The same consideration is being given to any potential employees who were in close contact with the infected crew member, as those individuals are all currently in the process of self-isolating.
As of this writing, it’s not clear when The Flash will be deemed safe to return to production.
It does not appear as if anyone from the main cast is at risk, though we can’t be completely sure.
According to Deadline, Warner Bros. TV execs are currently evaluating the situation to grasp the pros and cons of altering the production schedule to get filming back up and running without that particular team member involved.