We performed phylogenetic analysis on dengue virus serotype 2 Cosmopolitan genotype in Ho Chi Minh City, Vietnam. We document virus emergence, probable routes of introduction, and timeline of events. Our findings highlight the need for continuous, systematic genomic surveillance to manage outbreaks and forecast future epidemics.
Keywords: DENV serotype 2; Vietnam; arboviruses; climatic factors; dengue virus; mosquito-borne infections; vector-borne infections; viruses.