I will agree with those numbers if you're including the incubation (presymptomatic) period which is quite long with COVID-19, estimated at 7 days on average.[1]

I will agree with those numbers if you're including the incubation (presymptomatic) period which is quite long with COVID-19, estimated at 7 days on average.[1] Unfortunately that just stresses how little we can accomplish in preventing spread after someone has symptoms. They were already contagious (perhaps 1-4 days) before the onset of symptoms. 10-day isolation periods after infection don't reflect the reality of the virus either, and permanent isolation forever even less so. Like I said, I don't expect anything to change from this new guidance. They have different guidance for healthcare settings and very few people were following the previous general guidance anyway. 1. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9396366/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9396366/