Effectiveness of ChAdOx1 nCoV-19 vaccine against SARS-CoV-2 infection during the delta (B.1.617.2) variant surge in India: a test-negative, case-control study and a mechanistic study of post-vaccination immune responses

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Lancet Infectious Diseases
Apr 2022 Volume 22 Number 4p 427-562, e101-e127
https://www.thelancet.com/journals/laninf/issue/current

 

Effectiveness of ChAdOx1 nCoV-19 vaccine against SARS-CoV-2 infection during the delta (B.1.617.2) variant surge in India: a test-negative, case-control study and a mechanistic study of post-vaccination immune responses
Ramachandran Thiruvengadam, et al. on behalf of the Department of Biotechnology India Consortium for COVID-19 research