“Brazilian authorities on Wednesday approved the world’s first single-dose dengue vaccine, which they hailed as a ‘historic’ achievement as cases of the mosquito-borne disease soar globally due to rising temperatures.

Dengue, known for intense flu-like symptoms, crushing fatigue and body aches, reached record global levels in 2024 and researchers have attributed its spread to climate change.

Brazil’s health regulatory agency ANVISA authorized the use of Butantan-DV, developed by the Butantan Institute in São Paulo, for people aged 12 to 59.

Currently, the only dengue vaccine available worldwide is TAK-003, which requires two doses administered three months apart, according to the World Health Organization (WHO).

The single dose, developed after eight years of trials across Brazil, will allow for faster and simpler vaccination campaigns.”

From CTV News.