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Slavov SN, Cilião-Alves DC, Gonzaga FAC, Moura DR, de Moura ACAM, de Noronha LAG, Cassemiro ÉM, Pimentel BMS, Costa FJQ, da Silva GA, Ramos DDAR, de Araújo WN, Kashima S, Haddad R. Dengue seroprevalence among asymptomatic blood donors during an epidemic outbreak in Central-West Brazil. PLoS One 2019; 14:e0213793. [PMID: 30908528 PMCID: PMC6433220 DOI: 10.1371/journal.pone.0213793] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Accepted: 02/28/2019] [Indexed: 11/18/2022] Open
Abstract
Dengue virus (DENV) transmission by blood transfusion is an important route of viral acquisition during outbreaks. The prevalence of DENV markers (viral RNA, NS1, anti-DENV IgM, and IgG) among blood donors in Central-West Brazil has never been evaluated. Our aim was to evaluate the full set of serological and molecular markers for DENV among blood donors of the Federal District of Brazil during an extensive outbreak in 2016. We found an anti-DENV IgM prevalence of 6.74% (n = 32/475). Of 475, 20 samples (4.21%) were also anti-DENV IgG positive. All samples were non-reactive for NS1 and DENV RNA. Our results imply that a significant proportion of the tested donors had experienced asymptomatic infection. More studies are necessary to evaluate the real prevalence of DENV viremia in blood donors from the Federal District of Brazil and if specific measures are needed to routinely test the blood donors for DENV RNA during outbreaks.
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Affiliation(s)
- Svetoslav Nanev Slavov
- Blood Center of Ribeirão Preto, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
- Department of Internal Medicine, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | | | - Filipe Almeida Carvalho Gonzaga
- Faculty of Ceilândia, University of Brasilia, Brasilia, Federal District, Brazil
- Center for Tropical Medicine, University of Brasilia, Brasilia, Federal District, Brazil
| | | | | | | | - Évelin Mota Cassemiro
- Faculty of Ceilândia, University of Brasilia, Brasilia, Federal District, Brazil
- Center for Tropical Medicine, University of Brasilia, Brasilia, Federal District, Brazil
| | | | | | - Grasiela Araújo da Silva
- Central Public Health Laboratory of Federal District – LACEN-DF, Brasilia, Federal District, Brazil
| | - Doralina do Amaral Rabello Ramos
- Laboratory of Molecular Pathology of Cancer, Faculty of Health Sciences and Medicine, University of Brasilia, Brasilia, Federal District, Brazil
| | - Wildo Navegantes de Araújo
- Faculty of Ceilândia, University of Brasilia, Brasilia, Federal District, Brazil
- Center for Tropical Medicine, University of Brasilia, Brasilia, Federal District, Brazil
| | - Simone Kashima
- Blood Center of Ribeirão Preto, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
- Department of Clinical, Toxicological and Bromatological Analyses, Faculty of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Rodrigo Haddad
- Faculty of Ceilândia, University of Brasilia, Brasilia, Federal District, Brazil
- Center for Tropical Medicine, University of Brasilia, Brasilia, Federal District, Brazil
- * E-mail:
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