Genome Characterization and Spaciotemporal Dispersal Analysis of Bagaza Virus Detected in Portugal, 2021

Marta Falcão, Margarida Barros, Margarida D. Duarte, Fábio Abade dos Santos, Teresa Fagulha, Margarida Henriques, Fernanda Ramos, Ana Duarte, Tiago Luís, Ricardo Parreira, Sílvia C. Barros

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Abstract

In September 2021, Bagaza virus (BAGV), a member of the Ntaya group from the Flavivirus genus, was detected for the first time in Portugal, in the heart and the brain of a red-legged partridge found dead in a hunting ground in Serpa (Alentejo region; southern Portugal). Here we report the genomic characterization of the full-length sequence of the BAGV detected (BAGV/PT/2021), including phylogenetic reconstructions and spaciotemporal analyses. Phylogenies inferred from nucleotide sequence alignments, complemented with the analysis of amino acid alignments, indicated that the BAGV strain from Portugal is closely related to BAGV strains previously detected in Spain, suggesting a common ancestor that seems to have arrived in the Iberia Peninsula in the late 1990s to early 2000s. In addition, our findings support previous observations that BAGV and Israel turkey meningoencephalitis virus (ITV) belong to the same viral species.

Original languageEnglish
Article number150
JournalPathogens
Volume12
Issue number2
DOIs
Publication statusPublished - Feb 2023

Keywords

  • Alectoris rufa
  • BAGV
  • Flavivirus
  • genome
  • Israel turkey meningoencephalomyelitis virus (ITV)
  • Ntaya group
  • phylogenetic analysis
  • spaciotemporal analyses

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