Funding for this research was provided by:
Chief Scientist Office (SCAF/16/03)
Received: 13 March 2019
Accepted: 8 October 2019
First Online: 5 November 2019
: E.A.M.S. declares to have received unrestricted research support from Pfizer, grant support for vaccine studies from Pfizer and GSK and fees paid to the institution for advisory boards or participation in independent data monitoring committees for Pfizer and GSK. D.B. declares to have received unrestricted fees paid to the institution for advisory work for Friesland Campina as well as research support from Nutricia. None of the fees or grants listed here was received for the research described in this paper. No other authors report financial disclosures. None of the other authors report competing interests.