[manwe150]

Are we looking at the same graph? Vaccinations were well past the inflection point in August in the data you are responding to, so the vaccine affect would have already happened if we make the bad simplifying assumption that the population is homogeneous. But Delta was drastically increasing infections in August, leading to a proportional much smaller increase in vaccination then.

[origin_path]

Well, for me there's no real need to try and divine it from some rough and ready study. I already know that the vaccines drive this because so many of my girlfriend's social groups reported disrupted cycles immediately after taking the shots, and for some the doctors said specifically it seemed to be vaccine caused. Seemed for them actually mostly that the periods vanished, rather than unexpected bleeding.