Lymphotropic retrovirus in multiple sclerosis

: Several viruses have been considered in the etiology of Multiple Sclerosis (MS), but definitive proof have not been given so far. Recently, Gallo and Koprowski (1985) pointed out the retroviruses. In our study serum anti-HTLV I and anti-HTLV III antibodies were determined in 31 MS patients. Anti-HTLV I antibodies were found in the serum of only three MS patients (9.6%); none of the patients had anti-HTLV III antibodies.