None. Do you know what a precautionary measure is?
Let me ask you: Does he look like someone at deaths door? Is standing up, talking coherently and without shortness of breath, is his capable of talking without coughing?
How is his complexion? alertness?
If you had Corona, and you were able to do all that, would you naturally conclude you had a mild case or a severe case?
Do you remember you made a big point out of "marking" my post before the weekend where I wrote he would be up and about, showing he was in good health during the weekend?