This is quite interesting. My first thought is that booster shots probably just happened to hit the right seasonal point to have such a high correlation in Israel, which are of course points that you brought up. We can see that Palestine seems to be following in a slightly delayed manner as it has previously. Since there is such low vaccine/booster uptake in Palestine, I would think that implies that the boosters are unlikely to be a major driver of the increases, because otherwise we would see a diminished increase in Palestine or no increase at all. As we continue to monitor this data it will be interesting to see if the patterns continue to look similar (just with a delay) or if there is eventually some divergence between Israel/Palestine. It looks to me like the boosters just aren't really having much impact one way or the other.