Name: ワクチン接種。簡単な歴史 (Vaccination: A brief history)
Uploaded: 2021-01-14T06:24:07.000Z
Duration: 1 min 37 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：

The history of vaccination has been dramatically evolving through the years.

Since  the time of its discovery and official public use 2centuries ago,

上級受動態

millions of lives has been saved from a single shot of this divine liquid,

extracted and cultivated by our very own scientists all over the world.

Despite its breakthrough in the history of medical technology,

the idea of vaccination has long been conceived by a Greek Historian

named Thucydides back in the year 429 BC.

He observed that those who survived on a smallpox plague that year has never been infected again.

The same idea has been developed by Chinese doctors on the year 900 AD

and were recorded to be the first to discover and use a primitive method of vaccination called “Variolation”.

Eventually, the technique was spread to Europe

until the late English Physician Edward Jenner revised this system

and introduced its modern form and finally gave the term “vaccination”.

Since then, vaccines evolved and participated in decreasing and eradicating devastating diseases

and saving hundreds of thousands of lives every day.

But what really are Vaccines? And how does it really work?

字幕リスト動画再生

ワクチン接種。簡単な歴史 (Vaccination: A brief history)

technique

term

eventually

world