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Updated results on coronavirus vaccination effectiveness


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Several weeks following the publication of the large real-world Covid-19 vaccine effectiveness study by the Clalit Research Institute in Collaboration with Harvard University in the
New England Journal of Medicine (NEJM), additional results focusing on vaccine effectiveness in specific sub-populations have now been published.
While the original publication demonstrated the effectiveness of the Pfizer-BioNTech mRNA vaccine in the general population, outstanding questions remained regarding vaccine effectiveness in specific sub-populations of interest, including the elderly, multi-morbid individuals, and individuals with specific prevalent chronic conditions.
The new study also took place in Israel and evaluated data on approximately 1,400,000 Clalit members, with extended follow-up time compared to the previous study, and additional subpopulations. The advanced methodologies employed meticulous individual matching techniques to enable an as-clean-as-pos ....

United States , Harvard University , Marc Lipsitch , Eldad Kepten , Miguela Hern , Noam Barda , Oren Miron , Marka Katz , Ben Reis , Noa Dagan , Shay Perchik , Clalit Research Institute , Harvard Medical School , Clalit Research Institute In Collaboration , New England Journal , Professor Ran Balicer , Chief Innovation Officer , Boston Children , ஒன்றுபட்டது மாநிலங்களில் , ஹார்வர்ட் பல்கலைக்கழகம் , நோம் பார்தா , ஒரேன் மைரான் , மார்க்கா க்யாட்ஸ் , பென் ரேஸ் , இல்லை தாகந் , ஹார்வர்ட் மருத்துவ பள்ளி ,

Researchers examine effectiveness of Pfizer vaccine against COVID-19


Researchers examine effectiveness of Pfizer vaccine against COVID-19
A major study, conducted in collaboration with researchers from Harvard University, examined data on 600,000 vaccinated individuals in Israel, along with 600,000 matched unvaccinated controls.
Two doses of Pfizer/BioNTech vaccine reduced symptomatic COVID-19 by 94% and severe disease by 92%; Single-dose reduced symptomatic COVID-19 by 57% and severe disease by 62%; Vaccine effectiveness was found to be similar across age groups; B.1.1.7 variant became dominant in Israel during the study period.
The Clalit Research Institute, in collaboration with researchers from Harvard University, analyzed one of the world s largest integrated health record databases to examine the effectiveness of the Pfizer vaccine against COVID-19. ....

United States , Harvard University , Mark Katz , Miguel Hern , Marc Lipsitch , Eldad Kepten , Shai Perchik , Noam Barda , Emily Henderson , Oren Miron , Ben Reis , Noa Dagan , Predictive Medicine Group At Boston Children Hospital , Israel National Expert Advisory Team , Clalit Research Institute , Harvard Medical School , Ran Balicer , Public Health , Boston Children , Harvard Medical , Chief Innovation Officer , National Expert Advisory Team , Communicable Disease Dynamics , Predictive Medicine Group , Clinical Trial , Corona Virus ,

Pfizer-BioNTech shot could help end pandemic, Israel study shows


Pfizer-BioNTech shot could help end pandemic, Israel study shows
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A paramedic prepares a dose of the Pfizer-BioNtech COVID-19 vaccine in Beit Shemesh, Israel, on Monday. | AFP-JIJI
Bloomberg
Feb 25, 2021
Pfizer Inc. and BioNTech SE’s COVID-19 vaccine was overwhelmingly effective against the virus in a study that followed nearly 1.2 million people in Israel, results that public-health experts said show that immunizations could end the pandemic.
Two doses of the vaccine prevented 94% of COVID-19 cases in 596,618 people vaccinated between Dec. 20 and Feb. 1, about one-quarter of whom were over the age of 60, teams from the Clalit Research Institute and Harvard University reported in a study published Wednesday in the New England Journal of Medicine. ....

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