Biden's Covid-19 symptoms were still mild as of late Thursday night, top White House adviser says
https://edition.cnn.com/2022/07/22/politics/joe-biden-covid/index.html
US and UK don't seem to be care about Covid infection, because Reuter no longer updates covid information.
On the other hand, this article shows White House investigates details about Biden's Covid case like who contracted virus, how his symptom is, and what he does.