I have not gone through that study or article in depth yet, but the thing that jumps out at me initially is that it is using seroprevelance data from Battacharia and I am yet to understand how he is so confident in his numbers. All of his surveys from my understanding rely on data gathered from people who came in looking to be tested. Which would obviously taint the randomness as people who think they might have had COVID are much more likely to take the time to come in and be tested.
Also, if his data is to be believed, then the protection offered by having had COVID in the past has been far overstated.
Also, if his data is to be believed, then the protection offered by having had COVID in the past has been far overstated.