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How COVID vaccines work against the Delta variant


Lancet
Alpha
Pfizer-BioNTech
the Pasteur Institute
the Pfizer-BioNTech
Public Health England
AstraZeneca
Delta
The Pfizer-BioNTech
the Gamaleya Center
the Johnson & Johnson
The Pasteur Institute
the Pfizer-BioNTech and Moderna
the University of Geneva’s Institute of Global Health


Jean-François Delfraissy
Antoine Flahault
Johnson
Al Jazeera


British
French
Scottish
Russian
English


Delta

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India
Britain
South Africa
B.1.617.2
UK
France
US

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Positivity     32.00%   
   Negativity   68.00%
The New York Times
SOURCE: http://www.aljazeera.com/news/2021/6/16/how-covid-vaccines-work-against-delta-variant
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Summary

Here is what you need to know about the efficacy of coronavirus vaccines against the variant first identified in India.

As said here by Al Jazeera