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Junior Member
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引用:
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作者oversky.
https://www.timesofisrael.com/israeli-uk-data-offer-mixed-signals-on-vaccines-potency-against-delta-strain/
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引用:
The Israeli statistics also appeared to paint a picture of protection that gets weaker as months pass after vaccination, due to fading immunity. People vaccinated in January were said to have just 16% protection against infection now, while in those vaccinated in April, effectiveness was at 75%.
Doctors note that such figures may not only reflect time that has passed since vaccination, but also a bias according to which those who vaccinated early were often people with health conditions and who are more prone to infection, such as the elderly.
Davidovitch added: “It’s still excellent, very good in preventing severe cases and death, but less so in preventing transmission. And this is why we can’t rely on vaccinations alone, but also need Green Passes, testing, masks, and the like.”
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又重讀了一次，覺得這三段也很重要。 |