I agree with brobin, Cell phone, keys, etc are only handled by me, but I do wonder when I receive change. However everything I read says (contrary to the initial reports) that COVID 19 virus does not do well on hard surfaces.
We keep little spray bottles of 91% isopropyl in our pockets and spray our hands frequently when outside, at work, in stores - restaurants, etc. Personally I think the "UV sanitizers" are mostly hype. UV LEDs that TRULY generate mid UV C wavelength at any useful strength are large LEDs that suck a lot of current. I doubt that is what comes in these little AAA powered devices.
$ 0.02.
I get my second dose of Pfizer vaccine next week. Still have cold feet after reading how the Messenger RNA vaccines work. Didn't work anywhere it had been tried before.