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There was a new, recent study that showed that the mRNA vaccines were still 90% effective among healthcare workers during the big surge in December/January peri

by boc 6y ago

There was a new, recent study that showed that the mRNA vaccines were still 90% effective among healthcare workers during the big surge in December/January period when the variants were certainly present.[1] This doesn't mean the J&J vaccine is bad by any means, but it does show how incredible the new mRNA vaccines have performed. [1] https://www.statnews.com/2021/03/29/real-world-study-by-cdc-shows-pfizer-and-moderna-vaccines-were-90-effective/ https://www.statnews.com/2021/03/29/real-world-study-by-cdc-...

ehsankia 6y ago
From that same study: > The study suggested that even the first dose of vaccine was 80% effective at preventing infection Which is within the error bar of J&J's one dose result in the US (75%). We will have to see the results of the 2-dose J&J trial coming out soon, but I expect that to be around 90% too. It's also worth noting that some places in the world (UK, Canada), have been using 1-dose pfizer regimen to get the most out of their short supply, with possible 2nd shot 3-4 months down the line. Similarly, we could see a delayed J&J booster being given to increase immunity to matching 90%.