Paola Mariela Saba VillarroelS. SENRaphaëlle KlittingLaura PezzıGéraldine PiorkowskiNorma Villavicencio SilesSineewanlaya Wichit2026-03-222026-03-22202510.1101/2025.05.19.25327817https://doi.org/10.1101/2025.05.19.25327817https://andeanlibrary.org/handle/123456789/84447Abstract With Aedes aegypti expanding to higher altitudes, dengue virus (DENV) cases soared to record levels in 2024 in Cochabamba, Bolivia (2,558 meters above sea level). Using genome sequencing, we identified at least two distinct clades of DENV-2 genotype II circulating during the outbreak.enOutbreakDengue feverDengue virusVirologyGeographySocioeconomicsBiologypreprint