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Article History

Received: 17 February 2017

Accepted: 28 February 2018

First Online: 5 March 2018

Ethics approval and consent to participate

: The ethics committee of the Azienda Ospedaliera of Padova reviewed the study related documents and approved the study.

: Data from children whose parents have signed an informed consent are collected and transmitted to a central Pedianet database in Padova after anonymisation.

: CG received consultancy and research grants to his referral Institutions from SPMSD, Merck, GSK-Bio, Gilead, ViiV-Healthcare; GG received grants from Sanofi Pasteur MSD, GSK Biologicals SA, Novartis, Pfizer, and Sequirus for taking part to advisory boards, expert meetings, for acting as speaker and/or organizer of meetings/congresses and as principal investigator and chief of O.U. in randomized controlled trials, and he recently became a member of the Regional Commission on Vaccines (Emilia Romagna Region, Italy) without any decision making role; the Commission has only a technical and scientific role; VB received grants from GSK, SPMSD, Novartis, and Pfizer for taking part in advisory boards, expert meetings, being a speaker or an organizer of congresses/conferences, and acting as promoter of epidemiological studies partially supported by vaccine producers; LC received research grants from SPMSD, and GSK-Bio; EP, XC, ST, CB, and SH were employees of Sanofi Pasteur MSD during the study period; AS was working as a consultant for Sanofi Pasteur MSD, mandated by AIXIAL; MV, LT, NR, FR, ChP, ASc, and RL don’t have any competing interests to declare.

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