COVID-19 (Corona virus disease, 2019) is a worldwide public health emergency and the disease has been spreading globally at an alarming rate.^1,2 There is an urgent need to reduce the healthcare transmission risk among healthcare workers and patients in hospitals due to the pandemic. In the indoor environment, the respiratory infection can be transmitted via direct contact with surfaces contaminated by respiratory droplets, by inhaling airborne respiratory aerosol or by faecal–oral transmission.^3,4 Therefore, professional measures are indispensable to effectively control respiratory disease, including personal protection, social distancing, routine disinfection and a control of the indoor environment by using heating, ventilation and air conditioning (HVAC) system.

中文翻译：

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医院空气传播疾病室内消毒技术评估

COVID-19（Corona病毒病，2019年）是全球性的公共卫生突发事件，该疾病以惊人的速度向全球蔓延。^1,2由于大流行，迫切需要减少医护人员和医院患者之间的医疗保健传播风险。在室内环境中，呼吸道感染可通过直接接触被呼吸道飞沫污染的表面，吸入空气中的呼吸气溶胶或粪便-口腔传播而传播。^3,4因此，要有效控制呼吸道疾病，必须采取专业措施，包括人身保护，社会疏远，例行消毒以及使用供暖，通风和空调（HVAC）系统控制室内环境。