González-Elizondo, MauricioSoto, Dihala PicadoLaurent, Estela CorderoMartínez, Francisco DuarteAlcantara, Luiz Carlos JuniorFonseca, VagnerRico, Jairo Andrés MéndezLourenço, JoséFranco, LeticiaGiovanetti, MartaGarita, Claudio Soto2026-01-092026-01-092025-11-01González-Elizondo, M., Soto, D. P., Laurent, E. C., & Martínez, F. D. et al. (2025). Shifting dynamics of Dengue virus serotype 2 and emergence of cosmopolitan genotype, Costa Rica, 2024. Emerging Infectious Diseases, 31(11), 2153-2158. https://doi.org/10.3201/eid3111.2507461080-60408b81a8ed-79c3-479a-8d00-a3831cadd378http://hdl.handle.net/10400.14/56458Dengue remains a major public health challenge. In Costa Rica, we implemented nationwide genomic surveillance to track dengue virus serotype 2 cosmopolitan genotype emergence. Phylogenetic and eco-epidemiologic analyses revealed early detection, climate-driven spread, and spatial heterogeneity. Our findings underscore the need for integrated surveillance to guide adaptive responses to emerging arboviral threats.engresearch article10.3201/eid3111.250746105024738904PMC1270452141379636001641838700012