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. 2022 Feb 11;12:2373. doi: 10.1038/s41598-022-06340-2

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© The Author(s) 2022

Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Area Under Curve (AUC) of the UTLA outlier measure for detecting unusually large rises in COVID-19 cases per UTLA, as a function of the lag between case counts and Bing data. The four figures refer to the four time periods: First wave (top) to fourth wave (bottom). Dates of the 4 periods are: (1) March 1st to May 31st. 2020, (2) June 1st to August 31st, 2020, (3) September 1st, 2020 to April 30th, 2021, and (4) May 1st, 2021 to December 13th, 2021. Curves are computed for all weeks and all UTLAs at each time period.