WHO expert committee says delaying booster up to six weeks (given supply issues) rather than three is okay (based on existing data) and also says will update recommendations for delay as more data becomes available.https://twitter.com/BogochIsaac/status/1347545566679592960 …
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If both the CDC and WHO - extremely cautious orgs - say 6 weeks is fine if delay is “unavoidable”. Then shouldn’t it be a viable option now? It buys us ~2 weeks of extra first doses immediately. (If we’re willing to cancel and reschedule.) Would do a lot of good.
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I don't think they can reschedule existing ones (complicated) but since I called for *a trial* on all this back in December, I've talked with a large number of immunologists/vaccinologists with varying strong opinions on booster intervals. Not one said three weeks sounds ideal.
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Trial intervals chosen for other reasons. If 3 weeks is “optimal” great. But we should be able to delay by a couple weeks and still get close to optimal. (Not an expert on that but the CDC and WHO seem ok with 6 weeks.)
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It's almost moot point now. Even if we canceled all the second doses and started doing only first doses tomorrow it would probably be too late to make an impact esp.with supply increasing. The time to have done it was January.
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We are getting our first Pfizer shot tomorrow at Walgreens. They automatically scheduled second shot 28 days out.
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Same here, had mine today. I assumed it was Moderna until they gave me the info for Pfizer
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(Yes, we obviously should, as per first tweet in this thread.)