title: Multiple sclerosis.
mesh_terms: D000328:Adult; D000818:Animals; D002371:Cat Diseases / Q000635:transmission*; D002415:Cats; D004283:Dog Diseases / Q000635:transmission*; D004285:Dogs; D006561:Herpes Simplex / Q000635:transmission; D006801:Humans; D009103:Multiple Sclerosis / Q000209:etiology*