<?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>0036-3634</journal-id>
<journal-title><![CDATA[Salud Pública de México]]></journal-title>
<abbrev-journal-title><![CDATA[Salud pública Méx]]></abbrev-journal-title>
<issn>0036-3634</issn>
<publisher>
<publisher-name><![CDATA[Instituto Nacional de Salud Pública]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0036-36342018000100011</article-id>
<article-id pub-id-type="doi">10.21149/8138</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Prevalencia de anticuerpos frente a parotiditis en niños y adolescentes a dos años de haberse introducido la vacuna SRP]]></article-title>
<article-title xml:lang="en"><![CDATA[Antibody prevalence to mumps in children and adolescents at two years of the introduction of the MMR vaccine]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Méndez-Herrera]]></surname>
<given-names><![CDATA[Armando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Arias-Toledo]]></surname>
<given-names><![CDATA[Eloísa]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez-Alemán]]></surname>
<given-names><![CDATA[Miguel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Olamendi-Portugal]]></surname>
<given-names><![CDATA[Ma. Leonidez]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ruiz-Gómez]]></surname>
<given-names><![CDATA[Juan]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Díaz-Ortega]]></surname>
<given-names><![CDATA[José Luis]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Nacional de Salud Pública Centro de Investigación sobre Enfermedades Infecciosas ]]></institution>
<addr-line><![CDATA[Cuernavaca ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>02</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>02</month>
<year>2018</year>
</pub-date>
<volume>60</volume>
<numero>1</numero>
<fpage>71</fpage>
<lpage>76</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0036-36342018000100011&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0036-36342018000100011&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0036-36342018000100011&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen:  Objetivo:  Evaluar la prevalencia de anticuerpos antiparotiditis en niños y adolescentes de México, a dos años de haberse introducido la vacuna SRP.  Material y métodos:  Se estudiaron 2111 niños (1-9 años) y 2484 adolescentes (10-19 años). Se evaluaron anticuerpos IgG con un kit comercial de ELISA indirecto.  Resultados:  La seroprevalencia fue 70.6% (IC95% 69.3-71.9) y resultó mayor en adolescentes (83.0%, IC95% 81.5-84.5) que en niños (56.0%, IC95% 53.9-58.11) (OR 3.83; IC95% 3.34-4.39, p=0.0000000). Los niños de 1 a 2 y de 6 a 9 años, que a partir de 1998 formaron parte del grupo blanco de vacunación vs parotiditis, tuvieron mayor seroprevalencia que el grupo de 3 a 5 años no vacunado.  Conclusiones:  La seropositividad en niños de 1 a 2 y de 6 a 9 años fue probablemente atribuible a vacunación durante 1998-2000 y la de otros grupos etarios a exposición natural relacionada con el tiempo transcurrido en cada cohorte de nacimientos hasta el reclutamiento al estudio.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract:  Objective:  To assess the prevalence of mumps antibodies in children and adolescents of Mexico, two years after the introduction of the mumps-containing vaccine MMR.  Materials and methods:  Evaluation of IgG antibodies with a commercial kit of indirect ELISA.  Results:  2111 children (1-9 years) and 2484 adolescents (10-19 years) were studied. The overall antibody seroprevalence was 70.6% (95% CI 69.3-71.9), being higher in adolescents (83.0%, 95%CI 81.5-84.5) than in children (56.0%, 95%CI: 53.9-58.11) (OR 3.83, 95%CI 3.34-4.39, p=0.0000000). Children 1 to 2 and 6 to 9 years who were part of the target group of mumps vaccination since 1998, they had higher seroprevalence than the group of 3 to 5 years unvaccinated.  Conclusions:  Seropositivity in children aged 1 to 2 and 6 to 9 years was probably attributable to vaccination during 1998-2000 and in other age groups to natural exposure related to time elapsed in each birth cohort until the study recruitment.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[parotiditis]]></kwd>
<kwd lng="es"><![CDATA[seroprevalencia]]></kwd>
<kwd lng="es"><![CDATA[vacunación]]></kwd>
<kwd lng="es"><![CDATA[niños]]></kwd>
<kwd lng="es"><![CDATA[adolescentes]]></kwd>
<kwd lng="en"><![CDATA[mumps]]></kwd>
<kwd lng="en"><![CDATA[seroprevalence]]></kwd>
<kwd lng="en"><![CDATA[vaccination]]></kwd>
<kwd lng="en"><![CDATA[children]]></kwd>
<kwd lng="en"><![CDATA[adolescents]]></kwd>
</kwd-group>
</article-meta>
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