<prompt> Causative organism of tropical spastic paraparesis is?HIV 1HIV 2HBVHTLV  <response>: Tropical spastic paraparesisTSP is a disease of the spinal cord caused by Human T cell lymphotropic virusHTLV. Alternate names: HTLV associated myelopathy, chronic progressive myelopathy. Paraparesis is a characteristic feature. Other features include uveitis, ahritis, alveolitis, polymyositis, keratoconjunctivitis sicca and infectious dermatitis. 