Personal hand straps can be looped over hand rails to ensure a contactless trip. Quality material is strong and washable for your protection.
tbh this is some of the most genius things invented. like actually! in the future though, hopefully they will make a plastic, leather, or silicone thing to make it easier to wipe down. Or bart can just apply an antimicrobial handrail in the cars. they have em at sfo (door handles)