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Instituto Evandro Chagas

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Characterization of Triniti virus supports its reclassification in the family Peribunyaviridae.

Lima, Juliana Abreu; Nunes Neto, Joaquim Pinto; Castro, Karoline Silva; Travassos da Rosa, Amélia Paes de Andrade; Tesh, Robert; Nunes, Márcio Roberto Teixeira; Popov, Vsevolod Leonidovich; Vasilakis, Nikos; Guzman, Hilda; Widen, Steven; Silva, Sandro Patroca da; Medeiros, Daniele Barbosa de Almeida; Cardoso, Jedson Ferreira; Martins, Lívia Carício; Azevedo, Raimunda do Socorro da Silva; Vasconcelos, Pedro Fernando da Costa; Chiang, Jannifer Oliveira.
J Gen Virol; 100(2): 137-144, 2019 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-30547856
Triniti virus (TNTV) has been isolated in Trinidad and Tobago and in Brazil. To date little is known about this virus, which is classified as an ungrouped virus within the family Togaviridae. Here, three isolates of TNTV were characterized both genetically and antigenically. The genome was shown to contain three RNA segments: small (S), medium (M) and large (L). Genome organization, protein sizes and protein motifs were similar to those of viruses in the genus Orthobunyavirus, family Peribunyaviridae. Antigenic reactivity revealed the three TNTV isolates to be closely related, but no serologic cross-reaction with other orthobunyaviruses. Morphological observation by transmission electron microscopy indicated that virus size and symmetry were compatible with those of viruses in the family Peribunyaviridae. Our serological, morphological and molecular results support the taxonomic reclassification of TNTV as a member of the genus Orthobunyavirus, family Peribunyaviridae.