New data from Israel and the UK is showing a contradictory picture on the effectiveness of Pfizer-BioNTech's Covid-19 vaccine in fighting off the Delta variant, the media reported.
A new Health Ministry statistics from Israel indicated that, on average, the Pfizer-BioNTech shot is now just 39 per cent effective against infection, while being only 41 per cent effective in preventing symptomatic Covid-19.
Previously, the Pfizer-BioNTech vaccine was well over 90 per cent effective against infection, reports The Times of Israel.
Meanwhile, a new UK study published this week in The New England Journal of Medicine found the same vaccine to be 88 per cent effective in preventing symptomatic Covid-19 -- more than twice the rate found in the Israeli data.
Israel's research agreed, at least, that the shot was highly effective in avoiding serious illness, at 91.4 per cent effectiveness, the report said.
Some analysts have warned that the figures on vaccine effectiveness are prone to major inaccuracies because of a range of factors, including questions over whether there is accurate data on infection levels among the non-vaccinated, which is vital for such stats.
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 per cent protection against infection now, while in those vaccinated in April, effectiveness was at 75 per cent.
This news has been published via a Syndicated feed. Only the headline is changed.
An appeal from Swarajya
At Swarajya, we rely on our readers' support through subscriptions to sustain our media platform. Unlike larger conglomerates, we are unable to relentlessly chase advertising money — our model is largely built on your patronage.
Your support has never been more crucial. We work tirelessly to deliver 10-15 high-quality articles daily, ensuring you receive insightful content from 7 AM to 10 PM.
If you believe India's story has to be articulated in a way it has never been done before without shrugging it off, become a patron (or) subscribe now for ₹̶2̶4̶0̶0̶ ₹1999 and get 12 print issues, unlimited digital access for 1 year, a special India that is Bharat T-shirt (Offer ends soon).
We are counting on you!