England displayed names of key workers, including nurse practitioner Tom Field, on their training shirts to honour their work in the Covid-19 crisis.
The game between Team Stokes and Team Buttler ended in a draw.
Curran felt unwell on Wednesday night and was instructed to self-isolate in his room.
Surrey man had been feeling unwell.
A total of 10 Pakistan players tested positive for Covid-19.
The Test series is due to get under way on July 30.
The first of England’s three Tests against Pakistan is due to get under way at Lord’s on July 30.
The three Tests will be called the #raisethebat series.
The Windies have arrived for a three-match Test tour in “bio-secure” conditions.
England and West Indies are due to kick-off Test cricket’s return on July 8, with a series played at bio-secure venues.