@dankellyvo @justthefacts85 @Loretta_Torrago No, it doesn't appear to wane completely. 20% is significant but this is 20% occurring in 60-90% of the population, and often in an older, higher risk, portion of the population, so implies substantial protection, but not really close to 100%.
@dankellyvo@justthefact85@Loretta_Torrago不，它似乎没有完全消失。20%是重要的，但这是20%发生在60-90%的人口中，并且通常发生在年龄较大、风险较高的人群中，因此意味着大量的保护，但实际上并不接近100%。