Climate change is altering the life cycles of many pathogenic organisms and changing the risk of transmission of vector- and water-borne infectious diseases to humans . The rearrangement and emergence of some diseases are already observed in temperate- zone and high-elevation areas and coastal areas . Shifts in the geographic and seasonal range suitability of pathogens and vectors are related to climatic-impact drivers  , but there are substantial non-climatic drivers  that affect the attribution of the overall impacts on the prevalence or severity of some vector- and water-borne infectious diseases over recent decades . Adaptation options that involve sustained and rapid surveillance systems as well as the preservation and restoration of natural habitats with their associated higher levels of biodiversity, both marine and terrestrial, will be key to reducing the risk of epidemics and the large-scale transmission of diseases .
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report