<?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>1561-3194</journal-id>
<journal-title><![CDATA[Revista de Ciencias Médicas de Pinar del Río]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Ciencias Médicas]]></abbrev-journal-title>
<issn>1561-3194</issn>
<publisher>
<publisher-name><![CDATA[Editorial Ciencias Médicas]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1561-31942022000300011</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Enfermedades crónicas y tabaquismo en la infección por SARS-CoV-2 en Pinar del Río]]></article-title>
<article-title xml:lang="en"><![CDATA[Chronic diseases and smoking in SARS-CoV-2 infection in Pinar del Rio]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Valdés-Lanza]]></surname>
<given-names><![CDATA[Liana]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Orraca-Castillo]]></surname>
<given-names><![CDATA[Odalys]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lardoeyt-Ferrer]]></surname>
<given-names><![CDATA[Roberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Orraca-Castillo]]></surname>
<given-names><![CDATA[Miladys]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez-Carmona]]></surname>
<given-names><![CDATA[Yusleivy]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Miló-Valdés]]></surname>
<given-names><![CDATA[Carlos Alfredo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Ciencias Médicas de Pinar del Río Hospital Pediátrico Provincial Docente &#8220;Pepe Portilla&#8221; ]]></institution>
<addr-line><![CDATA[Pinar del Río ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Ciencias Médicas de Pinar del Río Facultad de Ciencias Médicas &#8220;Dr. Ernesto Che Guevara de la Serna&#8221; ]]></institution>
<addr-line><![CDATA[Pinar del Río ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de Ciencias Médicas de La Habana Facultad de Medicina Finlay-Albarrán ]]></institution>
<addr-line><![CDATA[La Habana ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Ministerio de Salud Pública  ]]></institution>
<addr-line><![CDATA[La Habana ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Universidad de Ciencias Médicas de Pinar del Río Dirección Provincial de Salud ]]></institution>
<addr-line><![CDATA[Pinar del Río ]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2022</year>
</pub-date>
<volume>26</volume>
<numero>3</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S1561-31942022000300011&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S1561-31942022000300011&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S1561-31942022000300011&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción:  el mundo enfrenta una nueva pandemia ante el brote de SARS-CoV-2 iniciado en Wuhan, China en diciembre de 2019. Las diferencias genéticas del hospedero y factores de riesgo como: antecedentes personales, estilos de vida y factores ambientales pueden contribuir a la marcada variabilidad clínica interindividual en la COVID-19.  Objetivo: identificar los antecedentes patológicos personales (enfermedades crónicas y tabaquismo) asociados a la infección por SARS-CoV-2.  Métodos:  estudio observacional analítico de casos y controles en Pinar del Río en el período comprendido entre marzo de 2020 a marzo de 2021. Se exploraron antecedentes personales de enfermedades crónicas y el antecedente de tabaquismo como factor ambiental.  Resultados:  los antecedentes patológicos personales de alergia y asma constituyeron factores de riesgo para desarrollar síntomas. Se presenta el antecedente de fumador activo como un factor de riesgo para la infección.  Conclusiones:  se demuestra la contribución de los antecedentes patológicos personales (alergia y asma), y ambientales (fumador activo) a la infección por SARS-CoV-2 y al desarrollo de síntomas en pacientes de COVID-19 en Pinar del Río.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Introduction:  the world deals with a new pandemic because of SARS-CoV-2 outbreak initiated in Wuhan, China in December 2019. Host genetic differences and risk factors such as: personal history, lifestyles and environmental factors may contribute to the marked inter-individual clinical variability in COVID-19.  Objective:  to identify personal pathological history (chronic diseases and smoking) associated with SARS-CoV-2 infection.  Methods:  analytical, observational study of cases and controls in Pinar del Rio in the period from March 2020 to March 2021. Personal history of chronic diseases and smoking as an environmental factor were explored.  Results:  personal pathological history of allergies and asthma constituted risk factors to develop symptoms. History of active smoking is presented as a risk factor for infection.  Conclusions:  the contribution of personal pathological history (allergy and asthma) and environmental (active smoking) to SARS-CoV-2 infection and to the development of symptoms in COVID-19 patients in Pinar del Rio is confirmed.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[COVID-19]]></kwd>
<kwd lng="es"><![CDATA[SARS-COV-2]]></kwd>
<kwd lng="es"><![CDATA[CORONAVIRUS]]></kwd>
<kwd lng="es"><![CDATA[ENFERMEDADES CRÓNICAS]]></kwd>
<kwd lng="es"><![CDATA[TABAQUISMO]]></kwd>
<kwd lng="en"><![CDATA[COVID-19]]></kwd>
<kwd lng="en"><![CDATA[SARS-COV-2]]></kwd>
<kwd lng="en"><![CDATA[CORONAVIRUS]]></kwd>
<kwd lng="en"><![CDATA[CHRONIC DISEASE]]></kwd>
<kwd lng="en"><![CDATA[SMOKING]]></kwd>
</kwd-group>
</article-meta>
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