Received: 3 March 2021
Accepted: 28 May 2021
First Online: 18 June 2021
: We received approval to conduct secondary data analysis from the London School of Hygiene & Tropical Medicine ethics committee in May 2019 (LSHTM ethics ref.: 17100). For primary data collection, standard industry verbal and written consent was obtained by WIN/Gallup International Association (WIN/GIA). Informed consent was obtained from all subjects in this study.
: Not applicable.
: C.S., H.J.L. and P.P. are involved in collaborative grants with GlaxoSmithKline, Merck and Johnson & Johnson. H.J.L. has also received other support for participating in Merck meetings and GlaxoSmithKline advisory roundtables; H.J.L is a member of the Merck Vaccine Confidence Advisory Board. The views expressed are those of the authors and not necessarily those of NIHR-HPRU or Public Health England.