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We conducted a retrospective phylogenetic analysis of Mayaro virus (MAYV) detected in French Guiana during 1996-2024. Analysis revealed circulation of MAYV genotype D sublineage 2 and suggested introduction from Brazil and spread to Haiti and Venezuela. Phylogenetic findings support endemic circulation and reinforce the need for MAYV surveillance in the region.
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Lagrave et al. (2026) studied this question.
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