在相对封闭的环境中，长时间暴露于高浓度气溶胶情况下，存在气溶胶传播的可能，但不是主要传播方式。这提醒医护人员和研究人员，在一些特殊环境下工作应注意采取空气隔离的防护措施。但普通公众对此不必过于担心，在家常开窗通风就可以。

How to prevent aerosol transmission of COVID-19?

Aerosol transmission may occur when people are exposed to high concentration of virus-laden aerosols in a relatively closed environment for a long time. It is not the main transmission route. Medics and researchers in high-risk work environment should adopt airborne infection isolation as a precaution. As for the general public, there is no need to worry. Just keep rooms well ventilated.