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July 11, 1896


JAMA. 1896;XXVII(2):100-102. doi:10.1001/jama.1896.02430800042005

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When Laveran in 1881 announced the discovery of a malarial hematozoon which in its full development was as large or larger than a red corpuscle, decorated with pigment granules often arranged in the form of a corona, and provided with flagella which stirred the neighboring blood discs by their oscillations, the medical world was probably more amused with the announcement than impressed with its value. Beside the perfected micro-parasite this French army surgeon described and figured a crescentic or banana shaped form which he considered an imperfect development, and oval or spherical, non-fillamented, degenerative or cadaveric forms, all containing pigment granules loosely scattered or variously aggregated. When it is remembered that Heschl in 1850, and Planer and Frerichs in 1854, described pigment granules in the blood of malarial cases and noted their aggregation in cells or in small masses bound together by a hyaline connective it seems surprising that so

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