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Article History

Received: 3 July 2019

Accepted: 17 February 2020

First Online: 27 February 2020

Ethics approval and consent to participate

: “Not applicable”.

: “Not applicable”.

: D.B. has received travel grants from AbbVie. S.T. and S.S are employees of MSD. R.B. has received travel grants from AbbVie, Gilead Sciences and MSD to attend scientific congresses and research grants from Gilead and MSD. Ö.K. has received a travel grant and research grants from Gilead. G.H. declares to be member of the VHPB secretariat for which the University of Antwerp obtains unrestricted grants from different vaccine and pharma manufacturers (AbbVie, Gilead, GlaxoSmithKline Biologicals, Merck, MSD and Sanofi Pasteur). M.J. has received speaker/ consultancy fees from MSD and AbbVie, and a research grant from MSD. F.N. has received research grants, consultancy agreements and travel grants from AbbVie, Astellas, BMS, CAF, Durect, Ferring, Gilead Sciences, Gore, Janssen-Cilag, Intercept, Ipsen, MSD, Novartis, Ono Pharma, Promethera Biosciences, and UCB. E.S. is an advisor for AbbVie, and investigator for Gilead, Roche. He is the founder and CMO of Promethera Biosciences. B.C. has received travel grants from Abbvie, Gilead and MSD to attend scientific meetings. K.P. declares no conflict of interest. L.A. declares no conflict of interest. G.R. has received research grants from AbbVie, Janssen Pharmaceuticals, MSD, and has acted as a consultant/advisor for AbbVie, BMS, Gilead Sciences and MSD. J.V.L. has received speaker fees and research grants from AbbVie, Gilead Sciences and MSD. The funders provided the mathematical model used for calculations. All data were provided by the other co-others.