新冠病毒在各种介质中的存活时间

新冠病毒在各种介质中的存活时间

Novel Coronavirus's Survival Time in Various Media

人们一直想了解，新冠病毒在空气中，以及在各种物体表面能存活多久。

People always want to know how long the novel coronavirus can survive in the air or on the surface of various objects.

一个科研团队做了一个实验并发表了论文。

A scientific research team did an experiment and published a paper.

他们是这样做的，采用一种喷雾装置，把病毒散发到空气中。

They did this by using a spray device to release the virus into the air.

气雾剂中的新冠病毒就会散落到各种物体表面。

Novel coronavirus in the aerosol would be scattered on all kinds of surfaces.

然后他们在不同的时间点进行检测，结果发现，在密闭的空间里，空气中的病毒通过气溶胶可以存活三小时。

Then they tested at different time points and found that the virus in the aerosols in the air could survive for three hours in a confined space.

这就意味着，在相对封闭的房间里，如果有感染了病毒的人在咳嗽，空气中三小时内都有病毒存在。

This means that in a relatively closed room, if someone infected with the virus is coughing, the virus will be in the air for three hours.

在金属比如铜的表面，病毒存活的时候可以长达四小时。

On the surface of metal such as copper, the virus can survive for up to four hours.

在塑料或不锈钢的表面就更恐怖了，病毒存活的时候可以长达两三天。

On the surface of plastic or stainless steel, the virus can survive for two or three days, which is even more horrible.

这个实验告诉我们，新冠病毒在不同的介质里或物体表面，存活的时间是不同的。

This experiment tells us that the survival time of the novel coronavirus is different in different media or on different surfaces.

因此，在封闭的环境里，病毒可以存活三小时，如果我们不戴口罩，就很容易被感染。

Therefore, in a closed environment, the virus can survive for three hours, and if we don't wear masks, we can easily be infected.

在比较空旷的公共场所，空气比较流通，空气中的病毒就很少。

In relatively open public places, the air is more ventilated, and there are few viruses in the air.

但是在物体表面，比如桌面、门把手，电梯按钮或扶手，病毒可以存活两三天。

But on the surfaces of objects, such as desktops, doorknobs, elevator buttons or handrails, the virus can survive for two or three days.

这也就解释了，为什么一月份在武汉，有三千多医务人员感染了新冠病毒。

This explains why more than 3, 000 medical workers were infected with novel coronavirus in Wuhan in January.

疫情初期，人们不了解这种病毒的传播规律，没有采取恰当的防护措施。

At the beginning of the epidemic, people did not understand the law of the spread of the virus and did not take proper protective measures.

人们用手触摸了门把手、桌面、纸张等物体表面，然后又触摸脸、眼睛、鼻子、嘴唇，以至于被病毒感染。

People touched the door handle, desktop, paper or other surfaces, and then touched the face, eyes, nose or lips, so that they were infected by the virus.

这个研究还表明，空气中气溶胶里的病毒存活时间较短，只有三小时。

The study also shows that the virus in the aerosols in the air has a shorter survival time, only three hours.

通过接触物体表面，病毒的传播更严重。

The spread of the virus is more serious by touching the surface of the object.

因此，在疫情期间，如果你的手接触到了任何物体，一定要用肥皂或者洗手液洗手。

Therefore, if your hands come into contact with any object during the epidemic, be sure to wash your hands with soap or hand sanitizer.

洗手的时间持续十五秒钟以上，才能洗去甚至杀灭病毒。

You should wash your hands for more than 15 seconds before the virus can be washed away or even killed.