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COVID-19 transmission in Mainland China is associated with temperature and humidity: A time-series analysis

Open access
Qi, Hongchao, Xiao, Shuang, Shi, Runye, Ward, Michael P., Chen, Yue, Tu, Wei, Su, Qing, Wang, Wenge, Wang, Xinyi, Zhang, Zhijie·2020·Science of The Total Environment

Abstract

COVID-19 has become a pandemic. The influence of meteorological factors on the transmission and spread of COVID-19 if of interest. This study sought to examine the associations of daily average temperature (AT) and relative humidity (ARH) with the daily count of COVID-19 cases in 30 Chinese provinces (in Hubei from December 1, 2019 to February 11, 2020 and in other provinces from January 20, 2020 to Februarys 11, 2020). A Generalized Additive Model (GAM) was fitted to quantify the province-specific associations between meteorological variables and the daily cases of COVID-19 during the study periods. In the model, the 14-day exponential moving averages (EMAs) of AT and ARH, and their interaction were included with time trend and health-seeking behavior adjusted. Their spatial distributions were visualized. AT and ARH showed significantly negative associations with COVID-19 with a significant interaction between them (0.04, 95% confidence interval: 0.004-0.07) in Hubei. Every 1°C increase in the AT led to a decrease in the daily confirmed cases by 36% to 57% when ARH was in the range from 67% to 85.5%. Every 1% increase in ARH led to a decrease in the daily confirmed cases by 11% to 22% when AT was in the range from 5.04°C to 8.2°C. However, these associations were not consistent throughout Mainland China.

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Metadata

Authors
Qi, H., Xiao, S., Shi, R., Ward, M. P., Chen, Y., Tu, W., Su, Q., Wang, W., Wang, X., & Zhang, Z.
Venue
Science of The Total Environment
Publisher
Elsevier BV
Published
2020-08
Volume
728
Pages
138778
ISSN
0048-9697 (ISSN-L)
OpenAlex
W3017051018
Cited by
513
References
19
FWCI
18.98
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: COVID-19 transmission in Mainland China is associated with temperature and humidity: A time-series analysis. https://app.cochat.ai/papers/10.1016/j.scitotenv.2020.138778
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Qi, H., Xiao, S., Shi, R., Ward, M. P., Chen, Y., Tu, W., Su, Q., Wang, W., Wang, X., & Zhang, Z. (2020). COVID-19 transmission in Mainland China is associated with temperature and humidity: A time-series analysis. Science of The Total Environment. https://doi.org/10.1016/j.scitotenv.2020.138778

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