[This corrects the article DOI: 10.2196/19630.].
©Benjamin Rolland, Frédéric Haesebaert, Elodie Zante, Amine Benyamina, Julie Haesebaert, Nicolas Franck. Originally published in JMIR Public Health and Surveillance (https://publichealth.jmir.org), 20.07.2021.