Name: ウイルスの広がり方 (How A Virus Spreads)
Uploaded: 2021-01-14T09:50:13.000Z
Duration: 1 min 44 s
Description: VoiceTubeの動画で発音を聞きながら英語表現を覚えよう！学べる英語：新型コロナウイルス,新型肺炎,COVID-19

There are plenty of ways it could be a sneeze, a handshake, to name a few.

分詞構句

Then there's our habits washing our hands, not touching our face.

Even the climate may play a role in determining how far and how fast and infection spreads.

Scientists have summed up how far an infection can spread with the number it's called Arnold.

A number greater than one indicates it'll grow less than one indicates the outbreak will die out.

Scientists determine the number with a formula that brings together all the environmental and biological factors.

An infection is introduced to human from an animal.

Let's say the bigger they are not number, the more people of virus can infect.

So an R nought of two means that patient zero will on average, infect to other people who in turn can infect another two people and so on.

On infection, like measles, sits higher of the spectrum with an R nought of between 12 and 18.

At the lower end is something like Ebola, with an arnold number of 1.5 to 2.5.

And while the flu varies from year to year, one study reports.

But as various factors change, so too does the Our note takes ours.

When it first emerged, SAR spread rapidly with a high Arnold, but people were only contagious.

 Once people were informed about the symptoms, they started coming to the hospital Earlier, people could check themselves into hospital before infecting other people, pushing the Arno number below one, and that is how a virus can spread. 