Health
Pfizer vaccine is less effective against delta variants
A study conducted in Israel found that the Pfizer COVID-19 vaccine was slightly less effective against the more infectious delta mutants, but was still effective in preventing serious illness. I already know.
As the Wall Street Journal reportsThe Pfizer vaccine protected 64% of people immunized during the development of the delta variant. This is a sharp drop compared to 94% of those previously shown to protect. However, this shot was still 94% effective in preventing severe illness, a slight decrease from 97% who had not previously experienced severe illness.
Data from this study were collected from June 6 to early July, according to Israeli Ministry of Health officials. According to the Journal, no research data or methodology has been published.
Some health experts have expressed skepticism in Israeli studies, saying that mRNA vaccines such as Pfizer have been shown to provide strong protection against COVID-19 infection.
“When I talk to my Israeli colleagues, 64% of people are really skeptical,” Ashish Jha, dean of the Brown University School of Public Health, wrote on Twitter. “The best data still suggest that mRNA vaccines provide a high degree of protection against infection.”
“And excellent protection against severe illness,” Ja added. “Wait for more data, but for now, if you’re vaccinated, I’m not worried.”
Jha revealed that he did not say that the results of the study were incorrect, but emphasized that most data suggest a high efficacy rate in protection from delta variants, 90%. He pointed out a British study that found it to be effective.
For clarity, don’t say 64% are definitely wrong
However, according to UK data, it is close to 90% for infectious diseases and over 90% for severe illnesses.
As a result, data points that do not match are sometimes displayed.
May turn out to be correct
But now, most of the evidence shows that the vaccine works very well against Delta.
— Ashish K. Jha, MD, MPH (@ashishkjha) July 5, 2021
The Journal states that the results of this study came out because Israel is currently experiencing a slight increase in new cases, experts say that 90% of new cases are likely caused by the delta mutation. discovered. Despite this increase, Israeli case numbers remain low by global standards.
The journal reports that more than 80% of Israel’s adult population is fully vaccinated with two doses of Pfizer vaccine.
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Sources 2/ https://thehill.com/policy/healthcare/public-global-health/561627-pfizer-vaccine-less-effective-against-delta-variant The mention sources can contact us to remove/changing this article |
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