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. 2023 Jan 16;25:e42401. doi: 10.2196/42401

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©Robin van Kessel, Ilias Kyriopoulos, Brian Li Han Wong, Elias Mossialos. Originally published in the Journal of Medical Internet Research (https://www.jmir.org), 16.01.2023.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in the Journal of Medical Internet Research, is properly cited. The complete bibliographic information, a link to the original publication on https://www.jmir.org/, as well as this copyright and license information must be included.

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Google Trends search volumes before and after the announcement of the COVID-19 pandemic. The vertical axis shows the average search volume (scaled from 0 to 100) before and after the pandemic was announced and after the announcement of conditional market authorization of the first COVID-19 vaccines.