VIRUSES Explained in 9 Slides

At the beginning of this pandemic like everyone I was hearing lots about viruses, but realised I didn’t know that much about what they are. So I did a load of research and have summarised what I learned in these nine images. This video explains the key aspects of viruses: how big they are, how they infect and enter and exit cells, how viruses are classified, how they replicate, and subjects involving viral infections like how they spread from person to person, how our immune system detects and destroys them and how vaccines and anit-viral drugs work.

Human error:
In slide 9 toxin vaccines are for bacterial infections like tetanus, not viruses.

Big shoutout and thanks to these people for fact checking my work:
Dr Michael Bramhall
Dr Christoph von Arx

#virus #ThreeByThree #DomainOfScience

--- Posters ----

-- Some Awesome People ---
And many thanks to my $10 supporters on Patreon, you are awesome!
Theodore Chu
Sebastian
Duong Nguyen

Join the gang and help support me produce free and high quality science content:

--- My Science Books ----
I also write science books for kids! You can see them all here:

--- Follow me around the internet ---

--- Further Reading ---

Chapters
0:00 Introduction
0:14 Virus Overview
1:21 Virus Size
1:58 Virus Classification
3:34 Cell Penetration
4:32 Virus Replication
5:58 Virus Release
6:58 Virus Infection and Range
8:15 Immune Response
9:22 Vaccines

[stevie]

This guy deserves way more recognition. His videos are so informative and he puts a lot of effort into his production too

[xBris]

5:15 quick side note: RNA is not "inherently" less stable than DNA. That's a very wide spread misconception that you hear in basically every video about this topic. It's true that RNA is far less stable in basic conditions (due to the 2'-OH group), that it degrades quickly if divalent (heavy) metal ions are present, and that RNases (enzymes that break down RNA) are basically omnipresent; RNA as a chemical molecule on the other hand is just as perfectly stable as DNA, as long as those three conditions (pH, metals, and RNases) are cared for. You can leave an acidic solution of metal-free and RNase-free RNA on a bench at ambient temperatures for years without any noticable degradation. Biology has simply evolved to quickly be able to degrade RNA, it's not an inherent property of the molecule.

[ScopeofScience]

"if only people would listen"...
sigh.

[loril]

Thank you for the 11-minute lesson (including "Simplification Warnings")! Excellent.

[richardwilliamsmusic]

I learned more in 10 minutes than like 100 hours of school. Great work man!

[redpower]

Amazing video! Thank you so much! Keep doing these incredible videos!

[arnaldosantoro]

I'm Italian and have IELTS C1 english level. I'm C2 in Reading and Listening. I could make this video's italian subtitles for my friends. How can I do it?

[nicholasolivier]

Love how simple but detailed the videos are.

Could you please make a video about geology, Mushrooms, evolution, and religion at some stage?

[loladog]

Great video. It would be good to also deal with medical treatments for viruses to show how these work separately from the immune system and why they are only feasible for some viruses.

[Al-cynic]

I felt your frustration with vaccines, I did one immunology course in a biology degree 30 years ago, the ignorance and nonsense being pedaled is super infuriating

[eciruamttenrub]

A fantastic presentation. Such insights stimulate and inspire lots of ideas. Unfortunately, the vast majority of people will neither take the time to peruse it, or understand it.

More please! And stay safe.

[megamcg]

Great video. More people should watch this video.

[navaneethkrishna.b]

*I THINK THIS IS THE MOST UNDERRATED VIDEO IN THE HISTORY OF YOUTUBE!*

[StayCoolKeto]

Wicked! Love your videos mate! science is awesome lol

[natalielivella]

Please consider doing a similar video that focuses on the coronavirus! We are all so desperately in need of easy-to-understand, scientific information. Thank you for this!!!

[imperfectmammal]

Very informative. Thanks for the making such a beautiful video and making it simple.

[yuanningfu]

Thank you for uploading this vedio. Help me know more about myself and the outside world!

[chesanducharika]

We just don't need school if we had more videos like this <3

[Skrillar]

this is close enough. close enough to be considered a very good video

[alejandrobardolaserna]

I just found out thanks to this video you can make parts of each video with the editor. Wow