HTLV-1 and blood transfusion.
D017977:Deltaretrovirus; D006800:Deltaretrovirus Infections / Q000635:transmission*; D006801:Humans; D009128:Muscle Spasticity / Q000635:transmission; D009468:Neuromuscular Diseases / Q000635:transmission; D010264:Paraplegia / Q000635:transmission; D065227:Transfusion Reaction; D014329:Tropical Climate