Is there any word on what will happen to the Candidates Tournament 2020 if one of the players tests positive for COVID-19 (coronavirus)? With FIDE moving forward with the Candidates Tournament 2020, in my opinion against better judgment, they have announced what medical screenings will be done, but have they announced what would happen should one of the players test positive for COVID-19 during the tournament?

There were over 400 people at the opening ceremony yesterday, and I think it would be a public relations nightmare if one of the players contracts it.
Yeah, in fact, the tournament has been put on a pause with the current standings, because they are not able to continue: https://www.chess.com/news/view/2020-fide-candidates-tournament-postponed