1880kii, isaga oo ka shaqeynaya isbitaalka militariga ee Constantine, Algeria, wuxuu ogaaday in cudurka duumadu uu yahay protozoan, kadib markii uu arkay dulinada ku jirta dhiigga bukaanka uu u dhintay duumada. Wuxuu ogaaday in noolaha keena uu yahay protozoan oo uu ugu magac daray Oscillaria malariae, laakiin markii dambe loo beddelay Plasmodium. Tani waxay ahayd markii ugu horreysay ee protozoa la muujiyo inay yihiin sababaha cudur kasta.
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