"Climate Change Poised to Make Infectious Disease Outbreaks More Frequent"

As climate change caused habitats to shift or disappear for certain species, parasites would simply jump to other species, an observation that challenges conventional thinking that parasites have co-evolved with their hosts and so do not quickly adapt to a new species. “Even though a parasite might have a very specialized relationship with one particular host in one particular place, there are other hosts that may be as susceptible,” Brooks said. The new parasite hosts will not have developed resistance to the species-jumping parasites, and so may be even more susceptible to the infection than the original host species, sparking epidemics more regularly.