쉐도잉 연습: Explanation of Vaccine Adjuvants - 영상으로 영어 말하기 배우기

For our fourth lesson we're going back to where this all began

and we're talking about vaccines but specifically one component of vaccines that are known as adjuvants.

Now adjuvants are additives that are added to vaccines in order to stimulate the immune response

and typically they're added to most vaccines prior to their arrival at a pharmacy

but they can also be added right before you get

that injection and you can think of them like an alarm clock for our immune system.

They're telling our immune system to wake up, that we have something in our bodies that we need the immune system to respond to.

And they help by allowing more of our B

and T cells to create memory and antibodies against that pathogen that the vaccine is designed for.

Now for the past 50 years we've really used one main adjuvant and that's been aluminum salts.

And that's because those aluminum salts help to keep the vaccine in our bodies for a bit longer

so more of our immune system is able to respond to that vaccine.

But there's other types of adjuvants that are also used in the market, one of them being synthetic DNA.

So that DNA is made in the lab

and it's just very small pieces that is made to replicate little pieces of DNA that comes from viruses or bacteria.

So when it's in our bodies, our immune cells say, that's not supposed to be here.

They begin eliciting an immune response, but what they're actually eliciting in the immune response against is that vaccine that is now present in our bodies.

There's also a type of adjuvant called an emulsion

which is able to stimulate toll -like receptors

and these are proteins on the outside of our immune cells that once activated create a genetic response to release cytokines.

You can learn more about that in Sabrina's lesson on allergic reactions and the immune response.

Now if we use the COVID -19 vaccines as an example, we can see how sometimes adjuvants are or are not used.

The mRNA vaccines that were designed by Moderna or Pfizer -BioNTech

and the viral vector vaccines that were designed by Johnson & Johnson do not use any adjuvants.

So there's no aluminum salts, there's no synthetic DNA, there's no type of emulsions.

However, if we look at the protein subunit vaccine that does use an adjuvant, a saponin, and you can learn more about that in my Novavax explainer video.

So now that you have a better idea of what adjuvants actually are, stay tuned next week for our fifth episode where we're halfway through this science series,

and I look forward to seeing you there.

쉐도잉이란? 영어 실력을 빠르게 키우는 과학적 방법

쉐도잉(Shadowing)은 원래 전문 통역사 훈련을 위해 개발된 언어 학습 기법으로, 다언어 학자인 Dr. Alexander Arguelles에 의해 대중화된 방법입니다. 핵심 원리는 간단하지만 매우 강력합니다: 원어민의 영어를 들으면서 1~2초의 짧은 지연으로 즉시 소리 내어 따라 말하는 것——마치 '그림자(shadow)'처럼 화자를 따라가는 것입니다. 문법 공부나 수동적인 청취와 달리, 쉐도잉은 뇌와 입 근육이 동시에 실시간으로 영어를 처리하고 재현하도록 훈련합니다. 연구에 따르면 이 방법은 발음 정확도, 억양, 리듬, 연음, 청취력, 말하기 유창성을 크게 향상시킵니다. IELTS 스피킹 준비와 자연스러운 영어 소통을 원하는 분들에게 특히 효과적입니다.

쉐도잉 연습: Explanation of Vaccine Adjuvants - 영상으로 영어 말하기 배우기

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쉐도잉이란? 영어 실력을 빠르게 키우는 과학적 방법