New vaccine aids dengue prevention in Brazil VnExpress Brazil approves the world's first single-dose dengue vaccine, aiming to prevent outbreaks in the nation and its hard-to-reach Amazonian regions.
Dengue fever: no longer a childhood illness VnExpress Health experts warn of a complex shift in dengue fever epidemiology, with a sharp increase in adult cases and severe outcomes, moving away from its previous primary focus on pediatric patients.