Environmental factors such as temperature and relative humidity can affect the inactivation and transmission of coronaviruses. By reviewing medical experiments on virus survival and virus transmission between infected and susceptible species in different temperature and humidity conditions, this study explores the influence of temperature and relative humidity on the survival and transmission of viruses, and provides suggestions, with experimental evidence, for the environmental control measures of Coronavirus Disease 2019. The results indicated that (1) virus viability and infectivity is increased at a low temperature of 5 ℃ and reduced at higher temperatures. (2) Virus survival and transmission is highly efficient in a dry environment with low relative humidity, and also in a wet environment with high relative humidity, and it is minimal at intermediate relative humidity. Therefore, in indoor environments, the lack of heating in winter or overventilation, leading to low indoor temperature, can help virus survival and help susceptible people being infected. On the contrary, modulating the indoor relative humidity at an intermediate level is conducive to curb epidemic outbreaks.

中文翻译：

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环境因素对病毒灭活影响的系统评价：对 2019 年冠状病毒病的影响。

温度和相对湿度等环境因素会影响冠状病毒的灭活和传播。本研究通过回顾不同温度和湿度条件下感染和易感物种之间病毒存活和病毒传播的医学实验，探讨温度和相对湿度对病毒存活和传播的影响，并以实验证据为研究对象提供建议。 2019冠状病毒病的环境控制措施。结果表明：（1）病毒活力和传染性在5℃的低温下增加，在较高的温度下降低。(2) 病毒在相对湿度低的干燥环境和相对湿度高的潮湿环境中病毒存活和传播效率高，并且在中等相对湿度下最小。因此，在室内环境中，冬季供暖不足或过度通风，导致室内温度偏低，可以帮助病毒生存，帮助易感人群被感染。相反，将室内相对湿度调节在中等水平，有利于遏制疫情的爆发。