinovac COVID-19 vaccine</NameOfSubstance>
                </Chemical>
                <Chemical>
                    <RegistryNumber>0</RegistryNumber>
                    <NameOfSubstance UI="C000722768">BIBP COVID-19 vaccine</NameOfSubstance>
                </Chemical>
                <Chemical>
                    <RegistryNumber>76JZE5DSN6</RegistryNumber>
                    <NameOfSubstance UI="C000722386">BBV152 COVID-19 vaccine</NameOfSubstance>
                </Chemical>
                <Chemical>
                    <RegistryNumber>EPK39PL4R4</RegistryNumber>
                    <NameOfSubstance UI="D000090983">2019-nCoV Vaccine mRNA-1273</NameOfSubstance>
                </Chemical>
            </ChemicalList>
            <CitationSubset>IM</CitationSubset>
            <MeshHeadingList>
                <MeshHeading>
                    <DescriptorName UI="D006801" MajorTopicYN="N">Humans</DescriptorName>
                </MeshHeading>
                <MeshHeading>
                    <DescriptorName UI="D008875" MajorTopicYN="N">Middle Aged</DescriptorName>
                </MeshHeading>
                <MeshHeading>
                    <DescriptorName UI="D000368" MajorTopicYN="N">Aged</DescriptorName>
                </MeshHeading>
                <MeshHeading>
                    <DescriptorName UI="D000293" MajorTopicYN="N">Adolescent</DescriptorName>
                </MeshHeading>
                <MeshHeading>
                    <DescriptorName UI="D000090983" MajorTopicYN="Y">2019-nCoV Vaccine mRNA-1273</DescriptorName>
                </MeshHeading>
                <MeshHeading>
                    <DescriptorName UI="D000086382" MajorTopicYN="Y">COVID-19</DescriptorName>
                    <QualifierName UI="Q000517" MajorTopicYN="N">prevention &amp; control</QualifierName>
                </MeshHeading>
                <MeshHeading>
                    <DescriptorName UI="D000086402" MajorTopicYN="N">SARS-CoV-2</DescriptorName>
                </MeshHeading>
            </MeshHeadingList>
            <CoiStatement>Carolina Gra&#xf1;a: none known. Lina Ghosn: none known. Theodoros
                Evrenoglou: none known. Alexander Jarde: none known. Silvia Minozzi: no relevant
                interests; Joint Co&#x2010;ordinating Editor and Method editor of the Drugs and
                Alcohol Group. Hanna Bergman: Cochrane Response &#x2013; consultant; WHO &#x2013;
                grant/contract (Cochrane Response was commissioned by the WHO to perform review
                tasks that contribute to this publication).&#xa0;. Brian Buckley: none known.&#xa0;.
                Katrin Probyn: Cochrane Response &#x2013; consultant; WHO &#x2013; consultant
                (Cochrane Response was commissioned to perform review tasks that contribute to this
                publication).&#xa0;. Gemma Villanueva: Cochrane Response &#x2013; employment
                (Cochrane Response has been commissioned by WHO to perform parts of this systematic
                review).&#xa0;. Nicholas Henschke: Cochrane Response &#x2013; consultant; WHO
                &#x2013; consultant (Cochrane Response was commissioned by the WHO to perform review
                tasks that contributed to this publication).&#xa0;. Hillary Bonnet: none known.
                Rouba Assi: none known. Sonia Menon: P95 &#x2013; consultant. Melanie Marti: no
                relevant interests; Medical Officer at WHO. Declan Devane: Health Research Board
                (HRB) &#x2013; grant/contract; registered nurse and registered midwife but no longer
                in clinical practice; Editor, Cochrane Pregnancy and Childbirth Group. Patrick
                Mallon: AstraZeneca &#x2013; Advisory Board; spoken of vaccine effectiveness to
                media (print, online, and live); works as a consultant in a hospital that provides
                vaccinations; employed by St Vincent's University Hospital. Jean&#x2010;Daniel
                Lelievre: no relevant interests; published numerous interviews in the national press
                on the subject of COVID vaccination; Head of the Department of Infectious Diseases
                and Clinical Immunology CHU Henri Mondor APHP, Cr&#xe9;teil; WHO (IVRI&#x2010;AC):
                expert Vaccelarate (European project on COVID19 Vaccine): head of WP; involved with
                COVICOMPARE P et M Studies (APHP, INSERM) (public fundings).&#xa0;. Lisa Askie: no
                relevant interests; Co&#x2010;convenor, Cochrane Prospective Meta&#x2010;analysis
                Methods Group. Tamara Kredo: no relevant interests; Medical Officer in an Infectious
                Diseases Clinic at Tygerberg Hospital, Stellenbosch University. Gabriel Ferrand:
                none known. Mauricia Davidson: none known. Carolina Riveros: no relevant interests;
                works as an epidemiologist. David Tovey: no relevant interests; Emeritus Editor in
                Chief, Feedback Editors for 2 Cochrane review groups. Joerg J Meerpohl: no relevant
                interests; member of the German Standing Vaccination Committee (STIKO). Giacomo
                Grasselli: Pfizer &#x2013; speaking engagement. Gabriel Rada: none known.
                Asbj&#xf8;rn Hr&#xf3;bjartsson: no relevant interests; Cochrane Methodology Review
                Group Editor. Philippe Ravaud: no relevant interests; involved with Mariette
                CORIMUNO&#x2010;19 Collaborative 2021, the Ministry of Health, Programme Hospitalier
                de Recherche Clinique, Foundation for Medical Research, and AP&#x2010;HP Foundation.
                Anna Chaimani: none known. Isabelle Boutron: no relevant interests; member of
                Cochrane Editorial Board.</CoiStatement>
        </MedlineCitation>
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                    <Year>2022</Year>
                    <Month>12</Month>
                    <Day>6</Day>
                    <Hour>19</Hour>
                    <Minute>26</Minute>
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            <ArticleIdList>
                <ArticleId IdType="pubmed">36473651</ArticleId>
                <ArticleId IdType="pmc">PMC9726273</ArticleId>
                <ArticleId IdType="doi">10.1002/14651858.CD015477</ArticleId>
            </ArticleIdList>
            <ReferenceList>
                <Title>References to studies included in this review</Title>
                <ReferenceList>
                    <Title>Ali 2021 {published data only}</Title>
                    <Reference>
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                            <ArticleId IdType="pubmed">34379915</ArticleId>
                        </ArticleIdList>
                    </Reference>
                </ReferenceList>
                <ReferenceList>
                    <Title>Al Kaabi 2021 {published data only}</Title>
                    <Reference>
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                        </ArticleIdList>
                    </Reference>
                </ReferenceList>
                <ReferenceList>
                    <Title>Asano 2022 {published data only}</Title>
                    <Reference>
                        <Citation>Asano M, Okada H, Itoh Y, Hirata H, Ishikawa K, Yoshida E, et al.
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                    </Reference>
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                <ReferenceList>
                    <Title>Bonelli 2021 {published data only}</Title>
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                            <ArticleId IdType="pubmed">35027397</ArticleId>
                        </ArticleIdList>
                    </Reference>
                </ReferenceList>
                <ReferenceList>
                    <Title>Bueno 2021 {published data only}</Title>
                    <Reference>
                        <Citation>Bueno SM, Abarca K, Gonz&#xe1;lez PA, G&#xe1;lvez NM, Soto JA,
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                    </Reference>
                </ReferenceList>
                <ReferenceList>
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                    </Reference>
                </ReferenceList>
                <ReferenceList>
                    <Title>Dunkle 2021 {published data only}</Title>
                    <Reference>
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