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Venezuelan Equine Encephalitis Virus, Amazonas, Brazil, 2025.

Santana, F. S. d.; Santos, M. F. d.; Souza, V. C. d.; Nascimento, V. A. d.; Santos, M. d. P. S. L. d.; Medina, G. P. H.; Salazar, K. E. L.; Mendez, J. E. S.; Fajardo, E. A. d. S. B.; Oliveira, L. C. B. d.; Costa, D. S. d.; Torres, T. M. O.; Salvador, A. C. M.; Nascimento, S. H. A. d.; Silva, B. O. d.; Oliveira, K. L.; Dantas, H. A. P.; Mejia, M. C.; Nascimento, F. O. d.; Silva, D. S. e.; Brandao, M. J. P.; Muniz, A. B. V.; Almeida, T. A. P. d.; Oliveira, M. A. A. d.; Goncalves, L. M. F.; Ramos, T. C. A.; Martinez-Espinosa, F. E.; Perisse, A. R. S.; Dall'Acqua, D. S. V.; Filippis, A. M. B. d.;

2025-08-21 infectious diseases
10.1101/2025.08.19.25333804 medRxiv
Show abstract

We report the first detection of Venezuelan Equine Encephalitis Virus (VEEV) in residents of Tabatinga, Amazonas, Brazil, a tri-border region with Colombia and Peru. Brazilian and Peruvian sequences clustered together, suggesting potential cross-border transmission. Our findings identify VEEV as an underrecognized etiology of acute febrile illness in the Brazilian Amazon.

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