<?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>0864-0289</journal-id>
<journal-title><![CDATA[Revista Cubana de Hematología, Inmunología y Hemoterapia]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Cubana Hematol Inmunol Hemoter]]></abbrev-journal-title>
<issn>0864-0289</issn>
<publisher>
<publisher-name><![CDATA[Centro Nacional de Información de Ciencias MédicasEditorial Ciencias Médicas]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0864-02892020000100007</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Prevalencia de marcadores del virus de la hepatitis B en donantes de sangre cubanos]]></article-title>
<article-title xml:lang="en"><![CDATA[Prevalence of Hepatitis B virus markers in Cuban blood donors]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Montalvo Villalba]]></surname>
<given-names><![CDATA[María Caridad]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodriguez Lay]]></surname>
<given-names><![CDATA[Licel de los Ángeles]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López Hernández]]></surname>
<given-names><![CDATA[Dayesi]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bello Corredor]]></surname>
<given-names><![CDATA[Marité]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Marrero Sánchez]]></surname>
<given-names><![CDATA[Bárbara Haydee]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez Alvarez]]></surname>
<given-names><![CDATA[María Lourdes]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto de Medicina Tropical Pedro Kourí  ]]></institution>
<addr-line><![CDATA[La Habana ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Centro Provincial de Higiene y Epidemiología de Santa Clara  ]]></institution>
<addr-line><![CDATA[Villa Clara ]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2020</year>
</pub-date>
<volume>36</volume>
<numero>1</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S0864-02892020000100007&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S0864-02892020000100007&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S0864-02892020000100007&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción: La incidencia de la hepatitis B en Cuba se redujo notablemente desde la incorporación de la vacuna cubana Heberbiovac HB.  Objetivo: Determinar la prevalencia de marcadores del virus de la hepatitis B en donantes de sangre de tres provincias y la persistencia de los anticuerpos contra el antígeno de superficie de este virus en donantes nacidos posterior a la introducción de la vacuna cubana en el Programa Nacional de Inmunización.  Métodos: Se aplicó el diseño de un estudio de prevalencia. Se incluyeron 433 donantes que acudieron a los bancos de sangre de las provincias La Habana, Villa Clara y Santiago de Cuba, entre enero y diciembre de 2018. Se detectaron los marcadores HBsAg, anti-HBc y anti-HBs; este último en donantes con edades entre 18 a 26 años. Se realizó la proteína C reactiva (PCR) en tiempo real para identificar la replicación viral en individuos positivos al HBsAgo al anti-HBc.  Resultados: La prevalencia de HBsAg y de anti-HBc fue de 1,15 % (5/433) y 7,85 % (38/433), respectivamente. En los individuos nacidos después de la introducción de la vacuna, la prevalencia de HBsAg y anti-HBc fue 0 % y 0,95 %, respectivamente. El 36,1 9 % (38/105) de estos donantes tenían niveles protectores de anti-HBs (&#8805; 10 UI/L). El ADN viral se detectó en un donante positivo al HBsAg y anti-HBc; no se identificó infección oculta por el virus de la hepatitis B.  Conclusiones: La prevalencia del HBsAg es baja en donantes de sangre cubanos, con tendencia a ser nula en donantes nacidos después de la aplicación de la vacuna cubana Heberbiovac HB.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Introduction: The incidence of hepatitis B in Cuba has decreased significantly since incorporation of Cuban vaccine Heberbiovac HB.  Objective:  To determine the prevalence of hepatitis B virus markers in blood donors from three provinces and the persistence of antibodies against surface antigen of this virus in blood donors born after introduction of Cuban vaccine in the National Immunization Program.  Methods:  The design of a prevalence study was applied. We included 433 donors who attended the blood banks of the provinces of Havana, Villa Clara and Santiago de Cuba, between January and December 2018.The HBsAg, anti-HBc and anti-HBs markers were detected; the latter was detected in donors aged 18-26 years. The real-time analysis of C-reactive protein (CRP) was performed to identify viral replication in individuals positive to HBsAg-positive and to anti-HBc.  Results: The prevalence of HBsAg and anti-HBc was 1.15% (5/433) and 7.85% (38/433), respectively. In individuals born after introduction of the vaccine, the prevalence of HBsAg and anti-HBc was 0% and 0.95%, respectively. 36.19% (38/105) of these donors had protective levels of anti-HBs (&#8805;10UI/L). Viral DNA was detected in a donor positive to HBsAg and to anti-HBc. Hidden infection with the hepatitis B virus was not identified.  Conclusions: The prevalence of HBsAg is low among Cuban blood donors, with a tendency to be null in donors born after application of Cuban vaccine Heberbiovac HB.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[prevalencia]]></kwd>
<kwd lng="es"><![CDATA[virus de la hepatitis B]]></kwd>
<kwd lng="es"><![CDATA[donantes de sangre]]></kwd>
<kwd lng="es"><![CDATA[Heberbiovac HB]]></kwd>
<kwd lng="es"><![CDATA[inmunización]]></kwd>
<kwd lng="en"><![CDATA[prevalence]]></kwd>
<kwd lng="en"><![CDATA[hepatitis B virus]]></kwd>
<kwd lng="en"><![CDATA[blood donors]]></kwd>
<kwd lng="en"><![CDATA[Heberbiovac HB]]></kwd>
<kwd lng="en"><![CDATA[immunization]]></kwd>
</kwd-group>
</article-meta>
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