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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
Al Jazeera English
Al Jazeera