[theold]

Many scientists disputed that decision then and they continue to do so. Such dissent is bolstered by a series of studies confirming that many people with COVID-19 remain infectious well into the second week after they first experience symptoms. 

Reductions in the length of the recommended isolation period — now common around the world — are driven by politics, they say, rather than any reassuring new data.

https://www.nature.com/articles/d41586-022-02026-x