Dengue diagnosis in an endemic area of Peru: Clinical characteristics and positive frequencies by RT-PCR and serology for NS1, IgM, and IgG

This work was supported by Cienciativa of CONCYTEC Peru, under contract number 164-2016-FONDECYT, and the Programa Nacional de Innovación para la Competitividad y Productividad (Innóvate Perú), under contract number 116-PNICP-PIAP-2015. === Background: Huánuco is a central eastern region of Peru wh...

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Main Authors: Palomares-Reyes, Carlos, Silva-Caso, Wilmer, del Valle, Luis J., Aguilar-Luis, Miguel Angel, Weilg, Claudia, Martins-Luna, Johanna, Viñas-Ospino, Adriana, Stimmler, Luciana, Mallqui Espinoza, Naysha, Aquino Ortega, Ronald, Espinoza Espíritu, Walter, Misaico, Erika, del Valle-Mendoza, Juana
Other Authors: juana.delvalle@upc.pe
Format: Article
Language:English
Published: Elsevier B.V. 2019
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Online Access:http://hdl.handle.net/10757/625181
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Summary:This work was supported by Cienciativa of CONCYTEC Peru, under contract number 164-2016-FONDECYT, and the Programa Nacional de Innovación para la Competitividad y Productividad (Innóvate Perú), under contract number 116-PNICP-PIAP-2015. === Background: Huánuco is a central eastern region of Peru whose geography includes high forest and low jungle, as well as a mountain range that constitutes the inter-Andean valleys. It is considered a region endemic for dengue due to the many favorable conditions that facilitate transmission of the virus. Methods: A total of 268 serum samples from patients in Huánuco, Peru with an acute febrile illness were assessed for the presence of dengue virus (DENV) via RT-PCR and NS1, IgM, and IgG ELISA during December 2015 and March 2016. Results: DENV was detected in 25% of samples via RT-PCR, 19% of samples by NS1 antigen ELISA, and 10.5% of samples by IgM ELISA. DENV IgG was detected in 15.7% of samples by ELISA. The most frequent symptoms associated with fever across all groups were headache, myalgia, and arthralgia, with no significant difference between the four test methods Conclusions: In this study, DENV was identified in up to 25% of the samples using the standard laboratory method. In addition, a correlation was established between the frequency of positive results and the serological tests that determine NS1, IgM, and IgG. There is an increasing need for point-of-care tests to strengthen epidemiological surveillance in Peru. === Revisión por pares === Revisión por pares