<?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>1683-9803</journal-id>
<journal-title><![CDATA[Pediatría (Asunción)]]></journal-title>
<abbrev-journal-title><![CDATA[Pediatr. (Asunción)]]></abbrev-journal-title>
<issn>1683-9803</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Paraguaya de Pediatría]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1683-98032026000100023</article-id>
<article-id pub-id-type="doi">10.31698/ped.53012026004</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Seroprevalencia de toxoplasmosis en mujeres en edad fértil de Asunción y área metropolitana del Paraguay]]></article-title>
<article-title xml:lang="en"><![CDATA[Seroprevalence of toxoplasmosis in women of childbearing age in Asunción and the metropolitan area of Paraguay]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González Perrotta]]></surname>
<given-names><![CDATA[Nicolás]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Merlo Faella]]></surname>
<given-names><![CDATA[Oscar]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lovera Moran]]></surname>
<given-names><![CDATA[Irma]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Amarilla Ortíz]]></surname>
<given-names><![CDATA[Sara]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
<xref ref-type="aff" rid="A a"/>
<xref ref-type="aff" rid="A4"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lovera Moran]]></surname>
<given-names><![CDATA[Dolores]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez de Cuéllar]]></surname>
<given-names><![CDATA[Celia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
<xref ref-type="aff" rid="A a"/>
<xref ref-type="aff" rid="A4"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto de Medicina Tropical  ]]></institution>
<addr-line><![CDATA[Asunción ]]></addr-line>
<country>Paraguay</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Católica de Asunción Departamento de Postgrado ]]></institution>
<addr-line><![CDATA[Asunción ]]></addr-line>
<country>Paraguay</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Ministerio de Salud Pública y Bienestar Social XVIII Región Sanitaria ]]></institution>
<addr-line><![CDATA[Asunción ]]></addr-line>
<country>Paraguay</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Nacional de Asunción Facultad de Ciencias Médicas ]]></institution>
<addr-line><![CDATA[San Lorenzo ]]></addr-line>
<country>Paraguay</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2026</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2026</year>
</pub-date>
<volume>53</volume>
<numero>1</numero>
<fpage>23</fpage>
<lpage>30</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_arttext&amp;pid=S1683-98032026000100023&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_abstract&amp;pid=S1683-98032026000100023&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_pdf&amp;pid=S1683-98032026000100023&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción:  La toxoplasmosis es una infección producida por el protozoo Toxoplasma gondii. Representa un riesgo de enfermedad severa en fetos que se contagian durante el embarazo, pudiendo ocasionar lesiones oculares, viscerales o intracraneales, con secuelas graves a largo plazo.  Objetivos:  Conocer la seroprevalencia de toxoplasmosis en mujeres en edad fértil que acudieron a centros de salud públicos de Asunción y el área metropolitana del Paraguay.  Materiales y métodos:  Estudio observacional, retrospectivo, de corte transversal. Se revisaron las bases de datos del laboratorio de la XVIII Región Sanitaria, que abarca 40 Unidades de Salud Familiar, de los hospitales materno-infantiles San Pablo, Trinidad y Loma Pyta, y del Instituto de Medicina Tropical. Se examinaron determinaciones de inmunoglobulinas G (IgG) y M (IgM) de mujeres de 15 a 45 años realizadas entre enero de 2021 y abril de 2023. El dosaje de inmunoglobulinas se realizó mediante métodos de inmunoensayo por quimioluminiscencia (CLIA). La población se estratificó en grupos etarios de 15 a 25, 26 a 35 y 36 a 45 años. Se consideraron inmunes aquellas mujeres con IgG positiva e IgM negativa, y no inmunes aquellas con IgG e IgM negativas.  Resultados:  Se revisaron 28.708 registros de IgG e IgM para toxoplasmosis en el período de estudio, de los cuales 17.330 (60%) presentaban IgG positiva e IgM negativa. Según el rango etario, 7.088 (54%) mujeres de 15 a 25 años, 7.492 (63%) de 26 a 35 años y 2.750 (72%) de 36 a 45 años presentaron inmunidad, observándose un aumento significativo de mujeres inmunes con la edad (p&lt;0,01). Se identificaron 55 (1,9&#8240;) mujeres con IgG negativa e IgM positiva, de las cuales en 27 (1&#8240;) casos se comprobó seroconversión. Además, 849 (3%) mujeres presentaron IgG e IgM positivas.  Conclusión:  La seroprevalencia de toxoplasmosis en mujeres en edad fértil que acuden a centros de salud públicos de Asunción y el área metropolitana del Paraguay es elevada y aumenta con la edad.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Introduction: Toxoplasmosis is an infection caused by the protozoan Toxoplasma gondii. It poses a risk of severe disease in fetuses infected during pregnancy, potentially causing ocular, visceral, or intracranial lesions, with serious long-term sequelae.  Objectives: To determine the seroprevalence of toxoplasmosis in women of childbearing age who attended public health centers in Asunción and the metropolitan area of Paraguay.  Materials and methods: This was a retrospective, cross-sectional and observational study. Databases from the laboratory of the XVIII Health Region, which encompasses 40 Family Health Units, the San Pablo, Trinidad, and Loma Pyta maternal and child hospitals, and the Institute of Tropical Medicine were reviewed. Immunoglobulin G (IgG) and IgM (IgM) levels were measured in women aged 15 to 45 years, between January 2021 and April 2023. Immunoglobulin levels were measured using chemiluminescent immunoassay (CLIA). The population was stratified into age groups of 15 to 25, 26 to 35, and 36 to 45 years. Women with positive IgG and negative IgM were considered immune, while those with negative IgG and IgM were considered non-immune.  Results: 28,708 IgG and IgM records for toxoplasmosis were reviewed during the study period, of which 17,330 (60%) showed positive IgG and negative IgM. By age group, 7,088 (54%) women aged 15 to 25 years, 7,492 (63%) aged 26 to 35 years, and 2,750 (72%) aged 36 to 45 years showed immunity, with a significant increase in immune women observed with age (p&lt;0.01). Fifty-five (1.9&#8240;) women with negative IgG and positive IgM were identified, of whom 27 (1&#8240;) showed seroconversion. Additionally, 849 (3%) women had positive IgG and IgM.  Conclusion:  The seroprevalence of toxoplasmosis in women of childbearing age attending public health centers in Asunción and the metropolitan area of Paraguay is high and increases with age.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Seroprevalencia]]></kwd>
<kwd lng="es"><![CDATA[toxoplasmosis]]></kwd>
<kwd lng="es"><![CDATA[mujeres en edad fértil]]></kwd>
<kwd lng="es"><![CDATA[Paraguay]]></kwd>
<kwd lng="es"><![CDATA[salud materna]]></kwd>
<kwd lng="en"><![CDATA[Seroprevalence]]></kwd>
<kwd lng="en"><![CDATA[toxoplasmosis]]></kwd>
<kwd lng="en"><![CDATA[women of childbearing age]]></kwd>
<kwd lng="en"><![CDATA[Paraguay]]></kwd>
<kwd lng="en"><![CDATA[maternal health]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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