UltramicroELISA de captura para la detección de anticuerpos IgG al dengue (UMELISA-DENGUE IgG).

Authors

  • Carmen Acosta Centro de Inmunoensayo
  • Regla Herrera Centro de Inmunoensayo
  • Raquel López Centro de Inmunoensayo
  • Susana Vázquez Instituto de Medicina Tropical “Pedro Kourí”.
  • Guadalupe Guzmán Instituto de Medicina Tropical “Pedro Kourí”.
  • Laura Calderón Instituto Nacional de Salud de Bogotá

Abstract

In this work we report the results of standardization and validation of ultramicroELISA DENGUE IgG(UMELISA DENGUE IgG) for detection of IgG antibodies. With this purpose were studied different conditions for the assay and were chosen as optimal conditions: a concentration anti-IgG (γ) human, 10 μg/mL and conjugate diluted 1:3500. Under these conditions were analyzed 60 paired sera for the detection of specific IgG antibodies against Dengue virus, obtaining 91,11 % of sensitivity. We compared, these samples analyzed by the UMELISA Dengue whit HAI of the Institute of Tropical Medicine “Pedro Kouri” from Cuba, and Institute National of Salud, from Colombia. The IgG capture UMELISA showed good co-rrelation with the HAI assay (r=0,8699, p<0,0001), and IgG level could be used to distinguish between serum paired pri-mary and secondary infection, with 78,6 % of primary infections and 100 % of secondary infections being correctly classified. The agreement of UMELISA Dengue IgG with clinical suspect of dengue infection from Cucuta and Me-dellín, Colombia, with the evaluation with GAC-ELISA from Brazil, and HI remised sera to Institute of Tropical Medicine “Pedro Kourí” were 96,8 %, 97,6 % and 91,7 % respectively.

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Published

2022-02-24

How to Cite

Acosta, C. ., Herrera, R. ., López, R. ., Vázquez, S., Guzmán, G., & Calderón, L. . (2022). UltramicroELISA de captura para la detección de anticuerpos IgG al dengue (UMELISA-DENGUE IgG). NATIONAL CENTER FOR SCIENTIFIC RESEARCH (CENIC) BIOLOGICAL SCIENCES JOURNAL, 34(3). Retrieved from https://revista.cnic.edu.cu/index.php/RevBiol/article/view/1258

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Section

Research articles