Never occurred to me before, but slabs can be sanitized more easily than coins themselves. Yeah, coins can be dipped in 70% isopropanol without harm, but more of a hassle than applying a sanitizing wipe to a slab. Less valuable, worn raw coins can be wiped, but you're probably not going to do that to your AU CC Morgan dollar. Of course, if you have a gamma irradiator, use it on slabbed or raw coins. Cal
A recently published first study on Coronavirus viability on/in various materials provided this information, IIRC: In air - three hours On copper - 4 hours On cardboard and stainless steel-up to 3 days So, it looks like the early copper collectors have an edge! Seriously, both copper and silver have anti-microbial characteristics but not known anti-viral capability but the slabs they are housed in do not.
Cardboard/Paper was only 24 hours unless they changed it and more importantly there's no evidence yet that anyone has gotten it from packages/mail as basically everyone would have it by now if that was an easily viable transmission route
apparently, yes. Looks like peroxide has more uses than just as a catalyst for vinegar-dating Buffalo nickels!
H2O2 kills a broad range of bugs. It's a predominantly used chemistry for HPV where other chemistry doesn't work as well (ortho-phthalaldehyde). A little digging through the Steris site might bear out if Coronovirus is amongst the claimed bugs killed.