Absence of good animal models for testing of human malaria vaccines, the difficulties in assessment of efficacy of the vaccine in endemic areas, and the absence of understanding of the immunosuppressive mechanisms of the parasite are the foremost reasons for the failure of an effective vaccine. The use of murine models to demonstrate robust protection has failed to stand true in most human trials. One of the possible reasons for the same is because we use unnatural rodent hosts, and not the natural host (tree shrews) of the murine malaria.