Accepted: 22 March 2021
First Online: 1 April 2021
: M.L. has received honoraria/consulting from Sanofi–Pasteur, Bristol Myers Squibb and Merck; receives research funding (institutional) from Pfizer; and has provided unpaid scientific advice to Pfizer, Janssen, AstraZeneca, One Day Sooner and Covaxx (United Biomedical). Y.H.G. has received consulting fees from GSK and Merck not related to the subject of this manuscript, and research funding (institutional) from Pfizer and Merck also unrelated to this work. D.B.L. and S.C. declare no competing interests.
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