<?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>1665-1146</journal-id>
<journal-title><![CDATA[Boletín médico del Hospital Infantil de México]]></journal-title>
<abbrev-journal-title><![CDATA[Bol. Med. Hosp. Infant. Mex.]]></abbrev-journal-title>
<issn>1665-1146</issn>
<publisher>
<publisher-name><![CDATA[Instituto Nacional de Salud, Hospital Infantil de México Federico Gómez]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1665-11462021000600501</article-id>
<article-id pub-id-type="doi">10.24875/bmhim.21000039</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Children hospitalized for COVID-19 during the first winter of the pandemic in Buenos Aires, Argentina]]></article-title>
<article-title xml:lang="es"><![CDATA[Niños hospitalizados por COVID-19 durante el primer invierno de la pandemia en Buenos Aires, Argentina]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Raiden]]></surname>
<given-names><![CDATA[Silvina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cairoli]]></surname>
<given-names><![CDATA[Héctor]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Potasnik]]></surname>
<given-names><![CDATA[Javier]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lalla]]></surname>
<given-names><![CDATA[Sandra Di]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Chiolo]]></surname>
<given-names><![CDATA[María J.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Torres]]></surname>
<given-names><![CDATA[Fernando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Domínguez]]></surname>
<given-names><![CDATA[Paula]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ferrero]]></surname>
<given-names><![CDATA[Fernando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital General de Niños Pedro de Elizalde Departamento de Medicina ]]></institution>
<addr-line><![CDATA[Buenos Aires ]]></addr-line>
<country>Argentina</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Hospital General de Niños Pedro de Elizalde  ]]></institution>
<addr-line><![CDATA[Buenos Aires ]]></addr-line>
<country>Argentina</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2021</year>
</pub-date>
<volume>78</volume>
<numero>6</numero>
<fpage>501</fpage>
<lpage>505</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1665-11462021000600501&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1665-11462021000600501&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1665-11462021000600501&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Background: Although there are reports on COVID-19 in pediatrics, the characteristics of the population of each country, its health systems, and how the pandemic was addressed could give the disease distinctive features worldwide. We aimed to describe the characteristics of patients hospitalized for COVID-19 in a tertiary pediatric hospital in the City of Buenos Aires, Argentina.  Methods: We conducted a descriptive study, including all patients hospitalized for COVID-19 from 04/26/2020 to 10/31/2020 in a tertiary pediatric hospital. We described the demographic, clinical, and epidemiological characteristics of the patients.  Results: During the period studied, 578 patients were hospitalized with COVID-19. The median age was 4.2 years, and 83% reported close contact with a confirmed COVID-19 case. Regarding severity, 30.8% were asymptomatic, and 60.4% showed mild, 7.4% moderate, and 1.4% severe symptoms. Among symptomatic patients, fever was the most frequent symptom, followed by sore throat and cough.  Conclusions: We reported 578 cases of children and adolescents hospitalized with COVID-19, of which the majority showed mild or asymptomatic disease.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Introducción: Si bien existen reportes sobre COVID-19 en pediatría, es posible que las características de la población de cada país, sus sistemas de salud y cómo enfrentaron la pandemia hayan hecho que la enfermedad mostrara rasgos distintivos a escala global. El objetivo de este trabajo es describir las características de los pacientes hospitalizados por COVID-19 en un hospital pediátrico terciario de la ciudad de Buenos Aires, Argentina.  Métodos: Se llevó a cabo un estudio descriptivo que incluyó a todos los pacientes hospitalizados por COVID-19 del 26 de abril al 31 de octubre de 2020 en un hospital pediátrico de tercer nivel. Se describen las características demográficas, clínicas y epidemiológicas de los pacientes.  Resultados: Durante el período estudiado fueron hospitalizados 578 pacientes con COVID-19. La mediana de edad fue de 4.2 años y el 83% reportó antecedentes de contacto cercano con un caso confirmado de COVID-19. En cuanto a la gravedad, el 30.8% fueron asintomáticos y el 60.4% mostraron síntomas leves, el 7.4% moderados y el 1.4% graves. Entre los pacientes sintomáticos, el síntoma más frecuente fue la fiebre, seguida de odinofagia y tos.  Conclusiones: Se reportaron 578 casos de niños y adolescentes hospitalizados con COVID-19, de los cuales la mayoría presentó enfermedad leve o fueron asintomáticos.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Coronavirus infection]]></kwd>
<kwd lng="en"><![CDATA[COVID-19]]></kwd>
<kwd lng="en"><![CDATA[Pneumonia]]></kwd>
<kwd lng="en"><![CDATA[Hospitalization]]></kwd>
<kwd lng="en"><![CDATA[Children]]></kwd>
<kwd lng="es"><![CDATA[Infección por coronavirus]]></kwd>
<kwd lng="es"><![CDATA[COVID-19]]></kwd>
<kwd lng="es"><![CDATA[Neumonía]]></kwd>
<kwd lng="es"><![CDATA[Hospitalización]]></kwd>
<kwd lng="es"><![CDATA[Niños]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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