Yellow fever virus resurgence in Sao Paulo State, Brazil, 2024–2025
DOI:
https://doi.org/10.1590/Keywords:
Yellow fever virus, Phylogenetics, SurveillanceAbstract
We report the detection of yellow fever virus in Campinas and Ribeirao Preto city areas (two geographic areas within Sao Paulo State, Brazil) from September 2024 to February 2025. Phylogenetic analysis of six new genomes showed a re-introduction in 2022 from Midwest Brazil followed by persistence in Sao Paulo State. Continued surveillance in neotropical primates is required to prevent cases in humans.
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Copyright (c) 2026 Mariana Sequetin Cunha, Juliana Mariotti Guerra, Márcio Junio Lima Siconelli, Benedito Antonio Lopes da Fonseca, Jessica Caroline de Almeida Dias, Gisele Dias de Freitas, Ester Cerdeira Sabino, Erika Regina Manuli, Geovana Maria Pereira, Ian Nunes Valença, Patrícia Sayuri Silvestre Matsumoto, Nuno Rodrigues Faria, Natália Coelho Couto de Azevedo Fernandes

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
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Fundação de Amparo à Pesquisa do Estado de São Paulo
Grant numbers 2018/14389-0