IgG antibodies to dengue in dry blood samples in filter paper

Authors

  • Carmen Acosta Centro de Inmunoensayo
  • Regla Herrera Centro de Inmunoensayo
  • Pedro Almenarez Centro de Inmunoensayo
  • Susana Vázquez Instituto de Medicina Tropical "Pedro Kouri".

Abstract

This paper presents a standardized procedure for the detection of IgG antibodies to dengue virus in blood samples taken from filter paper. The samples were obtained from 216 blood donor persons, 25 of them had IH titer superior of 1:40. All the samples were tested for IgG antibody against dengue virus by means of capture enzyme immunoassay (UMELISA). In a comparison of the results when the elution was perform 30 min. and 1 hour the agreement between the results of the test and those of the UMELISA using serum samples were 93 y 100 % respectively. In both conditions the incubation of the samples in the reaction plate, were 1 hour at 37 º C and 1 hour room temperature, the agreement were 100 %, the same method was employed with, the serum samples (one hour a 37 º C). When we analyzed all samples the result of the sensitivity and specificity were 100 % when the samples were collected in whole blood on filter paper stored at room temperature and when it was stored a 4 º C, for one month and 4 months respectively. The authors recommend the use of this method in the dengue IgG antibody determination is recom-mended.

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Published

2022-02-24

How to Cite

Acosta, C. ., Herrera, R. ., Almenarez, P. ., & Vázquez, S. . (2022). IgG antibodies to dengue in dry blood samples in filter paper. NATIONAL CENTER FOR SCIENTIFIC RESEARCH (CENIC) BIOLOGICAL SCIENCES JOURNAL, 34(3). Retrieved from https://revista.cnic.edu.cu/index.php/RevBiol/article/view/1257

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Section

Research articles