Climate change has resulted in rising temperatures across the globe. The World Meteorological Organisation found that 2023 was the warmest year on record globally and that temperatures will continue to increase. For Southeast Asia, temperatures have risen to record levels in the last year: Thailand reached 45°C, Laos 42.7°C, Myanmar 44°C, and Singapore 37°C. Rising global temperatures have impacted infectious diseases, giving rise to new diseases such as COVID-19 and SARS, increasing vector-borne, water-borne and food-borne diseases, and contributing to antimicrobial resistance.