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Israeli scientists construct new model to determine optimal strategies for combining Vaccines and Social Distancing against COVID19
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A-t-on encore le droit de questionner la politique vaccinale ?
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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-possible analysis
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.
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