Recently 4 different Plasmodium parasite species have been found to be coexisting in the blood of 12-year-old tribal boy. The species are: P. vivax, P. falciparum, P. malariae, and P. ovale. Mixed infection with two or more Plasmodium parasites are known: vivax + P.
falciparum (19%) falciparum + P. vivax + P. malariae (2.5%) falciparum + P. malariae (1.3%) However, infection with all 4 species has been reported for the first time. The doctors treating the patient have described the case as rare. Source: Hindustan Times What are the complication of mixed-infection malaria?