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<articles>
<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 pub-id-type="pid">S1017-854619980001</journal-id>
<journal-title>Revista Médica del Hospital Nacional de Niños Dr. Carlos Sáenz Herrera</journal-title>
<abbrev-journal-title>Rev. méd. Hosp. Nac. Niños (Costa Rica)</abbrev-journal-title>
<issn>1017-8546</issn>
<publisher>
<publisher-name>Editorial Nacional de Salud y Seguridad Social</publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1017-85461998000100001</article-id>
<title-group>
<article-title xml:lang="es">Infecciones del tracto respiratorio: etiología bacteriana y viral en una población pediátrica</article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
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<surname>Somogyi</surname>
<given-names>Teresita</given-names>
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<contrib contrib-type="author">
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<surname>Alfaro</surname>
<given-names>Wilber</given-names>
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<contrib contrib-type="author">
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<surname>Herrera</surname>
<given-names>Marco L</given-names>
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<contrib contrib-type="author">
<name>
<surname>Herrera</surname>
<given-names>José F</given-names>
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<xref ref-type="aff" rid="A04"/>
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</contrib-group>
<aff id="A01">
<institution>,Universidad de Costa Rica Cátedra de Virología Médica Departamento de Microbiología e Inmunología</institution>
<addr-line> </addr-line>
</aff>
<aff id="A02">
<institution>,Universidad de Costa Rica Centro de Investigaciones en Enfermedades Tropicales </institution>
<addr-line> </addr-line>
</aff>
<aff id="A03">
<institution>,Hospital Nacional de Niños Dr. Carlos Sáenz Herrera División de Microbiología Laboratorio Clínico</institution>
<addr-line> </addr-line>
</aff>
<aff id="A04">
<institution>,Hospital Nacional de Niños Dr. Carlos Sáenz Herrera División de Inmunología Laboratorio Clínico</institution>
<addr-line>San José </addr-line>
<country>Costa Rica</country>
</aff>
<pub-date pub-type="pub">
<year>1998</year>
</pub-date>
<pub-date pub-type="epub">
<year>1998</year>
</pub-date>
<volume>33</volume>
<fpage>5</fpage>
<lpage>18</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http:/www.scielo.sa.cr/scielo.php?script=sci_arttext&amp;pid=S1017-85461998000100001&amp;lng=en&amp;nrm=iso&amp;tlng=en"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_abstract&amp;pid=S1017-85461998000100001&amp;lng=en&amp;nrm=iso&amp;tlng=en"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_pdf&amp;pid=S1017-85461998000100001&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p>Las infecciones del tracto respiratorio inferior constituyen una causa importante de morbi-mortalidad en la población pediátrica. En este estudio se realizaron 404 muestras respiratorias obtenidas de niños admitidos al Hospital Nacional de Niños con cuadros de infección respiratoria. Se estableció la presencia de bacterias patógenas por aislamiento y de virus respiratorios por detección de antígenos por inmunofluorescencia. De las bacterias patógenas, S. aureus es la bacteria que se aísla con más frecuencia (17,4%) y el S.pneumoniae ocupa el segundo lugar en prevalencia (12,5%). Dentro de los agentes virales, el virus respiratorio sincicial se identificó en 33,4% de las muestras analizadas. Se discuten estos hallazgos en función del tipo de muestra empleada y del cuadro clínico, entre otros, así como el papel del Laboratorio Clínico en el diagnóstico de estas infecciones.</p></abstract>
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<journal-id pub-id-type="pid">S1017-854619980001</journal-id>
<journal-title>Revista Médica del Hospital Nacional de Niños Dr. Carlos Sáenz Herrera</journal-title>
<abbrev-journal-title>Rev. méd. Hosp. Nac. Niños (Costa Rica)</abbrev-journal-title>
<issn>1017-8546</issn>
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<publisher-name>Editorial Nacional de Salud y Seguridad Social</publisher-name>
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<institution>,Caja Costarricense de Seguro Social Hospital de Ciudad Neily Laboratorio Clínico</institution>
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<year>1998</year>
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<pub-date pub-type="epub">
<year>1998</year>
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<fpage>43</fpage>
<lpage>47</lpage>
<copyright-statement/>
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<self-uri xlink:href="http:/www.scielo.sa.cr/scielo.php?script=sci_arttext&amp;pid=S1017-85461998000100008&amp;lng=en&amp;nrm=iso&amp;tlng=en"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_abstract&amp;pid=S1017-85461998000100008&amp;lng=en&amp;nrm=iso&amp;tlng=en"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_pdf&amp;pid=S1017-85461998000100008&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p>Se registra un caso de otitis crónica no asociada a infección bacteriana, rebelde al tratamiento convencional, causada por Aspergillus niger, Aspergillus sp. y Candida albicans.</p></abstract>
<abstract abstract-type="short" xml:lang="en"><p>A case is register of chronic otitis not associated with bacterial infection, with timpanic perforation, caused for Aspergillus niger, Aspergillus sp. and Candida albicans.</p></abstract>
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