Brazil Leads in Global Dengue Surge

In 2023 Brazil reported the highest number of dengue cases globally, reaching 2.9 million, according to the World Health Organization (WHO).

These cases form over half of the 5 million global total. Recently, the WHO highlighted dengue’s spread to previously unaffected countries.

Climate change is an important factor in this increase. It lets the Aedes aegypti mosquito, which spreads dengue, survive in new areas . . .