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Rev. Inst. Med. Trop. Säo Paulo ; 53(6): 321-323, Nov.-Dec. 2011. tab
Article in English | LILACS | ID: lil-608549

ABSTRACT

The natural co-infection with dengue virus can occur in highly endemic areas where different serotypes have been observed for many years. We report here four cases of DENV-3/DENV-4 co-infection detected by serological and molecular tests among 674 patients with acute undifferentiated fever from the tropical medicine reference center of Manaus City, Brazil, between 2005 and 2010. Analysis of the sequences obtained indicated the presence of genotype 3 and 1 for DENV-3 and DENV-4 respectively.


A co-infecção natural com os vírus dengue pode ocorre em áreas altamente endêmicas onde diferentes sorotipos têm sido transmitidos por muitos anos. Relatamos aqui quatro casos de co-infecção com DENV-3/DENV-4 detectados por testes sorológicos e moleculares entre 674 pacientes com febre indiferenciada aguda, atendidos em um centro de medicina tropical de referência da cidade de Manaus, Brasil, entre 2005 e 2010. As análises das sequências obtidas indicaram a presença dos genotipos 3 e 1 para DENV-3 e DENV-4 respectivamente.


Subject(s)
Adult , Aged , Female , Humans , Male , Middle Aged , Coinfection/virology , Dengue Virus , Dengue/virology , Brazil , Dengue Virus/classification , Dengue Virus/genetics , Dengue Virus/immunology , Fluorescent Antibody Technique , Genotype , Reverse Transcriptase Polymerase Chain Reaction , Serotyping
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