GCSE Biology - What Are Vaccines? Are They Safe? How Do They Work? Vaccines Explained #39

How do vaccines work? What's heard immunity? And what are the pros and cons of vaccination?

[Cognitoedu]

If you’d like to practise the material covered in this video, check out our platform at www.cognitoedu.org - it's totally free, and has built specifically to make learning and revision as quick and easy as possible. The main features are:
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Amadeus & Tom

[chetnakshatri]

He says 'thank you for watching'

me: thank you for making this video

[poppymaeeee]

I enjoy your videos so much they are so helpful. I have been doing my year 10 mocks and with your help I got a 7

[jibubbah]

You and whoever else are behind these videos are nothing short of a genius. I watched a bunch of ur vids the night before my mocks, and got a 9 bc of them.

[charliewalton]

I love how I got advertised for avast antivirus before watching this video...

[Explosion-uxkr]

My exams are in a few weeks and these videos are my last resort.

[rosechilleran]

POV: you're watching in the coronavirus pandemic.

[ethanmoyes]

I bet all of the dislikes are from antivaxxers as well

[yarapimtooo]

these videos are so helpful because there is the perfect amount of info to take in, AMAZING and SUPER HELPFUL!

[allaroundzora]

I got a grade 9 in biology & chemistry thanks to your Chanel!!!🥺

[Cookieplayxz]

Very useful videos could you upload AQA chemistry and biology I wanto be biochemist thanks for excellent videos it makes me so confident for understanding

[tangocream]

What type of vaccines would help slow down COVID-19?

[D.W.HSoundsOfficial]

This is a really great video! I really appreciate the time you must all take to make them! Just to point out, there's a spelling mistake at 0:15 - it should be 'immune', not 'immue'(!) Short rant over; I love your videos! Thank you!

[joshm]

Notice how science has changed over lockdown.

[JustMe-qdfh]

When u are watching this video in 2021 and he says epidemics...

[kaivans]

Great video. I love watching them. Just one small thing: the word immune is spelt wrong at 0:31

[yimello_]

2:21 what does this mean? Such as what is the "host" ?

[StudyNovaa]

Could I use these to study for the other CAIE IGCSEs? Or is the content too different? (The ones with letter grades not numbers?)

[vanithasivakumar]

anyone notice at 0:19 immune is spelt wrong btw nice video very informative

[Joseph_Omega]

At around time stamp 0:30, "IMMUNE SYSTEM" is misspelled.