Explainer | Explained: what is dengue, and why is there a surge in cases in Asia this year?

  • Experts say an outbreak of the mosquito-borne disease in Southeast Asia is the worst in years
  • But trials to breed dengue-resistant mosquitos are raising hopes that the disease could be beaten

A laboratory assistant examines mosquito samples at the Pasteur Institute in the southern Vietnamese city of Nha Trang. Photo: AFP

Dubbed “breakbone fever”, dengue is one of the world’s leading mosquito-borne illnesses and infects as many as 100 million people annually.

About half the planet’s population live in at-risk areas, mainly in Asia, Latin America and Africa.
Print option is available for subscribers only.
SUBSCRIBE NOW
Copyright © 2025 South China Morning Post Publishers Ltd. All rights reserved.