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Article History

Received: 8 September 2021

Accepted: 24 October 2021

First Online: 10 January 2022

Declarations

:

: LH, PM, and HK are employees of the GSK group of companies. PM report ownership of shares and/or restricted shares of the GSK group of companies. TN reports personal fees from GSK during the conduct of the study and personal fees from GSK, outside the submitted work. GG reports personal fees from GSK, Sanofi Pasteur Italy, MSD, Merck, Pfizer, Seqirus and Emergent Biosolutions, outside the submitted work. SM reports grants from GSK, MSD, Takeda and Sanofi, and personal fees from GSK, outside the submitted work. HK reports other relationships with GSK, during the conduct of the study. TW reports grants from the German Ministry of Research and Education, and personal fees from GSK, MSD, AstraZeneca, BioNTech, Pfizer, Johnson&Johnson, during the conduct of the study. JCdS reports personal fees from AstraZeneca and Mundipharma, non-financial support from AstraZeneca and other relationships with Boheringer Ingelheim, GSK, AstraZeneca, Mundipharma, Bial and Novartis, outside the submitted work. JHC, MF, MH and JPM have nothing to disclose.

: Not applicable.

: Not applicable.

: Not applicable.

: Not applicable.