3.6 Billion People Worldwide at Risk of Dengue: The Time to Act Is Now

Dengue is no longer a concern limited to tropical countries—it has evolved into a silent global crisis. According to the World Health Organization, approximately 3.6 billion people currently live in areas at risk of dengue virus transmission, representing nearly half of the world’s population.

In an article published by Jornal O Globo, infectious disease specialist Raquel Stucchi explains that “the spread of dengue to regions previously considered free of the disease, such as the United States, is directly linked to the effects of climate change and global warming.” Rising temperatures and shifts in rainfall patterns have created favorable conditions for the proliferation of the Aedes aegypti mosquito across many parts of the globe, significantly expanding high-risk zones.

Globally, dengue continues to surge. As of August 2025, over 4 million cases and more than 2,500 deaths have been reported across 101 countries and territories, spanning the Americas, Europe, Africa, and Asia. The Americas alone account for over 3.5 million suspected cases, with a cumulative incidence of 350 cases per 100,000 population. While some regions have seen a decline compared to previous years, the overall global burden remains high due to underreporting and expanding transmission zones.

Still, Raquel Stucchi notes that “Although the situation is concerning, the global spread of the disease may also drive important advances in public health.” The scale of the problem is mobilizing scientific efforts and government action across various regions—a positive side effect amid a challenging scenario.

Addressing the rise of dengue requires macro-level, collaborative solutions. Companies, especially those with a global reach, play a vital role in this landscape by bringing innovation and sustainability to the fight against Aedes aegypti in diverse regions worldwide.