Vector-borne diseases account for more than 17% of all infectious diseases, leading to over 700,000 deaths annually.  Malaria and dengue remain the most significant public health challenges in the Asia-Pacific region, particularly in tropical and subtropical countries. In 2023, malaria cases totaled 5.7 million across the world, resulting in 9,600 deaths in the region. Despite reduced prevalence, some countries have experienced an increase in caseload, including Thailand, Myanmar, the Philippines, Papua New Guinea, the Republic of Korea, and the Democratic People’s Republic of Korea.  Similarly, dengue has affected 7.6 million people globally, resulting in over 3,000 deaths. Most countries in the region experienced a surge in dengue cases in 2024, including Bangladesh, Nepal, Indonesia, Myanmar, Thailand, Cambodia, China, the Lao People’s Democratic Republic, Malaysia, Singapore, and Vietnam.  

Vector-borne diseases are fueled by insecticide resistance, climate change, migration, and urbanization. The prevention and control of vector-borne diseases face significant challenges in Asia and the Pacific, including limited access to healthcare, limited capacity in vector control, shortages of diagnostic tools and antimalarial supplies, and inadequate community awareness. Fortunately, recent technological advancements offer promise towards improved vector control.  These include artificial intelligence (AI) and digital surveillance, as well as advanced vector control technologies such as genetic modification of mosquitoes, rapid diagnostics biosensors for dengue and malaria, and genetic modification of antimalaria drugs.

The SECURE Webinar Series promotes innovation and best practices to strengthen health security among developing member countries in Southeast Asia (SEA). This series is supported by the ongoing technical assistance on Supporting Enhanced COVID-19 Vaccination and Post-COVID-19 Health Security Response in Southeast Asia (TA 6767-REG), which the Asian Development Bank supports. It serves as a venue for knowledge exchange among governments, the private sector, development partners, civil society networks, and other stakeholders.