@Lujan588 @JHorrn @DrNeilStone @VincentRK @CDCgov Omicron less severe to begin with plus lower vaccine effectiveness ends up being a similar risk of hospitalized (roughly). Other factors include more vaccinated now, wider spread now, etc. Overall many different factors.
@Lujan588@jhorn@DrNeilStone@VincentRK@CDCgov-Omicron一开始病情较轻，加上疫苗有效性较低，最终导致住院的风险相似（大致相同）。其他因素包括现在接种更多疫苗，现在传播更广，等等。总体而言，有许多不同的因素。