We've known from the beginning that the IFR was far lower in younger populations than the media claimed.
Scientists exaggerated the IFR because they grossly lowballed their estimates of total infections, and IFR is a direct percentage of deaths versus infections, but credible estimates were between 0.2%-0.5%, with scientists making media appearances often pushing the higher end.
OP's title does not mention that this study excluded old people. So the IFR in this study is not the total IFR, it's only for young people. The total IFR is much higher because IFR skyrockets for people over 70 and keeps going up.
You can estimate the IFR once you notice the pattern. The study measures IFR in 10 year cohorts and when you move to the older cohort, the IFR approximately quintuples.
The IFR in the 60-69 cohort was ~0.5%, so yeah it would skyrocket to 2.5% in the 70-79 group. Of course, the point is moot since the current variant is far less virulent than alpha and because it's so transmissible, the rate of natural immunity is high.
I always thought the IFR was low since we had the example of the Diamond Princess cruise ship with 3700 people, where several super old passengers died, but none of the crew.
We've known from the beginning that the IFR was far lower in younger populations than the media claimed.
Scientists exaggerated the IFR because they grossly lowballed their estimates of total infections, and IFR is a direct percentage of deaths versus infections, but credible estimates were between 0.2%-0.5%, with scientists making media appearances often pushing the higher end.
OP's title does not mention that this study excluded old people. So the IFR in this study is not the total IFR, it's only for young people. The total IFR is much higher because IFR skyrockets for people over 70 and keeps going up.
You can estimate the IFR once you notice the pattern. The study measures IFR in 10 year cohorts and when you move to the older cohort, the IFR approximately quintuples.
The IFR in the 60-69 cohort was ~0.5%, so yeah it would skyrocket to 2.5% in the 70-79 group. Of course, the point is moot since the current variant is far less virulent than alpha and because it's so transmissible, the rate of natural immunity is high.
I always thought the IFR was low since we had the example of the Diamond Princess cruise ship with 3700 people, where several super old passengers died, but none of the crew.