As best as I can tell, the timeline of these data is lagging and inconsistent... I believe it's (now) listing UK up to 2020 Week 51, and Bulgaria to 2021 Week

As best as I can tell, the timeline of these data is lagging and inconsistent... I believe it's (now) listing UK up to 2020 Week 51, and Bulgaria to 2021 Week 3. That's a 5 week difference in which Bulgaria was hit pretty hard. We don't see the effect in this data set of the British variant yet.