A key focus of a Covid risk assessment is to ensure people who have Covid do not attend your rehearsals. However, an individual can pass the virus on from two days before symptoms show. So even with thorough testing, individuals can inadvertently bring the virus to a rehearsal. If this happens, it is good to have a clear plan of what you will do.
The most important part of this plan will be making sure members tell you know if they do develop symptoms or test positive after a rehearsal.