Molecular epidemiology of Western equine encephalitis virus in Brazil, 2023-2024

  1. Aline Scarpellini Campos
  2. Ana Claudia Franco
  3. Fernanda Godinho
  4. Rosana Huff
  5. Jader da Cruz Cardoso
  6. Paola Morais
  7. Carolina Franceschin
  8. Thales de Lima Bermann
  9. Franciellen Machado dos Santos
  10. Milena Bauermann
  11. Taina Machado Selayaran
  12. Amanda Pellenz Ruivo
  13. Cristiane Santin
  14. Juciane Bonella
  15. Carla Rodenbusch
  16. Jose Carlos Ferreira
  17. Scott C Weaver
  18. Vilar Ricardo Gewehr
  19. Gabriel Luz Wallau
  20. William M. de Souza
  21. Richard Steiner Salvato
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Abstract

During the ongoing western equine encephalitis virus (WEEV) outbreak in South America, we described three fatal cases in horses from Rio Grande do Sul, Brazil. We sequenced WEEV strains and identified a novel lineage causing these cases. Continued surveillance and horse immunization are needed to mitigate the WEEV burden.

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  1. Version published to 10.1101/2024.04.15.24305848v1 on medRxiv