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6.
PLoS One ; 14(3): e0213793, 2019.
Article in English | MEDLINE | ID: mdl-30908528

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.


Subject(s)
Antibodies, Viral/blood , Asymptomatic Infections/epidemiology , Blood Donors/statistics & numerical data , Dengue Virus/immunology , Dengue/immunology , Disease Outbreaks , Viral Nonstructural Proteins/immunology , Adult , Antibodies, Viral/immunology , Blood Transfusion , Brazil/epidemiology , Cohort Studies , Dengue/blood , Dengue/epidemiology , Dengue/virology , Dengue Virus/genetics , Female , Humans , Immunoglobulin G/immunology , Immunoglobulin M/immunology , Male , Pilot Projects , RNA, Viral/genetics , Seroepidemiologic Studies , Viremia/blood , Viremia/epidemiology , Viremia/immunology , Viremia/virology
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