The geographic distribution of malaria is determined by several factors. Despite the many variables, scientists believe that the expanding range of malarial mosquitos can be attributed most strongly to changing climate. The other factors come into play as climate change allows malaria to enter areas in which the health infrastructure is not in place to cope with malaria and immunity levels to the parasite are low.

Fortunately, malaria is one problem that can be prevented. For example, malaria has been mostly eradicated in Europe, where it was once common. With the proper treatment and preventative measures, malaria can be controlled in endemic areas. However, developing countries facing economic strain may not have the financial resources to deal with the increasing number of malaria cases.