<?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>S1665-11462019000500237</article-id>
<article-id pub-id-type="doi">10.24875/bmhim.1905</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Toxic shock syndrome caused by Streptococcus dysgalactiae subsp. equisimilis in a Mexican preschool patient]]></article-title>
<article-title xml:lang="es"><![CDATA[Síndrome de choque tóxico por Streptococcus dysgalactiae subsp. equisimilis en un paciente preescolar mexicano]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodríguez-Muñoz]]></surname>
<given-names><![CDATA[Lorena]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García-Galván]]></surname>
<given-names><![CDATA[Óscar]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González-Soto]]></surname>
<given-names><![CDATA[Miguel Á.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Echániz-Avilés]]></surname>
<given-names><![CDATA[Gabriela]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Solórzano-Santos]]></surname>
<given-names><![CDATA[Fortino]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital del Niño  ]]></institution>
<addr-line><![CDATA[Saltillo Coahuila]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Nacional de Salud Pública Departamento de Evaluación de Vacunas ]]></institution>
<addr-line><![CDATA[Cuernavaca Morelos]]></addr-line>
<country>México</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Hospital Infantil de México Federico Gómez Unidad de Investigación Medicina Basada en Evidencias ]]></institution>
<addr-line><![CDATA[Mexico City ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>10</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>10</month>
<year>2019</year>
</pub-date>
<volume>76</volume>
<numero>5</numero>
<fpage>237</fpage>
<lpage>240</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1665-11462019000500237&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1665-11462019000500237&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1665-11462019000500237&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Background: Severe infections due to Streptococcus dysgalactiae subsp. equisimilis (SDSE) have been identified in adults and may cause toxic shock syndrome, although with a low frequency.  Case report:  A preschool-age female patient, who started with an upper respiratory tract infection developing a gradual deterioration in the following three days, is described. She was admitted to the hospital in severe conditions, with tachypnea, tachycardia (200/min), hypotension (blood pressure 68/40 mmHg), capillary refill of 7 s, and erythematous maculopapular rash in thorax, abdomen and lower extremities. She received intensive management with an inadequate response. Furthermore, she developed multiple organ failure and died 8 h after admission. The blood culture was positive for S. dysgalactiae subsp. equisimilis.  Conclusions:  SDSE is a rare pathogen in children. In Mexico, cases of SDSE have not been reported probably due to an inaccurate identification. Mexican pediatricians should be alert to this situation.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Introducción: En adultos, se han identificado infecciones graves por Streptococcus dysgalactiae subsp. equisimilis (SDSE), que pueden causar el síndrome de choque tóxico causado por SDSE, aunque es de baja frecuencia.  Caso clínico:  Paciente de sexo femenino en edad preescolar. Comenzó con una infección del tracto respiratorio superior, y desarrolló un deterioro gradual en los siguientes tres días. Ingresó en el hospital en condiciones graves, con taquipnea, taquicardia (200/min), hipotensión (tensión arterial, TA 68/40 mmHg), llenado capilar de 7 s y erupción maculopapular eritematosa en el tórax, abdomen y extremidades inferiores. Recibió manejo intensivo, sin una buena respuesta. Posteriormente, desarrolló datos de falla orgánica múltiple y murió 8 h después de su ingreso. El hemocultivo fue positivo para S. dysgalactiae subsp. equisimilis.  Conclusiones:  El SDSE es un patógeno raro en los niños. En México, no se han reportado casos de SDSE probablemente debido a una identificación errónea. Los pediatras mexicanos deben estar atentos a esta situación.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Streptococcus dysgalactiae]]></kwd>
<kwd lng="en"><![CDATA[Streptococcal toxic shock síndrome]]></kwd>
<kwd lng="en"><![CDATA[Severe streptococcal infection]]></kwd>
<kwd lng="es"><![CDATA[Streptococcus dysgalactiae]]></kwd>
<kwd lng="es"><![CDATA[Síndrome de choque tóxico estreptocócico]]></kwd>
<kwd lng="es"><![CDATA[Infección estreptocócica grave]]></kwd>
</kwd-group>
</article-meta>
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