I have used self catering a lot over the years. A step up from camping
and some places were spotless. Which 1 should expect virus or not. Also, currently if a property is left for 72 hours then the virus won't have anything to jump onto and therefore replicate. So owners should consider a 5 day let cutting out weekends. That gives time for cleaning and airing as well as should the bug be present, the chance for it to expire.
However: years ago when we had a dog and used the same property year in/out, we went in the 2nd year and my dog found a lamb chop bone down the settee
. There was a very patterned carpet so I would throw her supper of dried food across the very large lounge for her to hunt and eat. The 3rd year we went in, she went straight to the Welsh dresser wagging her tail: yep, there were bits of dried dog food under there from our visit 8 months previously
. Needless to say we are still here and that we went elsewhere after
I'm enjoying lockdown - own bed, garden, bath, TV, neighbours ;-).