It’s been a good week for COVID-19 vaccines generally. U.S. Centers for Disease Control, and Food and Drug Administration both lifted their hold on the Johnson vaccine. While Israel’s daily coronavirus deaths bottomed out at zero, after averaging below ten for a month. However, the big news in terms of proof of COVID vaccine efficacy is one dose of Astra Zeneca, or Pfizer cuts the infection rate in all age groups.
Proof of COVID Vaccine Efficacy from Respected Sources
This breaking new evidence is supported by UK Office for National Statistics, and University of Oxford research. Like Israel, Britain is forging head with its vaccination program, and its data base is growing. However, the actual evidence comes from two studies reported by Nuffield University Department of Medicine.
Those two studies we link to below have not been through the peer-review process yet. However, the COVID convention is to share virus news as soon as available. And we should expect there was internal assessment at Nuffield University. In a nut shell, the two studies confirm a sample of 370,000 people all showed some response to Astra Zeneca or Pfizer vaccine.
More about the Data behind This Amazing Good News
The two studies obtained their proof of COVID vaccine efficacy from virus tests on 370,000 people in the general UK population. Three weeks after their first jab, infections with symptoms fell by 74%. While infections with no reported symptoms fell by 57%.
But those who had received their second shot were even better off. Pfizer candidates were 90% less likely to have infections. Unfortunately, the Astra Zeneca information is not available yet, because the vaccine only recently arrived in UK.
There was a better result with both jabs in younger adults compared with older adults over 60. But seniors who had the Pfizer vaccine had high antibody levels. And the second dose had the greatest incremental benefit among people over 80.
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