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Updated: October 16, 2026
It is quite possible that the black disease of the Garo Hills in Assam is due to extreme and acute development of a pernicious form of malaria. In chronic malaria the skin may be yellowish, from a chestnut-brown to a black color, after long exposure to the influence of the fever. Various fungi, such as tinea versicolor and the Mexican "Caraati," may produce discoloration on the skin.