A study of nearly 12,000 households in Denmark shows a marked reduction of Omicron transmission among people who had a 3rd (booster) shot https://www.medrxiv.org/content/10.1101/2021.12.27.21268278v1 …pic.twitter.com/NjQPymxIG7
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There's still a selection bias no?
I don't get Zeynep's point either. But I guess it's difficult to assess behavioural differences between people with 2nd and 3rd. You could claim people with boosters are more cautious, but they could also feel more secure.
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