Climate change has increased wildlife diseases . Experimental studies provide high confidence in the attribution of observed increased disease severity, outbreak frequency and the emergence of novel vectors and their diseases into new areas to recent trends in climate and extreme events. Many vector-borne diseases and those caused by ticks, helminth worms and the chytrid fungus  have shifted polewards and upwards and are emerging in new regions . In the high Arctic and at high elevations in Nepal, there is high confidence that climate change has driven the expansion of vector-borne diseases  that infect humans. 
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report