Infection with human T cell lymphotropic virus type I (HTLV-I) causes multiple neurologic disorder . due to the retroviruses. Spinal cord disease of this type is named TSP (tropical spastic paraparesis) that were drawn to the attention of neurologists 45 years ago. The clinical picture is one of the slowly progressive paraparesis with increased tendon reflexes & Babinski signs ; disor... https://www.roneverhart.com/Turbosound-TS-18SW700-8A-18-Low-Frequency-Loudspeaker-p31480/