Received: 5 July 2019
Accepted: 23 September 2019
First Online: 28 October 2019
Ethics approval and consent to participate
: For the 2016-HB (phone survey), consent was obtained orally from the participants (and also from the parents or guardians for participants under 16 years old) to answer the phone interview and, at the end of the interview, to receive the self-sampling kit. For BaroTest (virological sub-study), consent was obtained using a written informed consent, that was sent back by the participant to the laboratory with the DBS. The research protocol was validated by the Committee for the protection of the persons (CPP), the French ethical committee for biomedical research (no. 2015-A01252-47).
: Not applicable.
: The authors declare that they have no competing interests.