<?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>1025-028X</journal-id>
<journal-title><![CDATA[Vaccimonitor]]></journal-title>
<abbrev-journal-title><![CDATA[Vaccimonitor]]></abbrev-journal-title>
<issn>1025-028X</issn>
<publisher>
<publisher-name><![CDATA[Finlay Ediciones]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1025-028X2003000100004</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Validación del ensayo Vibriocida colorimétrico para determinar anticuerpos séricos contra cepas candidatas vacunales de Vibrio cholerae]]></article-title>
<article-title xml:lang="en"><![CDATA[Validation of Colorimetric Vibriocidal Assay to Determine Serum Antibodies against Vaccine Candidate Strains of Vibrio Cholerae]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cedré]]></surname>
<given-names><![CDATA[Bárbara]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Viel]]></surname>
<given-names><![CDATA[Yutzandry]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodríguez]]></surname>
<given-names><![CDATA[Tamara]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Año]]></surname>
<given-names><![CDATA[Gemma]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pino]]></surname>
<given-names><![CDATA[Yadira]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García]]></surname>
<given-names><![CDATA[Hilda]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Valmaseda]]></surname>
<given-names><![CDATA[Tania]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González]]></surname>
<given-names><![CDATA[Irma]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Delgado]]></surname>
<given-names><![CDATA[Ileana]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Talavera]]></surname>
<given-names><![CDATA[Arturo]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez]]></surname>
<given-names><![CDATA[José Luis]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García]]></surname>
<given-names><![CDATA[Luis]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Instituto Finlay  ]]></institution>
<addr-line><![CDATA[Ciudad de La Habana ]]></addr-line>
<country>Cuba.</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2003</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2003</year>
</pub-date>
<volume>12</volume>
<numero>1</numero>
<fpage>23</fpage>
<lpage>30</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S1025-028X2003000100004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S1025-028X2003000100004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S1025-028X2003000100004&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[El Instituto Finlay posee un grupo de cepas atenuadas candidatas a vacuna oral contra el cólera, las cuales fueron evaluadas desde el punto de vista de su capacidad inmunogénica mediante la determinación de anticuerpos por el método ELISA y principalmente por el ensayo Vibriocida. Este ensayo mide la funcionalidad de los anticuerpos estimulados por la cepa vacunal, por lo que se considera la herramienta más eficaz para medir el estado de la inmunidad en individuos vacunados contra el cólera y constituye el soporte analítico para el desarrollo de la vacuna anticolérica cubana. En este trabajo se evaluaron la precisión, la especificidad y la robustez del ensayo y los resultados obtenidos estuvieron dentro del criterio de aceptación de esta técnica (>50% de coincidencia). Se demostró que las variaciones entre las muestras negativas y positivas se debían precisamente al crecimiento de V. cholerae y que se pueden incorporar pequeños cambios al ensayo sin que esto traiga consigo variaciones en el título de la muestra ni falsos resultados. De acuerdo con los resultados obtenidos, el mismo se considera apto para la evaluación de la respuesta inmune estimulada por un candidato vacunal contra el cólera.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Finlay Institute possesses a group of attenuated strain candidates for an oral vaccine against cholera. Immunogenicity has been evaluated in volunteers by ELISA antibody determination and mainly by vibriocidal assay. Vibriocidal assay measures the functionality of antibodies elicited by a vaccine strain, that is why it is considered the most efficient tool for determining immunity levels against cholera in vaccines, for which reason, the validation of this test is very important. Precision, specificity and robustness were evaluated in this paper. The results were within the acceptance criteria for this technique (>50% coincidence). It was demonstrated that the differences between positive and negative samples were due precisely to Vibrio cholerae growth and that small changes may be introduced in the test without producing variations in sample titer or false results. According to these results, this test is considered appropriate to evaluate the immune response elicited by vaccine candidates against cholera.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[V. cholerae]]></kwd>
<kwd lng="es"><![CDATA[vacuna anticolérica]]></kwd>
<kwd lng="es"><![CDATA[vibriocida]]></kwd>
<kwd lng="es"><![CDATA[validación]]></kwd>
<kwd lng="en"><![CDATA[Vibriocidal]]></kwd>
<kwd lng="en"><![CDATA[validation]]></kwd>
<kwd lng="en"><![CDATA[precision]]></kwd>
<kwd lng="en"><![CDATA[specificity]]></kwd>
<kwd lng="en"><![CDATA[robustness]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p align="right"><font size="2" face="Verdana"><strong>ARTICULOS ORIGINALES</strong></font></p>     <p align="right">&nbsp;</p>     <p align="right"><font size="4" face="Verdana"><strong>Validaci&oacute;n del ensayo Vibriocida colorim&eacute;trico para   determinar anticuerpos s&eacute;ricos contra cepas candidatas   vacunales de Vibrio cholerae.</strong></font></p>     <p align="left">&nbsp;</p>     <p align="right">&nbsp;</p>     <p align="right"><strong><font size="3" face="Verdana">Validation of Colorimetric Vibriocidal Assay to Determine Serum Antibodies against Vaccine   Candidate Strains of Vibrio Cholerae</font><font size="3">.</font></strong></p>     <p align="left"><font size="2" face="Verdana"><br />   </font></p>     <p align="left"><font size="2" face="Verdana"><strong>B&aacute;rbara Cedr&eacute;, Yutzandry Viel, Tamara Rodr&iacute;guez, Gemma A&ntilde;o, Yadira Pino, Hilda Garc&iacute;a, Tania   Valmaseda, Irma Gonz&aacute;lez, Ileana Delgado, Arturo Talavera, Jos&eacute; Luis P&eacute;rez, Luis Garc&iacute;a.</strong></font></p>     <p align="left"><font size="2" face="Verdana"><br />  Instituto Finlay. Centro de Investigaci&oacute;n-Producci&oacute;n de Vacunas y Sueros. Ciudad de La Habana, Cuba.   E-mail: <a href="emailto:bcedre@finlay.edu.cu">bcedre@finlay.edu.cu</a><br />  </font></p> <hr />     <p align="justify"><font size="2" face="Verdana"><strong>RESUMEN</strong></font></p>     ]]></body>
<body><![CDATA[<p align="justify"><font size="2" face="Verdana">El Instituto Finlay posee un grupo de cepas atenuadas candidatas a vacuna oral contra el c&oacute;lera, las cuales   fueron evaluadas desde el punto de vista de su capacidad inmunog&eacute;nica mediante la determinaci&oacute;n de   anticuerpos por el m&eacute;todo ELISA y principalmente por el ensayo Vibriocida. Este ensayo mide la   funcionalidad de los anticuerpos estimulados por la cepa vacunal, por lo que se considera la herramienta   m&aacute;s eficaz para medir el estado de la inmunidad en individuos vacunados contra el c&oacute;lera y constituye el   soporte anal&iacute;tico para el desarrollo de la vacuna anticol&eacute;rica cubana. En este trabajo se evaluaron la   precisi&oacute;n, la especificidad y la robustez del ensayo y los resultados obtenidos estuvieron dentro del criterio   de aceptaci&oacute;n de esta t&eacute;cnica (&gt;50% de coincidencia). Se demostr&oacute; que las variaciones entre las muestras   negativas y positivas se deb&iacute;an precisamente al crecimiento de V. cholerae y que se pueden incorporar   peque&ntilde;os cambios al ensayo sin que esto traiga consigo variaciones en el t&iacute;tulo de la muestra ni falsos resultados. De acuerdo con los resultados obtenidos, el mismo se considera apto para la evaluaci&oacute;n de la   respuesta inmune estimulada por un candidato vacunal contra el c&oacute;lera.</font></p>     <p align="left"><font size="2" face="Verdana"><br />   <strong>Palabras claves:</strong> V. cholerae, vacuna anticol&eacute;rica, vibriocida, validaci&oacute;n.</font></p> <hr />     <p align="left"><font size="2" face="Verdana"><strong>ABSTRACT</strong></font></p>     <p align="justify"><font size="2" face="Verdana"> Finlay Institute possesses a group of attenuated strain candidates for an oral vaccine against cholera.  Immunogenicity has been evaluated in volunteers by ELISA antibody determination and mainly by vibriocidal assay.  Vibriocidal assay measures the functionality of antibodies elicited by a vaccine strain, that is why it is considered   the most efficient tool for determining immunity levels against cholera in vaccines, for which reason, the validation   of this test is very important. Precision, specificity and robustness were evaluated in this paper. The results were   within the acceptance criteria for this technique (&gt;50% coincidence). It was demonstrated that the differences   between positive and negative samples were due precisely to Vibrio cholerae growth and that small changes may   be introduced in the test without producing variations in sample titer or false results. According to these results, this test is considered appropriate to evaluate the immune response elicited by vaccine candidates against cholera.</font></p>     <p align="left"><font size="2" face="Verdana"><br />   <strong>Keywords:</strong> Vibriocidal, validation, precision, specificity, robustness</font></p> <hr />     <p align="left"><font size="2" face="Verdana, Arial, Helvetica, sans-serif">Texto completo formato PDF </font></p>     <p align="justify" class="Estilo4 Estilo15"><font size="2" face="Verdana, Arial, Helvetica, sans-serif"><strong>REFERENCIAS</strong></font></p>     <!-- ref --><p  align="justify"><font size="2" face="Verdana, Arial, Helvetica, sans-serif">1. Benenson AS, Saad A., Mosley WH. Serological studies in cholera, Serum toxin neutralization -rise in the titre in response to infection with Vibrio cholerae, and the level in the &quot;normal&quot; population in East Pakistan. Bull. WHO. 1968; 38:287-295. </font><!-- ref --><p align="justify"><font size="2" face="Verdana, Arial, Helvetica, sans-serif">2. Hunt, MD, Woodword WE, Keswick BH, Dupont HL. Seroepidemiology of cholera in gulf coastal Texas. Applied and Environmental Microbiology. 1988; 54(7):1673-1677. </font><!-- ref --><p align="justify"><font size="2" face="Verdana, Arial, Helvetica, sans-serif">3. Cedr&eacute; B, Garc&iacute;a H, Garc&iacute;a L, Talavera A. Estandarizaci&oacute;n y Evaluaci&oacute;n del Ensayo Vibriocida modificado. Rev. Cub.Med. Trop. 1999; 51(3):156-159. </font><!-- ref --><p align="justify"><font size="2" face="Verdana, Arial, Helvetica, sans-serif">4. OMS. Gu&iacute;a de la OMS sobre los requisitos de las pr&aacute;cticas adecuadas de fabricaci&oacute;n (PAF): Validaci&oacute;n. Programa mundial de vacunas e inmunizaci&oacute;n. Suministro y calidad de las vacunas. Red mundial de capacitaci&oacute;n.1998. </font><!-- ref --><p align="justify"><font size="2" face="Verdana, Arial, Helvetica, sans-serif">5. CDC/NCID.OPS. Detecci&oacute;n de anticuerpos contra Vibrio cholerae 01 y contra la toxina de c&oacute;lera en los pacientes. M&eacute;todos de laboratorio para el diagn&oacute;stico de Vibrio cholerae. Washington, DC.; Estados Unidos. 1994. </font><!-- ref --><p align="justify"><font size="2" face="Verdana, Arial, Helvetica, sans-serif">6. Gangarosa EJ, De Witt W E, Feely JC, Adams MR. Significance of vibriocidal antibodies with regard to immunity to cholera. Journal of Infections Diseases. 1970; 121:36-41. </font><!-- ref --><p align="justify"><font size="2" face="Verdana, Arial, Helvetica, sans-serif">7. Glass RI, Holmgren J, Haley CE. Predisposition for cholera of individual with O blood group. Am Jour of Epidem. 1985.121:791.</font><!-- ref --><p  align="justify"><font size="2" face="Verdana, Arial, Helvetica, sans-serif">8. Faruque A, Mahalanabis D, Hoque SS, Albert MJ. The relationship between ABO blood groups and susceptibility to diarrhoea due to Vibrio cholerae 0139. Clin. Infect. Dis. 1994; 18:827-8. </font><!-- ref --><p align="justify"><font size="2" face="Verdana, Arial, Helvetica, sans-serif">9. Gotuzzo E, Cieza J. Cholera. Clin North Am. 1994; 8:183-205 </font><!-- ref --><p align="justify"><font size="2" face="Verdana, Arial, Helvetica, sans-serif">10. Attridge RS, Joansson C, Trach DD, Quadri F, Svennerholm AM. Sensitive microplate assay for detection of bactericidal antibodies to V. cholerae O139. Clinical and diagnostic laboratory immunology. American Society for Microbiology. 2002; 383-387. </font><!-- ref --><p align="justify"><font size="2" face="Verdana, Arial, Helvetica, sans-serif">11. Neoh SH, Rowlry D. The antigens of Vibrio cholera involved in the vibriocidal activity of antibody and complement. J. Infect. Dis. 1970; 121(5):505-512. </font><p align="left"><font size="2" face="Verdana"><br /> </font></p>      ]]></body><back>
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