Depends by how much it goes over, over time resistance from people who have already had it will bring the R number back down.Many reports in Germany suggesting the R number has gone above 1 again. If that's true they're going to have to bring back some lockdown measures. The R number is a difficult to measure though and the actual number of cases being diagnosed hasn't increased yet so we'll just have to keep an eye on that.
No one knows how many people have had it yet.

