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. 2021 Oct 28;17(6):590–596. doi: 10.1007/s12519-021-00477-2

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© The Author(s) 2021

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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Fig. 3 — Weekly distribution of rhinoviruses (RVs) during Jan 2017–Dec 2020. a First-level public health emergency response was activated in Beijing, while a series of epidemic prevention measures had been implemented to restrict the outbreak of COVID-19; b the easing of the national lockdown, and some adults gradually were permitted to return to work; c the primary and secondary schools in Beijing were concurrently reopened. The gray line indicates the change in the weekly distribution of RV-positive rates from 2017 to 2019, and the red line indicates the change in the weekly distribution of RV-positive rates in 2020