Wednesday, December 30, 2020

What We Know About AstraZeneca’s Head-Scratching Vaccine Results

 https://www.nytimes.com/2020/11/24/health/astrazeneca-covid-vaccine.html

Surprisingly, the vaccine combination in which the first dose was only at half strength was 90 percent effective at preventing Covid-19 in the trial. In contrast, the combination of two, full-dose shots led to just 62 percent efficacy.

Fewer than 2,800 volunteers got the half-strength initial dose, out of the more than 23,000 participants whose results were reported on Monday. That’s a pretty small number of participants on which to base the spectacular efficacy results — far fewer than in Pfizer’s and Moderna’s trials.

1 comment:

  1. What a shock. God created a complex body full of surprises.

    ReplyDelete

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