<?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>0120-4157</journal-id>
<journal-title><![CDATA[Biomédica]]></journal-title>
<abbrev-journal-title><![CDATA[Biomédica]]></abbrev-journal-title>
<issn>0120-4157</issn>
<publisher>
<publisher-name><![CDATA[Instituto Nacional de Salud]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-41572017000300390</article-id>
<article-id pub-id-type="doi">10.7705/biomedica.v34i2.3223</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Molecular characterization of non-vaccine Streptococcus pneumoniae serotypes 11A, 15 B/C and 23A recovered from invasive isolates in Colombia]]></article-title>
<article-title xml:lang="es"><![CDATA[Caracterización molecular de los serotipos no vacunales 11A, 15 B/C y 23A de Streptococcus pneumoniae recuperados de aislamientos invasivos en Colombia]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Palacios]]></surname>
<given-names><![CDATA[Paola Andrea]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Duarte]]></surname>
<given-names><![CDATA[Carolina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sanabria]]></surname>
<given-names><![CDATA[Olga]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Moreno]]></surname>
<given-names><![CDATA[Jaime]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Nacional de Salud Grupo de Microbiología ]]></institution>
<addr-line><![CDATA[Bogotá D.C]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2017</year>
</pub-date>
<volume>37</volume>
<numero>3</numero>
<fpage>390</fpage>
<lpage>396</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-41572017000300390&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-41572017000300390&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-41572017000300390&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Resumen  Introduction:  A total of 192 invasive Streptococcus pneumoniae isolates, from serotypes 11A, 15B/C and 23A (not included in the conjugated vaccines), were collected in Colombia between 1994 and 2014 as part of the activities of the Network surveillance system for the causative agents of pneumonia and meningitis (SIREVA II).  Objective:  To determine the molecular characteristics ofinvasive S. pneumoniaeisolates from serotypes 11A, 15B/C and 23A in Colombia from 1994 to 2014.  Materials and methods:  The molecular characterization of the isolates was carried out through Pulse-Field Gel Electrophoresis (PFGE) and Multilocus Sequence Typing (MLST).  Results:  Serotype 11A showed one clonal group represented by ST62. Serotype 15B/C was composed of three groups associated with Netherlands15B-37 ST199 (28.75%), ST8495 (18.75%), and SLV (Single-Locus Variant) of ST193 (21.25%). Isolates from serotype 23A were gathered in three clonal groups, with70.21% closely related toST42, 17.02% to Colombia23F-ST338, and6.38% to Netherlands15B-37 ST199.  Conclusion:  Clones Colombia23F-ST338 andNetherlands15B-ST199 covered more serotypes than those previously found by other authors, including serotype 23A. These analyses reveal the importance of capsular switching in the spreading of successful clones among non-vaccine serotypes causing invasive pneumococcal disease.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Abstract  Introducción.  En Colombia se recolectaron 192 aislamientos invasivos de Streptococcus pneumoniae de los serotipos 11A, 15B/C y 23A (no incluidos en las vacunas conjugadas) entre 1994 y 2014, como parte de las actividades del Sistema de Redes de Vigilancia de los Agentes Responsables de Neumonías y MeningitisBacterianas (SIREVA II).  Objetivo.  Determinar las características moleculares de aislamientosinvasivos de los serotipos11A, 15B/C y 23A de S. pneumoniae recolectados en Colombia entre 1994 y 2014.  Materiales y métodos.  La caracterización molecular de los aislamientos se hizo medianteelectroforesis en gel de campo pulsado (Pulse-Field Gel Electrophoresis, PFGE) y por tipificación de secuencias multilocus (Multilocus Sequence Typing, MLST).  Resultados.  El serotipo 11A mostró un grupo clonal representadopor el ST62, en tanto que el serotipo15B/C se distribuyó en tres grupos asociados conlos clones Netherlands15B-37 ST199 (28,75 %), ST8495 (18,75 %) y SLV (variante en un solo locus) de ST193 (21,25 %). Los aislamientos con serotipo 23A se agruparon en tres gruposclonales; 70,21 % de ellos estaban estrechamente relacionadoscon elST42, 17,02 % con elColombia23F-ST338, y 6,38 % con el Netherlands15B-37 ST199.  Conclusión.  Los clones Colombia23F-ST338 y Netherlands15B-ST199 encontrados en este estudio abarcaronmás serotipos de los reportados previamente por otros autores, incluido el serotipo23A. Estos análisis revelan laimportancia de la conmutación(switching) capsular en la expansión de clones exitosos entre los serotipos no vacunales como causa de enfermedad invasiva neumocócica.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Vaccines conjugate]]></kwd>
<kwd lng="en"><![CDATA[pneumonia]]></kwd>
<kwd lng="en"><![CDATA[meningitis]]></kwd>
<kwd lng="en"><![CDATA[pneumococcal infections]]></kwd>
<kwd lng="en"><![CDATA[multilocus sequence typing]]></kwd>
<kwd lng="en"><![CDATA[electrophoresis gel pulsed field]]></kwd>
<kwd lng="es"><![CDATA[vacunas conjugadas]]></kwd>
<kwd lng="es"><![CDATA[neumonía]]></kwd>
<kwd lng="es"><![CDATA[meningitis]]></kwd>
<kwd lng="es"><![CDATA[infecciones neumocócicas]]></kwd>
<kwd lng="es"><![CDATA[tipificación de secuencias multilocus]]></kwd>
<kwd lng="es"><![CDATA[electroforesis en gel de campo pulsado]]></kwd>
</kwd-group>
</article-meta>
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