@ChrisHubbard @offdutykat @danielkotzin Booster is about 50% effective, and may eventually drop to zero but it will take a while. That's where we are now (or less) for most people with boosters. Harder to estimate for two doses because it is closer to zero but still may be 10% or so.
@ChrisHubbard@offdutykat@danielkotzin助推器的有效率约为50%，最终可能降至零，但这需要一段时间。对于大多数有助推器的人来说，这就是我们现在（或更少）的处境。很难估计两次剂量，因为它接近于零，但仍可能是10%左右。