The burdens of several climate-sensitive food-borne, waterborne, and vector-borne diseases  are projected to increase under climate change, assuming no additional adaptation . The distribution and intensity of transmission of malaria is expected to decrease in some areas and increase in others, with increases projected mainly along the current edges of its geographic distribution in endemic areas of sub-Saharan Africa, Asia and South America . Dengue risk will increase, with a larger spatio-temporal distribution in Asia, Europe and sub-Saharan Africa under RCP6.0 and RCP8.5, potentially putting another 2.25 billion people at risk . Higher incidence rates are projected for Lyme disease in the Northern Hemisphere  and for transmission of Schistosoma mansoni in eastern Africa  .
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report