How do vaccines work? - Kelwalin Dhanasarnsombut

Learn the science behind how vaccines trigger an immune response and teach our bodies to recognize dangerous pathogens.

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The first ever vaccine was created when Edward Jenner, an English physician and scientist, successfully injected small amounts of a cowpox virus into a young boy to protect him from the related (and deadly) smallpox virus. But how does this seemingly counterintuitive process work? Kelwalin Dhanasarnsombut details the science behind vaccines.

Lesson by Kelwalin Dhanasarnsombut, animation by Cinematic.

[courtneylafleur]

As a nursing student I think this is a great explanation of the use of vaccines. The one thing I would change is the blood dripping from the arms after injection. This does not happen post vaccination (maybe a tiny drop does) but for those afraid to vaccinate it may be one more reason not to. I would have used this video as a referenced piece of educational material for a health fair but the blood may cause more fear, especially for younger individuals.

[Idleshot]

It's amazing it's usually one person who scientifically creates something that outlasts them and it becomes part of history for all time. We are lucky to have individuals who focus on finding a solution to very specific problems that saves millions of lives, yesterday, today and tomorrow.

[cooper]

Can't find any anti vaxxers in the comments only comments talking about how many anti vaxxer commemts they found...

[Stickycomix]

That eight-year-old boy must've been so scared.

[yuvrajsinghjamwal]

I'm very surprised that there are so little comments about Covid here

[dlyonthescreen]

Kid : Doesn’t get vaccinated

Disease : *it’s free real estate*

[coconut]

Side effects: reaching adulthood, not dying, chance of not getting sick

[salicyl]

You left out passive vaccines, Passive Vaccines are Vaccines that contain an already produced antibody against a certain antigen, therefore they are not as good over time and need to get refreshed often but are excellent for patients with weakened immune systems like babies, old people, AIDS patients etc.

[גלעדסוירזנסקי]

Man the guy who invented the first vaccine was so ahead of his time. Truly genius

[Marcin-iczz]

I will NEVER vaccinate my child.




Some doctor will do it for me

[leodahvee]

Vaccines do cause severe side-effects, the thing is, THAT IS VERY VERY RARE, so it is worth taking the risk. Imagine you have to undergo a medical procedure to remove a tumor from your body, YES THERE ARE RISKS INVOLVED, but people usually take the risk! The thing with vaccines is, the risk is extremely low.

[MintPro]

I won't feed my child because he might choke

[emilyfauser]

Vaccines can be controversial for many reasons, and this video talking about how they actually work brings up an idea that is not talked about as often. Because of how vaccines work, people sometimes view them as counterintuitive. Because vaccines work by injecting a person with a small amount of the disease, or diseases, they are being protected against, people question how it works. When people are injected with the vaccine, it is common to experience side effects such as coughing, sneezing, inflammation, and fever. These symptoms, which are most commonly associated with becoming sick, sometimes make people feel like the vaccine is doing the opposite of what it is supposed to be doing. They go in trying to protect their kid from getting sick, so they often wonder why their kid starts to show signs of developing a cold or flu. These symptoms can easily be explained by what they are doing. They are working to trap things like bacteria and get rid of them from the body. After that, adaptive immunity kicks in and programs the body to get rid of these types of bacteria if they are introduced to the body in the future. Though the process and symptoms may seem harmful to parents, they are actually helping the child. When children are vaccinated against diseases, they have the opportunity to live a healthier life.

[lemone]

Kid that is in the pool: “Marko!” The unvaccinated kid: “Polio!” >:)

[jackonamac]

Vaccinated person: is hit by truck
Anti vaxxers: coincidence? I THINK NOT!

[pat]

*clicked on this video to see protesting anti-vaxxers*
*was not disappointed*

[DrPonner]

On the topic of themerisol, it is no more mercury than water is hydrogen.
The chemical formula for themerisol is C9H9HgNaO2S. It is a compound molecule that contains Mercury in its build-up. Anyone who knows anything about chemistry (which it seems most anti-vaccine proponent do not) understand that a compound containing an element generally has vastly different chemical properties than its individual elements. For example, Hydrogen being a flammable gas and oxygen being a relatively inert liquid.

[kingsteve]

The comments on this video are so soccer mom on Facebook who post nothing but bible quotes with minions plastered on them, and beg people to give them more moves on candy crush.

[Tursiopstruncatus]

Children's vaccines should be mandatory, just like safety seats in cars are mandatory.

[niccatipay]

Ted - ed i applaud you for your way of sharing your knowledge!