<?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>1870-7203</journal-id>
<journal-title><![CDATA[Acta médica Grupo Ángeles]]></journal-title>
<abbrev-journal-title><![CDATA[Acta méd. Grupo Ángeles]]></abbrev-journal-title>
<issn>1870-7203</issn>
<publisher>
<publisher-name><![CDATA[Grupo Ángeles, Servicios de Salud]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1870-72032021000300421</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Efectos a largo plazo de la COVID-19: una revisión de la literatura]]></article-title>
<article-title xml:lang="en"><![CDATA[Long-term effects of COVID-19: a review of the literature]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gutiérrez Bautista]]></surname>
<given-names><![CDATA[Deyanira]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mosqueda Martínez]]></surname>
<given-names><![CDATA[Edson Erivan]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vilchis]]></surname>
<given-names><![CDATA[Hiram Joaquín]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Morales Fernández]]></surname>
<given-names><![CDATA[José Antonio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cruz Salgado]]></surname>
<given-names><![CDATA[Alejandra Xóchitl]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Chávez Aguilar]]></surname>
<given-names><![CDATA[José Enrique]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ramírez Velázquez]]></surname>
<given-names><![CDATA[Ikky Omar]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Perón Medina]]></surname>
<given-names><![CDATA[Luis Ángel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García Osorno]]></surname>
<given-names><![CDATA[Zurisadai Raquel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vásquez Martínez]]></surname>
<given-names><![CDATA[Leonardo Martín]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Valadez González]]></surname>
<given-names><![CDATA[Yazmín]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Díaz Ramírez]]></surname>
<given-names><![CDATA[Jorge Baruch]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cortázar Maldonado]]></surname>
<given-names><![CDATA[Luis Alberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vite Velázquez]]></surname>
<given-names><![CDATA[Xcarelt]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García León]]></surname>
<given-names><![CDATA[Miguel Leonardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bautista Carbajal]]></surname>
<given-names><![CDATA[Patricia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ángel Ambrocio]]></surname>
<given-names><![CDATA[Antonio Humberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Wong Chew]]></surname>
<given-names><![CDATA[Rosa María]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional Autónoma de México Facultad de Medicina Laboratorio de Investigación en Enfermedades Infecciosas]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional Autónoma de México Facultad de Medicina Clínica de atención preventiva del viajero]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2021</year>
</pub-date>
<volume>19</volume>
<numero>3</numero>
<fpage>421</fpage>
<lpage>428</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-72032021000300421&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-72032021000300421&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-72032021000300421&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: La COVID-19 tiene un amplio espectro de manifestaciones clínicas durante su curso y se han encontrado al menos 55 efectos a largo plazo que incluyen signos, síntomas y parámetros clínicos. Las etapas clínicas de la enfermedad se dividen en la fase aguda, fase postaguda y síndrome post-COVID-19. Estas fases se caracterizan por el desarrollo de signos y síntomas desde el inicio hasta cuatro semanas, entre cuatro a 12 semanas y más allá de 12 semanas, respectivamente. La prevalencia de signos y síntomas varía desde 35% hasta 94%; en la mayoría de los estudios (80%) predominan la fatiga, tos y disnea. Los potenciales mecanismos fisiopatológicos que explican el desarrollo de los síntomas incluyen la persistencia viral, alteraciones inmunológicas e inflamación, secuelas esperadas de una enfermedad crítica y cambios fisiopatológicos específicos de la enfermedad aguda en cada sistema. Hasta el momento, se desconoce el espectro completo del síndrome post-COVID; a pesar de haber identificado muchos de sus componentes clínicos aún faltan datos para reconocer el tiempo exacto de duración.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: COVID-19 has a wide spectrum of clinical manifestations, at least 55 long-term effects have been found including signs, symptoms and clinical parameters. The clinical stages of the disease are divided into an acute phase of COVID-19, post-acute phase, and post-COVID-19 syndrome. These phases are characterized by the development of signs and symptoms from the date of onset of symptoms and extend up to 4 weeks, between 4 and 12 weeks and beyond 12 weeks respectively. The prevalence varies from 35% to 94%, prevailing in most studies above 80%, with fatigue, cough and dyspnea being the most prevalent.The pathophysiological mechanisms that explain the development of symptoms include viral persistence, immune alterations and inflammation, expected sequel of critical illness, and specific pathophysiological alteration of acute disease in each system. The complete spectrum of post-COVID syndrome is still unknown, although many of its clinical components have been identified, information is still lacking to recognize the exact moment to determine its duration.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Síndrome COVID postagudo]]></kwd>
<kwd lng="es"><![CDATA[SARS-CoV-2 secuelas]]></kwd>
<kwd lng="es"><![CDATA[COVID prolongado]]></kwd>
<kwd lng="es"><![CDATA[síntomas persistentes]]></kwd>
<kwd lng="es"><![CDATA[síndrome post-COVID]]></kwd>
<kwd lng="en"><![CDATA[Post-acute COVID-19 syndrome]]></kwd>
<kwd lng="en"><![CDATA[SARS-CoV-2 sequel]]></kwd>
<kwd lng="en"><![CDATA[long COVID]]></kwd>
<kwd lng="en"><![CDATA[persistent symptoms]]></kwd>
<kwd lng="en"><![CDATA[post-COVID syndrome]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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