COVID-19 vaccine effectiveness against SARS-CoV-2 infection in the United States prior to the Delta and Omicron-associated surges: a retrospective cohort study of repeat blood donors

Feldstein LR, Jones JM, Busch MP, Welte A, Custer B, Grebe PE, Yu AE, Bravo MD, Bruhn RL, Stone M, Green V, Williamson PC

The Journal of Infectious Diseases

(2022)

https://doi.org/10.1093/infdis/jiac318

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