The neuroepidemiology of tropical spastic paraparesis

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Abstract
Recent neuroepidemiological studies of endemic tropical spastic paraparesis (TSP) have confirmed the existence of high-prevalence foci in several tropical islands, including Jamaica and Martinique in the Caribbean, Tumaco off the Pacific coast of Colombia, and the Seychelles in the Indian Ocean. There is a net preponderance of TSP in persons of Black African ancestry, although Caucasian, Hindu, Amerindian, and Orientals have been affected. The epidemiological, clinical, laboratory, and neuropathological features of TSP are reviewed here, as well as the evidence in favor of its retroviral origin.