According to a report in the Sun newspaper — which the palace has not denied — William told an observer at a function that he chose not to go public with his diagnosis because “there were important things going on, and I didn’t want to worry anyone.”
The Sun noted in its report that the Prince took a seven-day break from calls and video messages from April 9 to April 16.
The Prime Minister being out of action while the virus was circulating in the corridors of power would certainly count as “important things,” but it doesn’t fully explain why the palace would keep this information quiet…