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The question of whether infection of humans with one species of malaria parasite alters the course of infection with another has been largely ignored because no such interaction was found during studies of induced malaria in patients with neurosyphilis. However, in animal model systems some degree of cross-species interaction is the rule rather than the exception. Furthermore, recent epidemiological observations in Vanuatu in the South Pacific have suggested a biological interaction between the dominant species, Plasmodium vivax, and P. falciparum. Kathryn Maitland, Tom Williams and Chris Newbold here speculate on the basis of these observations and other published findings that infection with P. vivax may result in the development of immunity sufficient to ameliorate the clinical course of subsequent infections with the potentially lethal parasite P. falciparum.


Journal article


Parasitol Today

Publication Date





227 - 231