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Circulation of DENVs in 16 Asian countries from the 1950s to 2023. DENV envelope sequences, sorted by serotypes and year, were collected from GenBank and ordered according to their country of origin. DENV cases were aggregated for sequences collected prior to 1989 and for those collected between 1990 and 1999. Top panel: Number of DENV cases per year by serotype. Bottom panel: Relative proportions of DENV cases per year by serotype.
