Why is it so tough to make an efficient vaccine in opposition to dengue?

Folks with dengue in hospital in Dhaka, Bangladesh, in July

SK Hasan Ali/Alamy

Amid rising dengue outbreaks around the globe, 2023 may become one of many worst years on report for the an infection. The World Well being Group (WHO) has mentioned that dengue poses a pandemic-level menace, with outbreaks being reported within the Americas, Asia and Africa. Regardless of its prevalence and the menace it poses, the existence of various kinds of the virus and the way in which that they provoke immunity or problems imply that creating an efficient vaccine has been notoriously tough. …

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