The actor says the positive tests were a "kick in the gut", but his family have now recovered.
Sleepless is the first indoor theatre show with a full cast to launch since the coronavirus outbreak.
Lockdown delayed the publication of many books, and authors now face big competition to get noticed.
The royal couple say their focus will be on "creating content that informs but also gives hope".
He joined the group in 1976 at the age of 17 only to leave after nine months and one album.
There had been fierce criticism after the lyrics were dropped for The Last Night of the Proms.
He overcame controversy to become one of a handful of architects credited with shaping modern cities.
The musician says being recognised for a song partly inspired by Amy Winehouse is a "huge honour".
The ex-boxer will make Strictly Come Dancing history by becoming the first contestant to be part of a same-sex pairing.
Christopher Nolan's time-bending spy thriller takes £5.33 million in its first week on release.