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. 2021 Jan 22;7:597375. doi: 10.3389/fmed.2020.597375

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Copyright © 2021 Xu, Yang, Zhao, Wang, Guo, Zhu, Rui, Wang, Liu, Lin, Luo, Su, Zhao, Zhou, Frutos and Chen.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Temperature thresholds of effective reproduction number (R_eff₎ in different seasons. (A) The temperature threshold of R_eff in spring and summer was 13.4–18.4°C. (B) The temperature threshold of R_eff in autumn and winter was 14.5–29.3°C. The yellow area represents the range covered by the temperature threshold.