COVID-19 vaccine effectiveness against hospitalisation and death of people in clinical risk groups during the Delta variant period: English primary care network cohort study

Heather Whitaker, Ruby S. M. Tsang, Rachel Byford, Carole Aspden, Elizabeth Button, Praveen Sebastian Pillai, Gavin Jamie, Debasish Kar, John Williams, Mary Sinnathamby,

Journal of Infection · 2023 · 17 citations · 27 references

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