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. 2020 Dec 18;22(12):e23518. doi: 10.2196/23518

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©Alberto Jimenez Jimenez, Rosa M Estevez-Reboredo, Miguel A Santed, Victoria Ramos. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 18.12.2020.

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 http://www.jmir.org/, as well as this copyright and license information must be included.

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Graphs that show the day with the best correlation between daily PCR-positive COVID-19 cases and GT searches for COVID-19–related keywords. (A) Graph for the comparison between GT search terms and the number of PCR-positive COVID-19 cases, with different day ranges for delay. (B) Graph for the comparison between GT search terms and the number of people hospitalized due to COVID-19, with different day ranges for delay. (C) Graph for the comparison between GT search terms and the number of admissions to the ICU due to COVID-19, with different day ranges for delay. (D) Graph for the comparison between GT search terms and the number of people deceased due to COVID-19, with different day ranges for delay. GT: Google Trends; ICU: intensive care unit; PCR: polymerase chain reaction.