4/n For example, take REACT-2, a massive antibody prevalence study from the UK They found substantially FEWER people had been infected in older age groups than younger onespic.twitter.com/rdCAaRHCao
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14/n That being said, when we look at good quality seroprevalence estimates, in almost all cases after the initial surge it looks like we did in fact protect elderly people (at least to some extent)
15/n Yes, elderly people have died more from COVID-19, but that's an obvious consequence of the age-stratified IFR. If lots of people get infected, lots of old people will be infected by default
16/n I think it is reasonable to say that in most places we HAVE protected the elderly to a great degree, and we have still suffered the consequences when the pandemic got out of control
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