LingVo.club
📖+10 XP
🎧+10 XP
✅+15 XP
Brazil approves single-dose dengue vaccine (Level A1) — a computer screen with a number of cases on it

Brazil approves single-dose dengue vaccineCEFR A1

3 Dec 2025

LevelA1
A2
B1
B2

Adapted from Rodrigo de Oliveira Andrade, SciDev • CC BY 2.0

Photo by KOBU Agency, Unsplash

Level A1 – Beginner
2 min
76 words
  • Butantan-DV is a dengue vaccine made in Brazil.
  • Anvisa approved it on 26 November.
  • It is for people aged 12 to 59 years.
  • The vaccine needs only one dose to work.
  • One dose can help reach remote Amazon communities.
  • Trials in Brazil had 16,000 volunteers over nearly a decade.
  • The vaccine showed 74.7% overall and 91.6% severe efficacy.
  • More than 1,000,000 doses are ready for distribution.
  • It will join the national programme in early 2026.

Difficult words

  • vaccine — medicine that helps the body avoid disease
  • approved — to say yes to a new medicine
  • dose — small amount of medicine for one time
    doses
  • remote — far away from towns and cities
  • Trials — study to test a medicine or vaccine
  • volunteers — person who joins a study by choice
  • efficacy — how well a medicine or vaccine works

Tip: hover, focus or tap highlighted words in the article to see quick definitions while you read or listen.

Discussion questions

  • Would you take a vaccine that needs one dose?
  • Have you visited a remote area?

Related articles