Chinese strains (Type 7) of JC virus are afro-asiatic in origin but are phylogenetically distinct from the Mongolian and Indian strains (Type 2D) and the Korean and Japanese strains (Type 2A). - Cui X; Wang JC; Deckhut A; Joseph BC; Eberwein P; Cubitt CL; Ryschkewitsch CF; Agostini HT; Stoner GL (Journal of molecular evolution, 2004)