New Data From Israel, UK Shows Mixed Signals On Efficiency Of Pfizer's Vaccine Against Delta StrainPfizer vaccine (Representative image)

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...

Dear Reader,

As you are no doubt aware, Swarajya is a media product that is directly dependent on support from its readers in the form of subscriptions. We do not have the muscle and backing of a large media conglomerate nor are we playing for the large advertisement sweep-stake.

Our business model is you and your subscription. And in challenging times like these, we need your support now more than ever.

We deliver over 10 - 15 high quality articles with expert insights and views. From 7AM in the morning to 10PM late night we operate to ensure you, the reader, get to see what is just right.

Becoming a Patron or a subscriber for as little as Rs 1200/year is the best way you can support our efforts.

Become A Patron
Become A Subscriber