The Innovation (Feb 2021)

Contribution of Temperature Increase to Restrain the Transmission of COVID-19

  • Mengyuan Ren,
  • Rongjuan Pei,
  • Bahabaike Jiangtulu,
  • Junxi Chen,
  • Tao Xue,
  • Guofeng Shen,
  • Xiaoru Yuan,
  • Kexin Li,
  • Changxin Lan,
  • Zhen Chen,
  • Xinwen Chen,
  • Yun Wang,
  • Xiaoqian Jia,
  • Zewu Li,
  • Audil Rashid,
  • Tippawan Prapamontol,
  • Xiuge Zhao,
  • Zhaomin Dong,
  • Yali Zhang,
  • Le Zhang,
  • Rongwei Ye,
  • Zhiwen Li,
  • Wuxiang Guan,
  • Bin Wang

Journal volume & issue
Vol. 2, no. 1
p. 100071

Abstract

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Summary: The COVID-19 outbreak has already become a global pandemic and containing this rapid worldwide transmission is of great challenge. The impacts of temperature and humidity on the COVID-19 transmission rate are still under discussion. Here, we elucidated these relationships by utilizing two unique scenarios, repeated measurement and natural experiment, using the COVID-19 cases reported from January 23 – February 21, 2020, in China. The modeling results revealed that higher temperature was most strongly associated with decreased COVID-19 transmission at a lag time of 8 days. Relative humidity (RH) appeared to have only a slight effect. These findings were verified by assessing SARS-CoV-2 infectivity under the relevant conditions of temperature (4°C–37°C) and RH (> 40%). We concluded that temperature increase made an important, but not determined, contribution to restrain the COVID-19 outbreak in China. It suggests that the emphasis of other effective controlling polices should be strictly implemented to restrain COVID-19 transmission in cold seasons.