That's because the virus is thought to spread mainly through airborne droplets, or aerosols, which quickly become diluted outside.

这是因为该病毒被认为主要通过空气中的飞沫或气溶胶传播，这些飞沫或气溶胶会在室外迅速稀释。

Do avoid close contact with anyone who is coughing or sneezing, what you're trying to do is avoid the airborne droplets that can spread the disease.

避免与任何咳嗽或打喷嚏的人密切接触，你要做的就是避开会传播疾病的空气飞沫。

For instance, an infectious, or communicable, disease is the one that can be passed between persons such as by means of airborne droplets from a cough or sneeze.

极小的有机体，如，细菌和真菌可导致传染病。病毒和小虫子也不例外。