<?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>2176-6223</journal-id>
<journal-title><![CDATA[Revista Pan-Amazônica de Saúde]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Pan-Amaz Saude]]></abbrev-journal-title>
<issn>2176-6223</issn>
<publisher>
<publisher-name><![CDATA[Instituto Evandro Chagas. Secretaria de Vigilância em Saúde e Ambiente. Ministério da Saúde]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2176-62232017000300035</article-id>
<article-id pub-id-type="doi">10.5123/s2176-62232017000300005</article-id>
<title-group>
<article-title xml:lang="pt"><![CDATA[Infecção oculta pelo vírus da hepatite B em comunidade amazônica submetida a intenso fluxo migratório, estado do Pará, Brasil]]></article-title>
<article-title xml:lang="en"><![CDATA[Occult hepatitis B virus infection in an Amazonian community submitted to intense migratory flow, Pará State, Brazil]]></article-title>
<article-title xml:lang="es"><![CDATA[Infección oculta por el virus de la hepatitis B en comunidad amazónica sometida a intenso flujo migratorio, estado de Pará, Brasil]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Nunes]]></surname>
<given-names><![CDATA[Heloisa Marceliano]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Soares]]></surname>
<given-names><![CDATA[Manoel do Carmo Pereira]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sarmento]]></surname>
<given-names><![CDATA[Vânia Pinto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Malheiros]]></surname>
<given-names><![CDATA[Andreza Pinheiro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Nunes]]></surname>
<given-names><![CDATA[Márcio Roberto Teixeira]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Evandro Chagas/SVS/MS Seção de Hepatologia ]]></institution>
<addr-line><![CDATA[Belém Pará]]></addr-line>
<country>Brasil</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Evandro Chagas/SVS/MS Centro de Inovações Tecnológicas ]]></institution>
<addr-line><![CDATA[Ananindeua Pará]]></addr-line>
<country>Brasil</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>8</volume>
<numero>3</numero>
<fpage>35</fpage>
<lpage>49</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.iec.gov.br/scielo.php?script=sci_arttext&amp;pid=S2176-62232017000300035&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.iec.gov.br/scielo.php?script=sci_abstract&amp;pid=S2176-62232017000300035&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.iec.gov.br/scielo.php?script=sci_pdf&amp;pid=S2176-62232017000300035&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="pt"><p><![CDATA[RESUMO  INTRODUÇÃO: A infecção oculta pelo vírus da hepatite B - VHB (IOB) é definida como a presença do VHB-DNA no fígado, que pode ou não ser detectada no soro com HBsAg-, e suas possíveis implicações clínicas.  OBJETIVO: Investigar a ocorrência de IOB na população do município de Juruti, estado do Pará, Brasil, entre fevereiro de 2007 e novembro de 2010.  MATERIAIS E MÉTODOS: Foram avaliadas, por técnicas imunoenzimáticas, amostras de soro de 3.991 indivíduos, e selecionadas as anti-HBc total+ isolado, nas quais foi investigado o VHB-DNA para identificar a presença de IOB.  RESULTADOS: O estudo encontrou 0,5% de portadores, 8,3% com perfil de infecção pregressa, 1,1% com perfil de infecção pregressa ou atual e 33,6% com resposta vacinal, caracterizando o Município como de baixa endemicidade para esse vírus. O VHB-DNA foi detectado em 66,7% das amostras HBsAg+, com carga viral entre &lt; 55 UI/mL e &gt; 38.000 UI/mL; 69,2% dessas amostras apresentaram subgenótipo A1; 15,4%, F2; e 15,4%, F4. Do total examinado, 1,1% eram amostras de indivíduos anti-HBc total+ isolado, cujos testes de biologia molecular revelaram que 9,3% apresentavam VHB-DNA, com carga viral entre &lt; 15 UI/mL e 48 UI/mL.  CONCLUSÃO: Os achados do estudo indicaram a presença de portadores de IOB em 0,1% da população de Juruti. A baixa prevalência de IOB encontrada provavelmente está relacionada à baixa endemicidade do VHB nessa população.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  INTRODUCTION: Occult hepatitis B virus (HBV) infection (OBI) is defined as the presence of HBV DNA in liver, which may or not be detected in the serum with HBsAg-, and its possible clinical implications.  OBJECTIVE: To investigate the OBI occurrence in the population of the municipality of Juruti, Pará State, Brazil, from February 2007 to November 2010.  MATERIALS AND METHODS: Serum samples of 3,991 individuals were evaluated by immunoenzymatic techniques. The ones anti-HBc total+ isolated were selected, and from these the HBV DNA was investigated to identify OBI presence.  RESULTS: In relation to HBV, the study showed 0.5% of carriers, 8.3% with a previous infection profile, 1.1% with a previous or current infection profile, and 33.6% with a vaccine response, characterizing that municipality as low endemicity for this virus. HBV DNA was detected in 66.7% of the HBsAg+ samples, with viral load between &lt; 55 IU/mL and &gt; 38,000 IU/mL; 69.2% of these samples were A1 subgenotype, 15.4% F2, and 15.4% F4. Of the total, 1.1% were samples from individuals anti-HBc total+ isolated whose molecular biology tests showed that 9.3% had HBV DNA, with viral load between &lt; 15 IU/mL and 48 IU/mL.  CONCLUSION: The findings of this study indicated the presence of OBI carriers in 0.1% of the Juruti population. The low prevalence of OBI found is probably related to the low endemicity of HBV in this population.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  INTRODUCCIÓN: La infección oculta por el virus de la hepatitis B - VHB (IOB) se define como la presencia del VHB-ADN en el hígado, que puede o no ser detectada en el suero con HBsAg-, y sus posibles implicaciones clínicas.  OBJETIVO: Investigar brotes de IOB en la población del municipio de Juruti, estado de Pará, Brasil, entre febrero de 2007 y noviembre de 2010.  MATERIALES Y MÉTODOS: Se evaluaron, por técnicas inmunoenzimáticas, muestras de suero de 3991 personas, y seleccionadas las anti-HBc total+ aislado en las que se investigó el VHB-ADN para identificar la presencia de IOB.  RESULTADOS: El estudio encontró 0,5% de portadores, 8,3% con perfil de infección anterior, 1,1% con perfil de infección anterior o actual y 33,6% con respuesta vacunal, caracterizando al Municipio como de baja endemicidad para este virus. El VHB-ADN fue detectado en el 66,7% de las muestras HBsAg+, con carga viral entre &lt; 55 UI/mL y &gt; 38.000 UI/mL; el 69,2% de estas muestras presentaron subgenotipo A1; 15,4%, F2; y 15,4%, F4. Del total examinado, el 1,1% eran muestras de individuos anti-HBc total+ aislado, cuyas pruebas de biología molecular revelaron que un 9,3% presentaba VHB-ADN, con carga viral entre &lt; 15 UI/mL y 48 UI/mL.  CONCLUSIÓN: Los hallazgos del estudio indicaron la presencia de portadores de IOB en 0,1% de la población de Juruti. La baja prevalencia de IOB encontrada está, probablemente, relacionada con la baja endemicidad del VHB en esa población.]]></p></abstract>
<kwd-group>
<kwd lng="pt"><![CDATA[Vírus da Hepatite B]]></kwd>
<kwd lng="pt"><![CDATA[Hepatite Viral Humana]]></kwd>
<kwd lng="pt"><![CDATA[Técnicas de Genotipagem]]></kwd>
<kwd lng="en"><![CDATA[Hepatitis B virus]]></kwd>
<kwd lng="en"><![CDATA[Human Viral Hepatitis]]></kwd>
<kwd lng="en"><![CDATA[Genotyping Techniques]]></kwd>
<kwd lng="es"><![CDATA[Virus de la Hepatitis B]]></kwd>
<kwd lng="es"><![CDATA[Hepatitis Viral Humana]]></kwd>
<kwd lng="es"><![CDATA[Técnicas de Genotipado]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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