<?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>0034-8376</journal-id>
<journal-title><![CDATA[Revista de investigación clínica]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. invest. clín.]]></abbrev-journal-title>
<issn>0034-8376</issn>
<publisher>
<publisher-name><![CDATA[Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0034-83762025000200055</article-id>
<article-id pub-id-type="doi">10.24875/ric.24000224</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Increased Occupational Exposure to Body Fluids in Healthcare Workers During the COVID-19 Pandemic: A Retrospective study from 2013 to 2022]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Romero-Mora]]></surname>
<given-names><![CDATA[Karla A.]]></given-names>
</name>
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</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gómez-Palacio-Schjetnan]]></surname>
<given-names><![CDATA[María]]></given-names>
</name>
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</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Jiménez-Sánchez]]></surname>
<given-names><![CDATA[Laura L.]]></given-names>
</name>
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</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Alvarado-de la Barrera]]></surname>
<given-names><![CDATA[Claudia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Murakami-Ogasawara]]></surname>
<given-names><![CDATA[Akio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Schulz-Medina]]></surname>
<given-names><![CDATA[Samuel E.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ávila-Ríos]]></surname>
<given-names><![CDATA[Santiago]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas Centro de Investigación en Enfermedades Infecciosas ]]></institution>
<addr-line><![CDATA[ Mexico City]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2025</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2025</year>
</pub-date>
<volume>77</volume>
<numero>2</numero>
<fpage>55</fpage>
<lpage>66</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0034-83762025000200055&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0034-83762025000200055&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0034-83762025000200055&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Background: Healthcare workers (HCWs) are at risk of body fluids' exposure.  Objective: The objective of this study was to study the incidence of occupational body fluid exposures in HCW at a tertiary hospital and largest coronavirus disease 2019 (COVID-19) center in Mexico.  Methods: Data on sociodemographics, exposure factors, and vaccination status were collected from questionnaires of HCWs self-reporting exposures (January 2013-December 2022). Hepatitis B and C virus (HBV and HCV) and human immunodeficiency virus (HIV) serology data were retrieved from the laboratory platform. Descriptive statistics and variable associations were analyzed.  Results: Four hundred and eighty-two exposures occurred, 311 in women (64.5%). Exposure incidence was 19.09/1000 person-years; 80% were percutaneous; and 20% were splashes. Median age of exposed HCWs was 21 years (standard deviation = 9.65). Nurses were the most exposed (n = 172, 35.6%), mainly in patients room (n = 223, 46%). About 40.5% of HCW had protective antibody titers to HBV surface antigen (anti-HBs). Self-reported vaccination status and protective anti-HBs titers had poor concordance (kappa = 0.02). One hundred and ninety-seven HCW required HIV post-exposure prophylaxis (40.8%) with no seroconversions. Exposures were highest in 2020 (78 cases, p = 0.001 vs. all years).  Conclusion: A high proportion of HCW lacked protective anti-HBs titers. Increased occupational exposures during the COVID-19 pandemic underline the need for standard precautions, HBV immunization, staff training, and post-exposure protocols to enhance pandemics preparedness. (REV INVEST CLIN. 2025;77(2):55-66)]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Blood-borne pathogens]]></kwd>
<kwd lng="en"><![CDATA[Body fluids]]></kwd>
<kwd lng="en"><![CDATA[Human immunodeficiency virus]]></kwd>
<kwd lng="en"><![CDATA[Hepatitis B virus]]></kwd>
<kwd lng="en"><![CDATA[Hepatitis C virus]]></kwd>
<kwd lng="en"><![CDATA[Occupational exposure of healthcare personnel]]></kwd>
</kwd-group>
</article-meta>
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<page-range>475-82</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
