<?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>0036-3634</journal-id>
<journal-title><![CDATA[Salud Pública de México]]></journal-title>
<abbrev-journal-title><![CDATA[Salud pública Méx]]></abbrev-journal-title>
<issn>0036-3634</issn>
<publisher>
<publisher-name><![CDATA[Instituto Nacional de Salud Pública]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0036-36342021000100027</article-id>
<article-id pub-id-type="doi">10.21149/11241</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Syphilis infection markers among HIV positive individuals in the Mexico City HIV/AIDS Program]]></article-title>
<article-title xml:lang="es"><![CDATA[Marcadores de infección por sífilis de individuos VIH positivos en el Programa de VIH/SIDA de la Ciudad de México]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Juárez-Figueroa]]></surname>
<given-names><![CDATA[Luis Alfredo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Uribe-Salas]]></surname>
<given-names><![CDATA[Felipe Javier]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vargas-Guadarrama]]></surname>
<given-names><![CDATA[Galileo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González-Rodríguez]]></surname>
<given-names><![CDATA[Andrea]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ruiz-González]]></surname>
<given-names><![CDATA[Verónica]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Medina-Islas]]></surname>
<given-names><![CDATA[Yazmín]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández-Nevares]]></surname>
<given-names><![CDATA[Pilar]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Iracheta-Hernández]]></surname>
<given-names><![CDATA[Patricia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Clínica Especializada Condesa  ]]></institution>
<addr-line><![CDATA[ Ciudad de México]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,El Colegio de la Frontera Norte  ]]></institution>
<addr-line><![CDATA[ Coahuila]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Instituto Nacional de Salud Pública  ]]></institution>
<addr-line><![CDATA[ Cuernavaca]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Clínica Especializada Condesa Iztapalapa  ]]></institution>
<addr-line><![CDATA[ Ciudad de México]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>02</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>02</month>
<year>2021</year>
</pub-date>
<volume>63</volume>
<numero>1</numero>
<fpage>27</fpage>
<lpage>33</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0036-36342021000100027&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0036-36342021000100027&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0036-36342021000100027&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract:  Objective: The aim of this study is to evaluate the prevalence of T. pallidum infection markers in HIV-positive individuals receiving highly active antiretroviral therapy (ART) in the Mexico City HIV/AIDS Program, as well as predictive characteristics.  Materials and methods: The reverse serologic algorithm method was used for the T. pallidum diagnosis, and applied to 2 383 HIV-positive individuals. Sociodemographic characteristics, sexual practices, previous syphilis diagnosis, and length of antiretroviral treatment, were evaluated. Variables significantly associated with syphilis markers were analyzed using a logistic regression model.  Results: Prevalence of &#8220;active or resolved&#8221; and &#8220;probable active&#8221; infection markers were 44.2 and 28.8%, respectively. Predictive factors were: Clínica Especializada Condesa Iztapalapa (CECI), previous syphilis diagnosis, men in who have sex with men (MSM), and receptive sex practices.  Conclusions: The prevalence of T. pallidum infection markers was the highest ever reported in Mexico, and was related to specific sexual practices as well as previous syphilis diagnosis, elements which require preventive measures in the Mexico City HIV/AIDS Program.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen:  Objetivo: Evaluar las prevalencias de marcadores de infección por T. pallidum en personas que viven con VIH y reciben tratamiento antirretroviral en el Programa de VIH/SIDA de la Ciudad de México, así como sus características asociadas.  Material y métodos: Se siguió el método del algoritmo reverso para el diagnóstico de T. pallidum aplicado a 2 383 individuos VIH positivos, quienes contestaron un cuestionario sobre características sociodemográficas, prácticas sexuales, diagnóstico previo de sífilis y tiempo de tratamiento antirretroviral. Las variables significativamente asociadas con los marcadores de sífilis se analizaron mediante un modelo de regresión logística.  Resultados: Las prevalencias de marcadores de infección &#8220;activa o resuelta&#8221; y &#8220;probablemente activa&#8221; fueron 44.2 y 28.8%, respectivamente. Las características asociadas con los marcadores fueron Clínica Especializada Condesa Iztapalapa (CECI), diagnóstico previo de infección por sífilis, hombres que tienen sexo con hombres (HSH) y prácticas sexuales receptivas.  Conclusiones: Las prevalencias de marcadores de infección por T. pallidum fueron altas y estuvieron relacionadas con prácticas sexuales específicas y con el diagnóstico previo de sífilis, características que requieren medidas preventivas dentro del programa.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[HIV]]></kwd>
<kwd lng="en"><![CDATA[syphilis]]></kwd>
<kwd lng="en"><![CDATA[men]]></kwd>
<kwd lng="en"><![CDATA[sexual behavior]]></kwd>
<kwd lng="en"><![CDATA[Mexico City]]></kwd>
<kwd lng="es"><![CDATA[VIH]]></kwd>
<kwd lng="es"><![CDATA[sífilis]]></kwd>
<kwd lng="es"><![CDATA[hombres]]></kwd>
<kwd lng="es"><![CDATA[prácticas sexuales]]></kwd>
<kwd lng="es"><![CDATA[Ciudad de México]]></kwd>
</kwd-group>
</article-meta>
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