<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0120-4157</journal-id>
<journal-title><![CDATA[Biomédica]]></journal-title>
<abbrev-journal-title><![CDATA[Biomed.]]></abbrev-journal-title>
<issn>0120-4157</issn>
<publisher>
<publisher-name><![CDATA[Instituto Nacional de Salud]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-41572020000600139</article-id>
<article-id pub-id-type="doi">10.7705/biomedica.5829</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Desempeño de las pruebas combinadas de IgM e IgG rápidas en la vigilancia ocupacional de COVID-19 en empresas colombianas]]></article-title>
<article-title xml:lang="en"><![CDATA[Performance of rapid IgM-IgG combined antibody tests in the occupational surveillance of COVID-19 in Colombian enterprises]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Idrovo]]></surname>
<given-names><![CDATA[Álvaro J.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Moreno-Montoya]]></surname>
<given-names><![CDATA[José]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pinzón-Flórez]]></surname>
<given-names><![CDATA[Carlos E.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Industrial de Santander Departamento de Salud Pública ]]></institution>
<addr-line><![CDATA[Bucaramanga ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Fundación Santa Fe de Bogotá  ]]></institution>
<addr-line><![CDATA[Bogotá D.C]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,EPS Sanitas  ]]></institution>
<addr-line><![CDATA[Bogotá D.C]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>10</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>10</month>
<year>2020</year>
</pub-date>
<volume>40</volume>
<fpage>139</fpage>
<lpage>147</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-41572020000600139&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-41572020000600139&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-41572020000600139&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Introducción. Las pruebas combinadas de IgM e IgG rápidas pueden tener un papel importante en la vigilancia de la COVID-19 y en su diagnóstico, así como en la evaluación de la respuesta inmunológica y la verificación de los avances hacia la inmunidad de rebaño.  Objetivo. Evaluar el desempeño de las pruebas rápidas de anticuerpos en la vigilancia ocupacional de la COVID-19 en un grupo de empresas colombianas.  Materiales y métodos. Se usaron datos de la vigilancia ocupacional de empresas que hicieron pruebas serológicas periódicas a todo el personal desde finales de abril hasta comienzos de julio de 2020. Los trabajadores laboraban en grupos pequeños ("burbujas sociales") para evitar brotes y optimizar la vigilancia. La sensibilidad se estimó como si el muestreo respondiera a un diseño prospectivo. Se describieron, asimismo, los cambios en las pruebas serológicas por medio de rondas periódicas.  Resultados. Se obtuvieron datos de 4.740 trabajadores, de los cuales solo 23 eran sintomáticos. En ellos se evidenciaron cambios de IgM(-)/IgG(-) a IgM(+), y luego a IgM(+)/ IgG(+) e IgG(+). La sensibilidad fue de 40,94 % para las IgM(+) y 47,95 % para las IgM(+)/ IgG(+), lo que implica que se pudo detectar un poco menos de la mitad de los casos.  Conclusión. Las pruebas rápidas de anticuerpos tienen un papel en el proceso diagnóstico de la infección y deben evaluarse teniendo en cuenta el momento de la epidemia, el tipo de prueba comprada y las poblaciones de riesgo, dado que sus resultados dependen del número de contagios y de casos. En el contexto de la presente crisis sanitaria pueden optimizarse si se organizan los trabajadores en "burbujas sociales".]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Introduction: Rapid IgM-IgG combined antibody tests can play an important role in the COVID-19 surveillance by supporting the diagnosis of infection, assessing the immune response, and verifying the progress towards herd immunity.  Objective: To evaluate the performance of rapid IgM-IgG combined antibody tests in COVID-19 occupational surveillance in a group of Colombian enterprises.  Materials and methods: We used the occupational surveillance data from companies that had performed periodic serological tests on all personnel from the end of April to the beginning of July, 2020. Workers were organized in small groups ("social bubbles") to prevent outbreaks and optimize surveillance. The sensitivity was estimated as if the sampling had a prospective design. We describe here the changes in serological testing through periodic rounds.  Results: Data were obtained from 4,740 workers, of whom only 23 were symptomatic showing changes from IgM(-)/IgG(-) to IgM(+) and then to IgM(+)/IgG(+) and IgG(+). The sensitivity was 40.94% for IgM(+) and 47.95% for IgM(+)/IgG(+). This implies that a little less than half of the cases can be detected.  Conclusion: Antibody rapid tests have a role in the diagnostic process of infection and they must be evaluated taking into account the moment of the epidemic, the type of test purchased, and the populations at risk since their results depend on the number of infections and cases. In the context of a health crisis, they can be optimized by organizing workers into "social bubbles".]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[infecciones por coronavirus]]></kwd>
<kwd lng="es"><![CDATA[epidemias]]></kwd>
<kwd lng="es"><![CDATA[inmunidad]]></kwd>
<kwd lng="es"><![CDATA[salud laboral]]></kwd>
<kwd lng="en"><![CDATA[Coronavirus infections]]></kwd>
<kwd lng="en"><![CDATA[epidemics]]></kwd>
<kwd lng="en"><![CDATA[immunity]]></kwd>
<kwd lng="en"><![CDATA[occupational health]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<label>1</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bambra]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Riordan]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Ford]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Matthews]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The COVID-19 pandemic and health inequalities]]></article-title>
<source><![CDATA[J Epidemiol Community Health]]></source>
<year>2020</year>
<volume>74</volume>
<page-range>964-8</page-range></nlm-citation>
</ref>
<ref id="B2">
<label>2</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Douglas]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Katikireddi]]></surname>
<given-names><![CDATA[SV]]></given-names>
</name>
<name>
<surname><![CDATA[Taulbut]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[McKee]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[McCartney]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Mitigating the wider health effects of covid-19 pandemic response]]></article-title>
<source><![CDATA[Br Med J]]></source>
<year>2020</year>
<volume>369</volume>
<page-range>m1557</page-range></nlm-citation>
</ref>
<ref id="B3">
<label>3</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[McKee]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Stuckler]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[If the world fails to protect the economy, COVID-19 will damage health not just now but also in the future]]></article-title>
<source><![CDATA[Nature Med]]></source>
<year>2020</year>
<volume>26</volume>
<page-range>640-2</page-range></nlm-citation>
</ref>
<ref id="B4">
<label>4</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Leclerc]]></surname>
<given-names><![CDATA[QJ]]></given-names>
</name>
<name>
<surname><![CDATA[Fuller]]></surname>
<given-names><![CDATA[NM]]></given-names>
</name>
<name>
<surname><![CDATA[Knight]]></surname>
<given-names><![CDATA[LE]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[CMMID COVID-19 Working Group, Funk S, Knight GM. What settings have been linked to SARS-CoV-2 transmission clusters?]]></article-title>
<source><![CDATA[Wellcome Open Res]]></source>
<year>2020</year>
<page-range>5</page-range></nlm-citation>
</ref>
<ref id="B5">
<label>5</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pollán]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Pérez-Gómez]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Pastor-Barriuso]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Oteo]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Hernán]]></surname>
<given-names><![CDATA[MA]]></given-names>
</name>
<name>
<surname><![CDATA[Pérez-Olmeda]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Prevalence of SARS-CoV-2 in Spain (ENE-COVID): A nationwide, population-based seroepidemiological study]]></article-title>
<source><![CDATA[Lancet]]></source>
<year>2020</year>
<volume>396</volume>
<page-range>535-44</page-range></nlm-citation>
</ref>
<ref id="B6">
<label>6</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Manrique-Hernández]]></surname>
<given-names><![CDATA[EF]]></given-names>
</name>
<name>
<surname><![CDATA[Moreno-Montoya]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Hurtado-Ortiz]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Prieto-Alvarado]]></surname>
<given-names><![CDATA[FE]]></given-names>
</name>
<name>
<surname><![CDATA[Idrovo]]></surname>
<given-names><![CDATA[AJ]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Desempeño del sistema de vigilancia colombiano durante la pandemia de COVID-19: evaluación rápida de los primeros 50 días]]></article-title>
<source><![CDATA[Biomédica]]></source>
<year>2020</year>
<volume>40</volume>
<page-range>96-103</page-range></nlm-citation>
</ref>
<ref id="B7">
<label>7</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Coronel-Sánchez]]></surname>
<given-names><![CDATA[VH]]></given-names>
</name>
<name>
<surname><![CDATA[Álvarez-Pabón]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
<name>
<surname><![CDATA[Esteban]]></surname>
<given-names><![CDATA[LY]]></given-names>
</name>
<name>
<surname><![CDATA[Vargas-Valero]]></surname>
<given-names><![CDATA[Ó]]></given-names>
</name>
<name>
<surname><![CDATA[Omaña]]></surname>
<given-names><![CDATA[JJ]]></given-names>
</name>
<name>
<surname><![CDATA[Idrovo]]></surname>
<given-names><![CDATA[AJ]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Lay-based morbidity profiles of sugar cane workers: Testing a new method using free lists]]></article-title>
<source><![CDATA[J Prim Prev]]></source>
<year>2020</year>
<volume>41</volume>
<page-range>39-49</page-range></nlm-citation>
</ref>
<ref id="B8">
<label>8</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Shah]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Healthy worker effect phenomenon]]></article-title>
<source><![CDATA[Indian J Occup Environ Med]]></source>
<year>2009</year>
<volume>13</volume>
<page-range>77-9</page-range></nlm-citation>
</ref>
<ref id="B9">
<label>9</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Block]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Hoffman]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Raabe]]></surname>
<given-names><![CDATA[IJ]]></given-names>
</name>
<name>
<surname><![CDATA[Dowd]]></surname>
<given-names><![CDATA[JB]]></given-names>
</name>
<name>
<surname><![CDATA[Rahal]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Kashyap]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Mills]]></surname>
<given-names><![CDATA[MC]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Social network-based distancing strategies to flatten the COVID-19 curve in a post-lockdown world]]></article-title>
<source><![CDATA[Nat Hum Behav]]></source>
<year>2020</year>
<volume>4</volume>
<page-range>588-96</page-range></nlm-citation>
</ref>
<ref id="B10">
<label>10</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Estrada-Orozco]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Robayo]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Arévalo]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Zabaleta]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Mercado-Reyes]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<source><![CDATA[Validación secundaria y verificación del desempeño de la prueba rápida "COVID-19 IgG/IgM Rapid Test Device]]></source>
<year>2020</year>
<publisher-loc><![CDATA[Bogotá ]]></publisher-loc>
<publisher-name><![CDATA[Instituto Nacional de Salud, Instituto de Evaluación Tecnológica en Salud]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B11">
<label>11</label><nlm-citation citation-type="book">
<collab>Ministerio de Salud y Protección Social</collab>
<source><![CDATA[Lineamientos para el uso de pruebas moleculares RT-PCR, pruebas de antígeno y pruebas serológicas para SARS-COV-2 (COVID-19) en Colombia]]></source>
<year>2020</year>
<publisher-loc><![CDATA[Bogotá ]]></publisher-loc>
<publisher-name><![CDATA[Ministerio de Salud y Protección Social]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B12">
<label>12</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Orozco]]></surname>
<given-names><![CDATA[LC]]></given-names>
</name>
<name>
<surname><![CDATA[Camargo]]></surname>
<given-names><![CDATA[DM]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Evaluación de tecnologías diagnósticas y tipos de muestreos]]></article-title>
<source><![CDATA[Biomédica]]></source>
<year>1997</year>
<volume>17</volume>
<page-range>321-4</page-range></nlm-citation>
</ref>
<ref id="B13">
<label>13</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kraemer]]></surname>
<given-names><![CDATA[HC]]></given-names>
</name>
</person-group>
<source><![CDATA[Evaluating medical tests. Objective and quantitative guidelines]]></source>
<year>1992</year>
<publisher-loc><![CDATA[Newbury Park ]]></publisher-loc>
<publisher-name><![CDATA[Sage Publications]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B14">
<label>14</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[dos Santos]]></surname>
<given-names><![CDATA[WG]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Natural history of COVID-19 and current knowledge on treatment therapeutic options]]></article-title>
<source><![CDATA[Biomed Pharmacother]]></source>
<year>2020</year>
<volume>129</volume>
<page-range>110493</page-range></nlm-citation>
</ref>
<ref id="B15">
<label>15</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sethuraman]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Jeremiah]]></surname>
<given-names><![CDATA[SS]]></given-names>
</name>
<name>
<surname><![CDATA[Ryo]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Interpreting diagnostic tests for SARS-CoV-2]]></article-title>
<source><![CDATA[JAMA]]></source>
<year>2020</year>
<volume>323</volume>
<page-range>2249-51</page-range></nlm-citation>
</ref>
<ref id="B16">
<label>16</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bastos]]></surname>
<given-names><![CDATA[ML]]></given-names>
</name>
<name>
<surname><![CDATA[Tavaziva]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Abidi]]></surname>
<given-names><![CDATA[SK]]></given-names>
</name>
<name>
<surname><![CDATA[Campbell]]></surname>
<given-names><![CDATA[JR]]></given-names>
</name>
<name>
<surname><![CDATA[Haraoui]]></surname>
<given-names><![CDATA[LP]]></given-names>
</name>
<name>
<surname><![CDATA[Johnston]]></surname>
<given-names><![CDATA[JC]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Diagnostic accuracy of serological tests for covid-19: Systematic review and meta-analysis]]></article-title>
<source><![CDATA[Br Med J]]></source>
<year>2020</year>
<volume>370</volume>
<page-range>m2516</page-range></nlm-citation>
</ref>
<ref id="B17">
<label>17</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mahé]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Gaffikin]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Screening test accuracy studies: How valid are our conclusions? Application to visual inspection methods for cervical screening]]></article-title>
<source><![CDATA[Cancer Causes Control]]></source>
<year>2005</year>
<volume>16</volume>
<page-range>657-66</page-range></nlm-citation>
</ref>
<ref id="B18">
<label>18</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kosack]]></surname>
<given-names><![CDATA[CS]]></given-names>
</name>
<name>
<surname><![CDATA[Page]]></surname>
<given-names><![CDATA[AL]]></given-names>
</name>
<name>
<surname><![CDATA[Klatser]]></surname>
<given-names><![CDATA[PR]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A guide to aid the selection of diagnostic tests]]></article-title>
<source><![CDATA[Bull World Health Organ]]></source>
<year>2017</year>
<volume>95</volume>
<page-range>639-45</page-range></nlm-citation>
</ref>
<ref id="B19">
<label>19</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Larremore]]></surname>
<given-names><![CDATA[DB]]></given-names>
</name>
<name>
<surname><![CDATA[Wilder]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Lester]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Shehata]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Burke]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
<name>
<surname><![CDATA[Hay]]></surname>
<given-names><![CDATA[JA]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Test sensitivity is secondary to frequency and turnaround time for COVID-19 surveillance]]></article-title>
<source><![CDATA[medRxiv]]></source>
<year>2020</year>
</nlm-citation>
</ref>
<ref id="B20">
<label>20</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Show]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
</person-group>
<source><![CDATA[Failing the coronavirus-testing test]]></source>
<year>2020</year>
<publisher-name><![CDATA[Harvard Magazine]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B21">
<label>21</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Dorfman]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The detection of defective members of large populations]]></article-title>
<source><![CDATA[Ann Mat Stat]]></source>
<year>1943</year>
<volume>14</volume>
<page-range>436-40</page-range></nlm-citation>
</ref>
<ref id="B22">
<label>22</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nguyen]]></surname>
<given-names><![CDATA[NT]]></given-names>
</name>
<name>
<surname><![CDATA[Bish]]></surname>
<given-names><![CDATA[EK]]></given-names>
</name>
<name>
<surname><![CDATA[Aprahamian]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Sequential prevalence estimation with pooling and continuous test outcomes]]></article-title>
<source><![CDATA[Stat Med]]></source>
<year>2018</year>
<volume>37</volume>
<page-range>2391-426</page-range></nlm-citation>
</ref>
<ref id="B23">
<label>23</label><nlm-citation citation-type="book">
<collab>Procuraduría General de la Nación</collab>
<source><![CDATA[15.053 resultados de pruebas para COVID-19 no han sido entregados]]></source>
<year>2020</year>
<publisher-loc><![CDATA[Bogotá ]]></publisher-loc>
<publisher-name><![CDATA[Procuraduría General de la Nación]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B24">
<label>24</label><nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Guenther]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Czech-Sioli]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Indenbirken]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Robitailles]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Tenhaken]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Exner]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<source><![CDATA[Investigation of a superspreading event preceding the largest meat processing plant-related SARS-Coronavirus 2 outbreak in Germany]]></source>
<year></year>
</nlm-citation>
</ref>
<ref id="B25">
<label>25</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Randolph]]></surname>
<given-names><![CDATA[HE]]></given-names>
</name>
<name>
<surname><![CDATA[Barreiro]]></surname>
<given-names><![CDATA[LB]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Herd immunity: Understanding COVID-19]]></article-title>
<source><![CDATA[Immunity]]></source>
<year>2020</year>
<volume>52</volume>
<page-range>737-41</page-range></nlm-citation>
</ref>
<ref id="B26">
<label>26</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kissler]]></surname>
<given-names><![CDATA[SM]]></given-names>
</name>
<name>
<surname><![CDATA[Tedijanto]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Goldstein]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Grad]]></surname>
<given-names><![CDATA[YH]]></given-names>
</name>
<name>
<surname><![CDATA[Lipsitch]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Projecting the transmission dynamics of SARS-CoV-2 through the postpandemic period]]></article-title>
<source><![CDATA[Science]]></source>
<year>2020</year>
<volume>368</volume>
<page-range>860-8</page-range></nlm-citation>
</ref>
<ref id="B27">
<label>27</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Tang]]></surname>
<given-names><![CDATA[YW]]></given-names>
</name>
<name>
<surname><![CDATA[Schmitz]]></surname>
<given-names><![CDATA[JE]]></given-names>
</name>
<name>
<surname><![CDATA[Persing]]></surname>
<given-names><![CDATA[DH]]></given-names>
</name>
<name>
<surname><![CDATA[Stratton]]></surname>
<given-names><![CDATA[CW]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The laboratory diagnosis of COVID-19 infection: Current issues and challenges]]></article-title>
<source><![CDATA[J Clin Microbiol]]></source>
<year>2020</year>
<volume>58</volume>
<page-range>e00512-20</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
