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(2021) Nicholas G. Davies et al.   SCIENCE

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(2021) Tjede Funk et al.   Eurosurveillance

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(2021) Erik Volz et al.   NATURE

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(2021) T. Clare et al.   PUBLIC HEALTH

SARS-CoV-2 Delta VOC in Scotland: demographics, risk of hospital admission, and vaccine effectiveness

(2021) Aziz Sheikh et al.   LANCET

SARS-CoV-2 variants of concern are emerging in India

(2021) Jasdeep Singh et al.   NATURE MEDICINE

Effectiveness of Covid-19 Vaccines against the B.1.617.2 (Delta) Variant

(2021) Jamie Lopez Bernal et al.   NEW ENGLAND JOURNAL OF MEDICINE

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(2021) James A. Hay et al.   SCIENCE

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