Projects

Understand and mitigating the influence of extreme weather events on HIV outcomes: A global investigation

The Philippines is at the center of two converging public health crises: a rapidly growing HIV epidemic and escalating climate-related disasters. Between 2010 and 2023, the country recorded a 418% increase in new HIV infections and a 538% rise in AIDS-related deaths, marking one of the fastest-growing HIV epidemics in the Western Pacific region. At the same time, the Philippines is increasingly vulnerable to typhoons, floods, and droughts, which are projected to intensify with climate change. While both crises are urgent, little is known about how extreme weather events directly affect HIV prevention, treatment, and care outcomes.

This research seeks to close that critical knowledge gap by examining the impact of climate emergencies on people living with HIV, with particular attention to vulnerable groups such as men who have sex with men, transgender individuals, and people who inject drugs—who account for the majority of new infections and face unique barriers to care. By investigating how these overlapping challenges shape health outcomes, the study aims to generate evidence for climate-adaptive HIV care strategies and guide policies that protect at-risk populations during environmental crises.