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  <front>
    <journal-meta>
      <journal-id journal-id-type="publisher-id">JPH</journal-id>
      <journal-id journal-id-type="nlm-ta">JMIR Public Health Surveill</journal-id>
      <journal-title>JMIR Public Health and Surveillance</journal-title>
      <issn pub-type="epub">2369-2960</issn>
      <publisher>
        <publisher-name>JMIR Publications</publisher-name>
        <publisher-loc>Toronto, Canada</publisher-loc>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id pub-id-type="publisher-id">v10i1e57203</article-id>
      <article-id pub-id-type="pmid">38364221</article-id>
      <article-id pub-id-type="doi">10.2196/57203</article-id>
      <article-categories>
        <subj-group subj-group-type="heading">
          <subject>Corrigenda and Addenda</subject>
        </subj-group>
        <subj-group subj-group-type="article-type">
          <subject>Corrigenda and Addenda</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title>Correction: Comparison of Four Active SARS-CoV-2 Surveillance Strategies in Representative Population Sample Points: Two-Factor Factorial Randomized Controlled Trial</article-title>
      </title-group>
      <contrib-group>
        <contrib id="contrib1" contrib-type="author" corresp="yes">
          <name name-style="western">
            <surname>Deckert</surname>
            <given-names>Andreas</given-names>
          </name>
          <degrees>PhD</degrees>
          <xref rid="aff1" ref-type="aff">1</xref>
          <address>
            <institution>Heidelberg Institute of Global Health</institution>
            <addr-line>INF 324</addr-line>
            <addr-line>Heidelberg, 69120</addr-line>
            <country>Germany</country>
            <phone>49 6221 4537260</phone>
            <email>a.deckert@uni-heidelberg.de</email>
          </address>
          <ext-link ext-link-type="orcid">https://orcid.org/0000-0003-0526-6249</ext-link>
        </contrib>
        <contrib id="contrib2" contrib-type="author">
          <name name-style="western">
            <surname>Anders</surname>
            <given-names>Simon</given-names>
          </name>
          <degrees>Prof Dr</degrees>
          <xref rid="aff2" ref-type="aff">2</xref>
          <ext-link ext-link-type="orcid">https://orcid.org/0000-0003-4868-1805</ext-link>
        </contrib>
        <contrib id="contrib3" contrib-type="author">
          <name name-style="western">
            <surname>Morales</surname>
            <given-names>Ivonne</given-names>
          </name>
          <degrees>PhD</degrees>
          <xref rid="aff3" ref-type="aff">3</xref>
          <ext-link ext-link-type="orcid">https://orcid.org/0000-0001-6803-9284</ext-link>
        </contrib>
        <contrib id="contrib4" contrib-type="author">
          <name name-style="western">
            <surname>De Allegri</surname>
            <given-names>Manuela</given-names>
          </name>
          <degrees>Prof Dr</degrees>
          <xref rid="aff1" ref-type="aff">1</xref>
          <ext-link ext-link-type="orcid">https://orcid.org/0000-0002-8677-1337</ext-link>
        </contrib>
        <contrib id="contrib5" contrib-type="author">
          <name name-style="western">
            <surname>Nguyen</surname>
            <given-names>Hoa Thi</given-names>
          </name>
          <degrees>PhD</degrees>
          <xref rid="aff1" ref-type="aff">1</xref>
          <ext-link ext-link-type="orcid">https://orcid.org/0000-0001-9626-2934</ext-link>
        </contrib>
        <contrib id="contrib6" contrib-type="author">
          <name name-style="western">
            <surname>Souares</surname>
            <given-names>Aurélia</given-names>
          </name>
          <degrees>PhD</degrees>
          <xref rid="aff1" ref-type="aff">1</xref>
          <ext-link ext-link-type="orcid">https://orcid.org/0000-0002-3984-5866</ext-link>
        </contrib>
        <contrib id="contrib7" contrib-type="author">
          <name name-style="western">
            <surname>McMahon</surname>
            <given-names>Shannon</given-names>
          </name>
          <degrees>PhD</degrees>
          <xref rid="aff1" ref-type="aff">1</xref>
          <ext-link ext-link-type="orcid">https://orcid.org/0000-0002-8634-9283</ext-link>
        </contrib>
        <contrib id="contrib8" contrib-type="author">
          <name name-style="western">
            <surname>Meurer</surname>
            <given-names>Matthias</given-names>
          </name>
          <degrees>Dipl Ing</degrees>
          <xref rid="aff2" ref-type="aff">2</xref>
          <ext-link ext-link-type="orcid">https://orcid.org/0000-0003-4651-128X</ext-link>
        </contrib>
        <contrib id="contrib9" contrib-type="author">
          <name name-style="western">
            <surname>Burk</surname>
            <given-names>Robin</given-names>
          </name>
          <degrees>PhD</degrees>
          <xref rid="aff2" ref-type="aff">2</xref>
          <ext-link ext-link-type="orcid">https://orcid.org/0000-0003-4651-6486</ext-link>
        </contrib>
        <contrib id="contrib10" contrib-type="author">
          <name name-style="western">
            <surname>Lou</surname>
            <given-names>Dan</given-names>
          </name>
          <degrees>PhD</degrees>
          <xref rid="aff2" ref-type="aff">2</xref>
          <ext-link ext-link-type="orcid">https://orcid.org/0009-0008-6154-1341</ext-link>
        </contrib>
        <contrib id="contrib11" contrib-type="author">
          <name name-style="western">
            <surname>Brugnara</surname>
            <given-names>Lucia</given-names>
          </name>
          <degrees>MSc</degrees>
          <xref rid="aff4" ref-type="aff">4</xref>
          <ext-link ext-link-type="orcid">https://orcid.org/0000-0001-5708-7301</ext-link>
        </contrib>
        <contrib id="contrib12" contrib-type="author">
          <name name-style="western">
            <surname>Sand</surname>
            <given-names>Matthias</given-names>
          </name>
          <degrees>PhD</degrees>
          <xref rid="aff5" ref-type="aff">5</xref>
          <ext-link ext-link-type="orcid">https://orcid.org/0009-0009-0092-4522</ext-link>
        </contrib>
        <contrib id="contrib13" contrib-type="author">
          <name name-style="western">
            <surname>Koeppel</surname>
            <given-names>Lisa</given-names>
          </name>
          <degrees>PhD</degrees>
          <xref rid="aff3" ref-type="aff">3</xref>
          <ext-link ext-link-type="orcid">https://orcid.org/0000-0003-4445-7881</ext-link>
        </contrib>
        <contrib id="contrib14" contrib-type="author">
          <name name-style="western">
            <surname>Maier-Hein</surname>
            <given-names>Lena</given-names>
          </name>
          <degrees>Prof Dr</degrees>
          <xref rid="aff6" ref-type="aff">6</xref>
          <ext-link ext-link-type="orcid">https://orcid.org/0000-0003-4910-9368</ext-link>
        </contrib>
        <contrib id="contrib15" contrib-type="author">
          <name name-style="western">
            <surname>Ross</surname>
            <given-names>Tobias</given-names>
          </name>
          <xref rid="aff6" ref-type="aff">6</xref>
          <ext-link ext-link-type="orcid">https://orcid.org/0000-0002-7094-4926</ext-link>
        </contrib>
        <contrib id="contrib16" contrib-type="author">
          <name name-style="western">
            <surname>Adler</surname>
            <given-names>Tim J</given-names>
          </name>
          <degrees>PhD</degrees>
          <xref rid="aff6" ref-type="aff">6</xref>
          <ext-link ext-link-type="orcid">https://orcid.org/0000-0002-3424-6629</ext-link>
        </contrib>
        <contrib id="contrib17" contrib-type="author">
          <name name-style="western">
            <surname>Brenner</surname>
            <given-names>Stephan</given-names>
          </name>
          <degrees>PhD</degrees>
          <xref rid="aff1" ref-type="aff">1</xref>
          <ext-link ext-link-type="orcid">https://orcid.org/0000-0001-5397-7008</ext-link>
        </contrib>
        <contrib id="contrib18" contrib-type="author">
          <name name-style="western">
            <surname>Dyer</surname>
            <given-names>Christopher</given-names>
          </name>
          <degrees>PhD</degrees>
          <xref rid="aff7" ref-type="aff">7</xref>
          <ext-link ext-link-type="orcid">https://orcid.org/0000-0003-1651-5511</ext-link>
        </contrib>
        <contrib id="contrib19" contrib-type="author">
          <name name-style="western">
            <surname>Herbst</surname>
            <given-names>Konrad</given-names>
          </name>
          <degrees>PhD</degrees>
          <xref rid="aff2" ref-type="aff">2</xref>
          <ext-link ext-link-type="orcid">https://orcid.org/0000-0003-1296-1522</ext-link>
        </contrib>
        <contrib id="contrib20" contrib-type="author">
          <name name-style="western">
            <surname>Ovchinnikova</surname>
            <given-names>Svetlana</given-names>
          </name>
          <degrees>PhD</degrees>
          <xref rid="aff2" ref-type="aff">2</xref>
          <ext-link ext-link-type="orcid">https://orcid.org/0000-0001-9157-2634</ext-link>
        </contrib>
        <contrib id="contrib21" contrib-type="author">
          <name name-style="western">
            <surname>Marx</surname>
            <given-names>Michael</given-names>
          </name>
          <degrees>Prof Dr</degrees>
          <xref rid="aff4" ref-type="aff">4</xref>
          <ext-link ext-link-type="orcid">https://orcid.org/0000-0002-2342-7002</ext-link>
        </contrib>
        <contrib id="contrib22" contrib-type="author">
          <name name-style="western">
            <surname>Schnitzler</surname>
            <given-names>Paul</given-names>
          </name>
          <degrees>Prof Dr</degrees>
          <xref rid="aff8" ref-type="aff">8</xref>
          <ext-link ext-link-type="orcid">https://orcid.org/0000-0001-5503-3801</ext-link>
        </contrib>
        <contrib id="contrib23" contrib-type="author">
          <name name-style="western">
            <surname>Knop</surname>
            <given-names>Michael</given-names>
          </name>
          <degrees>Prof Dr</degrees>
          <xref rid="aff2" ref-type="aff">2</xref>
          <ext-link ext-link-type="orcid">https://orcid.org/0000-0003-2566-923X</ext-link>
        </contrib>
        <contrib id="contrib24" contrib-type="author">
          <name name-style="western">
            <surname>Bärnighausen</surname>
            <given-names>Till</given-names>
          </name>
          <degrees>Prof Dr</degrees>
          <xref rid="aff1" ref-type="aff">1</xref>
          <ext-link ext-link-type="orcid">https://orcid.org/0000-0002-4182-4212</ext-link>
        </contrib>
        <contrib id="contrib25" contrib-type="author">
          <name name-style="western">
            <surname>Denkinger</surname>
            <given-names>Claudia M</given-names>
          </name>
          <degrees>PD Dr</degrees>
          <xref rid="aff3" ref-type="aff">3</xref>
          <ext-link ext-link-type="orcid">https://orcid.org/0000-0002-7216-7067</ext-link>
        </contrib>
      </contrib-group>
      <aff id="aff1">
        <label>1</label>
        <institution>Heidelberg Institute of Global Health</institution>
        <addr-line>Heidelberg</addr-line>
        <country>Germany</country>
      </aff>
      <aff id="aff2">
        <label>2</label>
        <institution>Center for Molecular Biology Heidelberg</institution>
        <addr-line>Heidelberg</addr-line>
        <country>Germany</country>
      </aff>
      <aff id="aff3">
        <label>3</label>
        <institution>Division of Infectious Disease and Tropical Medicine, Heidelberg University Hospital</institution>
        <addr-line>Heidelberg</addr-line>
        <country>Germany</country>
      </aff>
      <aff id="aff4">
        <label>4</label>
        <institution>evaplan GmbH at the University Hospital</institution>
        <addr-line>Heidelberg</addr-line>
        <country>Germany</country>
      </aff>
      <aff id="aff5">
        <label>5</label>
        <institution>GESIS Leibniz-Institute for the Social Sciences</institution>
        <addr-line>Mannheim</addr-line>
        <country>Germany</country>
      </aff>
      <aff id="aff6">
        <label>6</label>
        <institution>Division of Computer Assisted Medical Interventions, German Cancer Research Centre</institution>
        <addr-line>Heidelberg</addr-line>
        <country>Germany</country>
      </aff>
      <aff id="aff7">
        <label>7</label>
        <institution>Gesundheitsamt des Rhein-Neckar-Kreises</institution>
        <addr-line>Heidelberg</addr-line>
        <country>Germany</country>
      </aff>
      <aff id="aff8">
        <label>8</label>
        <institution>Center of Infectious Diseases, Virology, Heidelberg University Hospital</institution>
        <addr-line>Heidelberg</addr-line>
        <country>Germany</country>
      </aff>
      <author-notes>
        <corresp>Corresponding Author: Andreas Deckert 
        <email>a.deckert@uni-heidelberg.de</email></corresp>
      </author-notes>
      <pub-date pub-type="collection">
        <year>2024</year>
      </pub-date>
      <pub-date pub-type="epub">
        <day>16</day>
        <month>2</month>
        <year>2024</year>
      </pub-date>
      <volume>10</volume>
      <elocation-id>e57203</elocation-id>
      <history>
        <date date-type="received">
          <day>7</day>
          <month>2</month>
          <year>2024</year>
        </date>
        <date date-type="accepted">
          <day>7</day>
          <month>2</month>
          <year>2024</year>
        </date>
      </history>
      <copyright-statement>©Andreas Deckert, Simon Anders, Ivonne Morales, Manuela De Allegri, Hoa Thi Nguyen, Aurélia Souares, Shannon McMahon, Matthias Meurer, Robin Burk, Dan Lou, Lucia Brugnara, Matthias Sand, Lisa Koeppel, Lena Maier-Hein, Tobias Ross, Tim J Adler, Stephan Brenner, Christopher Dyer, Konrad Herbst, Svetlana Ovchinnikova, Michael Marx, Paul Schnitzler, Michael Knop, Till Bärnighausen, Claudia M Denkinger. Originally published in JMIR Public Health and Surveillance (https://publichealth.jmir.org), 16.02.2024.</copyright-statement>
      <copyright-year>2024</copyright-year>
      <license license-type="open-access" xlink:href="https://creativecommons.org/licenses/by/4.0/">
        <p>This is an open-access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in JMIR Public Health and Surveillance, is properly cited. The complete bibliographic information, a link to the original publication on https://publichealth.jmir.org, as well as this copyright and license information must be included.</p>
      </license>
      <self-uri xlink:href="https://publichealth.jmir.org/2024/1/e57203" xlink:type="simple"/>
      <related-article related-article-type="corrected-article" id="v9i1e44204" ext-link-type="doi" xlink:href="10.2196/44204" vol="9" page="e44204" xlink:type="simple">https://publichealth.jmir.org/2023/1/e44204</related-article>
    </article-meta>
  </front>
  <body>
    <p>In “Comparison of Four Active SARS-CoV-2 Surveillance Strategies in Representative Population Sample Points: Two-Factor Factorial Randomized Controlled Trial” (JMIR Public Health Surveill 2023;9:e44204) the authors noted one error.</p>
    <p>In the originally published manuscript, the following sentence appeared in the “Study Design” section:</p>
    <disp-quote>
      <p>The 4 study arms represented all combinations of the two factors: (i) testing without condition (A) versus testing under the condition of upstream COVID-19 symptom prescreening (B) and (ii) testing of individuals (1) versus households (2) testing of individuals versus households.</p>
    </disp-quote>
    <p>This sentence has been corrected to:</p>
    <disp-quote>
      <p>The 4 study arms represented all combinations of two factors: i) testing unconditional (A) versus testing under the condition of upstream COVID-19 symptom prescreening (B), and ii) testing individuals (1) versus households (2).</p>
    </disp-quote>
    <p>The correction will appear in the online version of the paper on the JMIR Publications website on February 16, 2024, together with the publication of this correction notice. Because this was made after submission to PubMed, PubMed Central, and other full-text repositories, the corrected article has also been resubmitted to those repositories.</p>
  </body>
</article>
