<?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>1029-3043</journal-id>
<journal-title><![CDATA[Medicentro Electrónica]]></journal-title>
<abbrev-journal-title><![CDATA[Medicentro Electrónica]]></abbrev-journal-title>
<issn>1029-3043</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Ciencias Médicas de Villa Clara]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1029-30432023000300014</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Negativización de carga viral en pacientes positivos persistentes SARS-CoV-2 y uso de plasma de convalecientes]]></article-title>
<article-title xml:lang="en"><![CDATA[Negative viral load in persistent positive SARS-CoV-2 patients and use of convalescent plasma]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez Ojeda]]></surname>
<given-names><![CDATA[Yoan]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Jiménez López]]></surname>
<given-names><![CDATA[Mildrey]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Benítez Pérez]]></surname>
<given-names><![CDATA[María Obdulia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital Militar Manuel Fajardo Rivero  ]]></institution>
<addr-line><![CDATA[Santa Clara Villa Clara]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2023</year>
</pub-date>
<volume>27</volume>
<numero>3</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S1029-30432023000300014&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S1029-30432023000300014&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S1029-30432023000300014&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN No existe medicación específica contra el SARS-CoV-2 y el tratamiento consiste fundamentalmente en medidas de soporte. La transfusión de plasma de convalecientes consiste en administrar pasivamente anticuerpos policlonales, que generan una respuesta inmune inmediata y disminuyen la carga viral. El objetivo del estudio fue describir la estadía hospitalaria y negativización de reacción en cadena de la polimerasa en tiempo real en pacientes positivos persistentes con el uso de plasma de convalecientes. Se realizó un estudio descriptivo transversal, prospectivo, en 8 pacientes positivos persistentes que recibieron dicho plasma, en el Hospital Universitario Clínico Quirúrgico «Cmdte. Manuel Fajardo» de septiembre a noviembre de 2020. El mayor por ciento de casos necesitó una dosis de plasma de convalecientes para negativizar el PCR-TR. La estadía hospitalaria más frecuente fue de 14 a 19 días, el 62,50 % de los pacientes, 24 horas después de administrada la última dosis de este plasma, negativizó el RCP-TR evolutivo.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT There is no specific medication against SARS-CoV-2 and the treatment consists mainly of supportive measures. Convalescent plasma transfusion consists of passively administered polyclonal antibodies, which generate an immediate immune response and decrease viral load. The objective of the study was to describe hospital stay and real-time polymerase chain reaction negativization in persistently positive patients with the use of convalescent plasma. A prospective, cross-sectional and descriptive study was carried out in 8 persistently positive patients who received such plasma at "Cmdte. Manuel Fajardo" Clinical and Surgical University Hospital from September to November 2020. The highest percentage of cases required a dose of convalescent plasma to make the RT-PCR negative. The most frequent hospital stay was from 14 to 19 days; 62.50% of the patients had a negative evolutionary RT-PCR, 24 hours after administering the last dose of this plasma.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[sueroterapia para COVID-19]]></kwd>
<kwd lng="es"><![CDATA[SARS-CoV-2]]></kwd>
<kwd lng="es"><![CDATA[reacción en cadena de la polimerasa]]></kwd>
<kwd lng="en"><![CDATA[COVID-19 serotherapy]]></kwd>
<kwd lng="en"><![CDATA[SARS-CoV-2]]></kwd>
<kwd lng="en"><![CDATA[polymerase chain reaction]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<label>1</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Platero-Portillo]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Lloclla-Delgado]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Guevara-Rodríguez]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Terapia de plasma convaleciente para pacientes con covid-19: revisión de la literatura]]></article-title>
<source><![CDATA[Rev Fac Med Hum]]></source>
<year>2020</year>
<volume>20</volume>
<numero>4</numero>
<issue>4</issue>
</nlm-citation>
</ref>
<ref id="B2">
<label>2</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jianghong]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Xuejiao]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Tongyang]]></surname>
<given-names><![CDATA[X]]></given-names>
</name>
<name>
<surname><![CDATA[Shen]]></surname>
<given-names><![CDATA[Q]]></given-names>
</name>
<name>
<surname><![CDATA[Jing]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
<name>
<surname><![CDATA[Haocheng]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Clinical characteristics of recovered COVID-19 patients with re-detectable positive RNA test]]></article-title>
<source><![CDATA[Ann Transl Med]]></source>
<year>2020</year>
<volume>8</volume>
<numero>17</numero>
<issue>17</issue>
</nlm-citation>
</ref>
<ref id="B3">
<label>3</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gombar]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Chang]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Hagan]]></surname>
<given-names><![CDATA[CA]]></given-names>
</name>
<name>
<surname><![CDATA[Zehnder]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Boyd]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Persistent detection of SARS-CoV-2 RNA in patients and healthcare workers with COVID-19]]></article-title>
<source><![CDATA[J Clin Virol]]></source>
<year>2020</year>
<volume>129</volume>
</nlm-citation>
</ref>
<ref id="B4">
<label>4</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ikegami]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Benirschke]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Flanagan]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Tanna]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Klein]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Elue]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Persistence of SARS-CoV-2 nasopharyngeal swab PCR positivity in COVID-19 convalescent plasma donors]]></article-title>
<source><![CDATA[Transfusion]]></source>
<year>2020</year>
<volume>60</volume>
</nlm-citation>
</ref>
<ref id="B5">
<label>5</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Osman]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Al Daajani]]></surname>
<given-names><![CDATA[MM]]></given-names>
</name>
<name>
<surname><![CDATA[Alsahafi]]></surname>
<given-names><![CDATA[AJ]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Re-positive coronavirus disease 2019 PCR test: could it be a reinfection?]]></article-title>
<source><![CDATA[New Micr New Infect]]></source>
<year>2020</year>
<volume>37</volume>
</nlm-citation>
</ref>
<ref id="B6">
<label>6</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Yahav]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Yelin]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Eckerle]]></surname>
<given-names><![CDATA[I]]></given-names>
</name>
<name>
<surname><![CDATA[Eberhardt]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Wang]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Definitions for coronavirus disease 2019 reinfection, relapse and PCR re-positivity]]></article-title>
<source><![CDATA[Clinical Microbiol Infect]]></source>
<year>2021</year>
<volume>27</volume>
</nlm-citation>
</ref>
<ref id="B7">
<label>7</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bloch]]></surname>
<given-names><![CDATA[EM]]></given-names>
</name>
<name>
<surname><![CDATA[Shoham]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Casadevall]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Sachais]]></surname>
<given-names><![CDATA[BS]]></given-names>
</name>
<name>
<surname><![CDATA[Shaz]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Deployment of convalescent plasma for the prevention and treatment of COVID-19]]></article-title>
<source><![CDATA[J Clin Invest]]></source>
<year>2020</year>
<volume>130</volume>
<numero>6</numero>
<issue>6</issue>
</nlm-citation>
</ref>
<ref id="B8">
<label>8</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Valentini]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Fernández]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Riveros]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Pálizas]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Solimano]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Saúl]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Plasma De Convalecientes Como Terapia Para La Neumonía Por Covid-19 Grave]]></article-title>
<source><![CDATA[Medicina]]></source>
<year>2020</year>
<volume>80</volume>
<numero>Supl. 6</numero>
<issue>Supl. 6</issue>
</nlm-citation>
</ref>
<ref id="B9">
<label>9</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nadal Llovera]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Cols Jiménez]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<source><![CDATA[Estado actual de los tratamientos para la COVID-19]]></source>
<year>2020</year>
<publisher-loc><![CDATA[España ]]></publisher-loc>
<publisher-name><![CDATA[Elsevier]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B10">
<label>10</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ye]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Fu]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Ren]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
<name>
<surname><![CDATA[Wang]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Wang]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Treatment with convalescent plasma for COVID-19 patients in Wuhan, China]]></article-title>
<source><![CDATA[J Med Virol]]></source>
<year>2020</year>
<volume>92</volume>
</nlm-citation>
</ref>
</ref-list>
</back>
</article>
