The Side Effects of Vaccines - How High is the Risk?

  • Published: 12 May 2019
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    Vaccines are one of our best tools to prevent dangerous diseases, but they come with side effects. So would it be safer not to vaccinate?

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Comments • 65 640

  • Kurzgesagt – In a Nutshell

    Dive into sources and further reading here:

    Vaccines and their side effects are a hard topic to cover – we know we keep saying this, but this case especially, there were a lot of things to consider. You can’t blame people for being worried, so we wanted to take their concerns seriously.

    Because it is impossible to cover everything there is to know about vaccines in a ten minute video our sources are extra extensive and explain a lot of aspects in more detail, with an extra focus on further reading.

    So if you want to dive in deeper or have more arguments at hand for your next heated discussion, here you go.

    • frick ajit pai
      frick ajit pai  1 days back

      Kurzgesagt – In a Nutshell epic

    • joel marin
      joel marin  1 days back

      thank you for making this video, its been a great help for my social justice project. I hope to use this as a source to help write my letter to a politician, (who is undecided as of writing this), I really hope to make a change and to make vaccinations more mandatory in the united states!

    • Jarley
      Jarley  1 weeks back

      Kurzgesagt – In a Nutshell you forgot one thing that vaccines cause:

      adult hood
      I don’t want that happening to my children

    • GodmanBG
      GodmanBG  1 weeks back

      It would be nice if you had touched upon, or at least mentioned that we vaccinate against a multitude of other diseases besides measles.

  • DylanDestruction
    DylanDestruction  7 minutes back

    Unvaccinated Child: Exists
    death: waits in corner staring

    • Half'n Whole
      Half'n Whole  1 hours back

      I don't need vaccines or essential oils when I can lick the floor for free strengthening my immune system!
      Edit:I just died from Ebola and I'm posting this from the afterlife

      • Daniel S.P.
        Daniel S.P.  1 hours back

        That last part made me sad

        • ЯoИИiЁ MoЯЯisoИ
          ЯoИИiЁ MoЯЯisoИ  2 hours back

          10 best clickbaits that actually worth to watch

          • Gacha Salam
            Gacha Salam  2 hours back

            The child is crying for the docters to give him the vaccines so he doesn't die of Polio

            • Rado's CS SHIT POST
              Rado's CS SHIT POST  2 hours back

              Imagine an antivaxx getting bit by a rabid animal and saying " Vaccines are more harmful than rabies"

              • ItzDestroyerMC
                ItzDestroyerMC  3 hours back

                you my friend are doing the world a good service

                • NitrogeoN
                  NitrogeoN  4 hours back

                  Kurzgesagt's first diss track:

                  I'd say it was a success.

                  • NitrogeoN
                    NitrogeoN  4 hours back

                    the 7.3k dislikes are pissed off nonvax moms

                    • Matthew Mendez
                      Matthew Mendez  4 hours back

                      also,i am also a youtuber.

                      • Matthew Mendez
                        Matthew Mendez  4 hours back

                        I want a bird with a blue body,yellow eyes and purple wings named cookou.

                        • Alexiully
                          Alexiully  4 hours back

                          The 7,3k people that disliked should not be allowed to have kids...

                          • John Doe
                            John Doe  5 hours back

                            1AM and I'm frantically reading for my written exam tomorrow — so obviously I'm procrastinating to feel better. Didn't go very well, until 3:04 got me laughing out loud!

                            • Cocotheturtle21 X
                              Cocotheturtle21 X  5 hours back

                              Where I was born vaccinations aren’t the parents choice and that’s how diseases and viruses such as influenza and measles can’t make a comeback there.

                              • Andrea Ceres
                                Andrea Ceres  5 hours back

                                These comments are giving me new hope in humanity

                                • TaroT SselluosS
                                  TaroT SselluosS  6 hours back

                                  Anti vacsers need to die off for the betterment of humanity

                                • SkinnyTraver Not Your Buissness

                                  FINALLY Maybe this great video will stop thoes anti vax moms. Like thank you for this video.

                                  • Grim Reapers GSIII
                                    Grim Reapers GSIII  7 hours back

                                    The reason we don’t have as many measles cases is because of the vaccines

                                    • Logan Hilburn
                                      Logan Hilburn  7 hours back

                                      You guys are beautiful.

                                      • Sekai Ni Heiwa
                                        Sekai Ni Heiwa  4 hours back

                                        Your avatar whispers me that you have some psychological issues are you sure it wasn't vaccine injury? You can get some vaccine injured compensation. Don't delay.

                                    • Sim Suil
                                      Sim Suil  7 hours back

                                      The video game and movie references are so good

                                      • ADLAZER EX
                                        ADLAZER EX  8 hours back

                                        Bet he got payed by a rich doctor not anti vaxx but it would make sense

                                        • Vox3l-Gl1tch
                                          Vox3l-Gl1tch  5 hours back

                                          If Vaccines are so bad, why wouldn't they be banned? Oh wait, because they aren't.

                                        • SamSki
                                          SamSki  7 hours back

                                          ADLAZER EX what??

                                      • Carl
                                        Carl  8 hours back

                                        people who dislike this video make me want to cry - thank you for highlighting such an obvious and important problem to the people of the world - we (sane people) love you!

                                        • mincegaming350&minecraft
                                          mincegaming350&minecraft  5 hours back

                                          You aren't sane if you are one of these:
                                          1. Religious
                                          2. Vegan
                                          3. Feminist
                                          4. Flat earther
                                          5. Anti vaxxes
                                          I bet you are super triggered by 1.

                                      • mighty kitty
                                        mighty kitty  8 hours back

                                        How does vaccines even cause autism?

                                        Simple, it doesn't. Like HOW!? HOW!?!?!?

                                        HOW WOULD THAT EVEN HAPPEN!?

                                        • Zexion
                                          Zexion  8 hours back

                                          These animations are so good

                                          • Zaoshi Kaba
                                            Zaoshi Kaba  9 hours back

                                            Aren't people born with autism? So even if vaccines do cause autism, it would be appear in children, not vaccinated people. Not to mention by that time vaccine is long gone meaning it was our overprotected body that caused the autism.

                                            • Zaoshi Kaba
                                              Zaoshi Kaba  9 hours back

                                              1:51 launch the missiles!

                                              • Sekai Ni Heiwa
                                                Sekai Ni Heiwa  10 hours back

                                                Since we are over populated we should say thanks to those who wants to die fast . What the issue here I don’t understand. You profixers are all protected . Let people scarified there life’s and reduce global warning . Why you suckers so desperate here ? Are you worry about those few immuno compromised child ? Who need natures mistakes anyway ? Spartans feed birds with nature’s mistakes . Let people die and save the world . Or you feel that you were fooled ? Or you understood that you have been damaged ? And now envy to those who are smarter , healthier ?

                                                • Sekai Ni Heiwa
                                                  Sekai Ni Heiwa  4 hours back

                                                  I just look bellow at other commenter avatars and can tell with confidence that the situation in the world is progressing in a good way. In 20 years no one will ever dare to mention overpopulation.
                                                  If anyone looking for investment forget about gold and silver- funeral business, mental institutions will be top.
                                                  For others do not invest in long term real estate- there will be no value in the future. An abundance of housing coming.

                                                • Sekai Ni Heiwa
                                                  Sekai Ni Heiwa  4 hours back

                                                  After opening your channel I'm changing my statement not 99% but 100%. Show me youtube avatar and Ill tell you whatever the person is vaccine injured or not. Gonna start writing an article and will post in the New England Medical Journal.

                                                • Sekai Ni Heiwa
                                                  Sekai Ni Heiwa  4 hours back

                                                  ​+mincegaming350&minecraft Look how f. smart I am.
                                                  I see your avatar and I am 99% sure that you are vaccine injured with full throttle autism features. Just don't be offended. I am stating as a fact not insult.

                                                • mincegaming350&minecraft
                                                  mincegaming350&minecraft  5 hours back

                                                  Yeah but they are killing children, which is rude if they could just not give birth to children at the first place

                                              • Arrya Willems
                                                Arrya Willems  10 hours back

                                                I will be vaccinated tomorrow. At first I didn’t want to because of all the misinformation on the internet. But this video changed my mind.

                                                Thx kurgezagt for educating people around the world!

                                              • Steve Tate
                                                Steve Tate  10 hours back

                                                10:06 when you check your favorite Minecraft channel and all their videos are now fortnite

                                                • Sekai Ni Heiwa
                                                  Sekai Ni Heiwa  10 hours back

                                                  Vaccines safes life’s - we are overruled. Vaccines reduce traffic,lower real estate prices , reduce global warming , creates additional jobs in mental institution sectoral, increases XXXXL diapers sale and Japanese anime makes billions . How can people say vaccines are bad . Crazy. But I’m Orthodox Jew so we are exempt from vaccination. So sad that we can’t join to benefit mankind .

                                                  • TATO SOme
                                                    TATO SOme  11 hours back

                                                    I’m a proud father of 4 anti vax kids.

                                                    Edit: I’m a proud father of 2 anti vax kids.
                                                    Edit: I’m a proud father of one child and i believe vaccinations help protect our kids

                                                  • Or3o Nightcore
                                                    Or3o Nightcore  12 hours back

                                                    shit i took my second vaccine shot today o.O

                                                    • Nicholas Leclerc
                                                      Nicholas Leclerc  12 hours back

                                                      You should’ve honestly put a Super Sayian silhouette with a big red X sign on it; because you’re basically saying that Zenkai boosts don’t exist in humans without the immunity system

                                                      • Hummus Sapien7.6Billion
                                                        Hummus Sapien7.6Billion  13 hours back

                                                        everyone who down voted is an anti-vaxxer

                                                      • Darth Games
                                                        Darth Games  13 hours back

                                                        Fun Fact (or just Fact idk): Earth #199999 is the number for the Earth on the MCU
                                                        Since in Marvel,every Universe has it's own Earth and it's number

                                                        • Freddy 2.o
                                                          Freddy 2.o  13 hours back

                                                          The people who disliked this video are either antivaxers or people who just saw the thumbnail

                                                          • クラリス
                                                            クラリス  14 hours back

                                                            G T A

                                                            • Gregor Coetzee
                                                              Gregor Coetzee  14 hours back

                                                              The War of Cells: Comming this Summer

                                                              • Aqua 458
                                                                Aqua 458  15 hours back

                                                                Where my anti-vaxxers at!?

                                                                Oh wait there in the grave

                                                              • Finix
                                                                Finix  15 hours back

                                                                Vaccines are medicines, and as all medicines, there is a need to consider children by case. In Italy they do not do that. We have more than 10 mandatory vaccines, and some of them are done together (3 vaccines at the same time), and this is dangerous. Who does say so? The books of medicine! They say something but they do the opposite.

                                                                • Vary Olla
                                                                  Vary Olla  15 hours back

                                                                  No = it's not.  From the very moment an infant is born = it is exposed to a myriad of microorganisms.  You have right now a host of bacteria, viruses, and fungi living inside you and which wage a continual war against yourself and each other. 

                                                                  So not all vaccines are the same as some contain entire weakened pathogens - while others only contain pieces of a pathogen or else the toxin it produces.  A piece of something - let along a toxin - can not replicate and thus it is impossible to infect the individual with the condition.  Meanwhile the employment of attenuated pathogens is tolerated by almost everyone.  We can sometimes see - albeit very rarely - a few who owing to some idiopathic issue with their immune system they have trouble destroying the weakened virus. 

                                                                  So a person who can not even tolerate exposure to a weakened virus = will in all likelihood react similarly - or worse - upon exposure to the full-strength "wild" version of the same.  If you want to critique vaccine employment you'd better look at the entire picture and get your facts straight first.  Have a nice day.

                                                              • Gannicus
                                                                Gannicus  15 hours back

                                                                people are concerned that if vaccines were mandated by the government, that opens the precedent that your personal health care is no longer private, meaning that opens pandora's box for forced abortions, or something more realistic like micro-chipping citizens. The liability of the government for a bad batch of vaccines, or the fact the government could maliciously alter a vaccine after they are mandated is a privacy and health concern. Vaccines are good, but they shouldn't be mandated.

                                                                • Vox3l-Gl1tch
                                                                  Vox3l-Gl1tch  5 hours back

                                                                  Ah, so those people that think that vaccines shouldn't be mandatory are ultra-paranoid people that think everyone wants their personal information?

                                                              • Bill Kerman
                                                                Bill Kerman  15 hours back

                                                                I got sick after my flu vaccine

                                                                • The Elite Pickle
                                                                  The Elite Pickle  13 hours back

                                                                  But not nearly as sick as you would have if you had gotten the flu

                                                              • Válter Venâncio
                                                                Válter Venâncio  15 hours back

                                                                Now we need a video on Cholesterol, please!!

                                                                • Delkarix
                                                                  Delkarix  16 hours back

                                                                  Anti-vaccination is a problem that will literally solve itself.

                                                                  • Vox3l-Gl1tch
                                                                    Vox3l-Gl1tch  5 hours back

                                                                    +Sekai Ni Heiwa What about the people that can't get vaccinations due to medical conditions? You utter fucking moron.

                                                                  • Sekai Ni Heiwa
                                                                    Sekai Ni Heiwa  7 hours back

                                                                    +MQF II But you are protected you diluted moron. So whats the point of vaccines if you afraid of disease to catch. Anybody home at your head?

                                                                  • MQF II
                                                                    MQF II  8 hours back

                                                                    Sekai Ni Heiwa Problem Is, it’s probable that they'll take some people with them.

                                                                    Like, to visit South America, you must have Yellow Fever vaccine. Imagine an Anti-Vaxx faking his passport and ending up causing an epidemic outbreak In his country when he comes back?

                                                                  • Sekai Ni Heiwa
                                                                    Sekai Ni Heiwa  10 hours back

                                                                    Delkarix so be happy . Why the fuck you worry about those who’s gonna soon die ? Not enough people in this world ? What’s the matter with these pro vaxxers morons . Just be happy that some people sacrifice there life . You are protected so chill out and watch how anti vaxxers die like flies.

                                                                • HeyItsHarlys
                                                                  HeyItsHarlys  16 hours back

                                                                  I am an anti-vaxx mother of 2 and my kids will still never get vaccines

                                                                  • HeyItsHarlys
                                                                    HeyItsHarlys  9 hours back

                                                                    +The Elite Pickle True. It's probably my fault cuz i dunno how to word it like it's a joke sometimes /shrug

                                                                  • The Elite Pickle
                                                                    The Elite Pickle  10 hours back

                                                                    HeyItsHarlys well I’m not sure if people just naturally click on everyone’s profile but I for one do not however you have provided evidence as to why it was a joke and your right a mother probably wouldn’t play ark

                                                                  • HeyItsHarlys
                                                                    HeyItsHarlys  13 hours back

                                                                    +The Elite Pickle Take a lookie at my channel and thoust will tell I'm not a womam or a mother

                                                                  • The Elite Pickle
                                                                    The Elite Pickle  13 hours back

                                                                    HeyItsHarlys that wasn’t a joke. It wasn’t sarcastic in any way or obviously a joke.

                                                                  • HeyItsHarlys
                                                                    HeyItsHarlys  16 hours back

                                                                    +NOB ODY_ i forgot i can't make jokes on yt comments rip

                                                                    But that sounds about right

                                                                • Martial Kintu
                                                                  Martial Kintu  18 hours back

                                                                  Tell them about the aluminium, the mercury and etc.

                                                                  • Martial Kintu
                                                                    Martial Kintu  9 minutes back

                                                                    +Nadia Grzeszkiewicz-O'Neill The majority of the ingredients you mentioned are essential amino acids, and potassium is a actually an important nutrient. You literally can't argue the same for say, mercury.

                                                                  • Martial Kintu
                                                                    Martial Kintu  14 minutes back

                                                                    +Vox3l-Gl1tch "Vaccines don't even contain mercury anymore"
                                                                    Have you read the ingredients of certain vaccines, because I have.

                                                                    "Because people like you don't know basic chemistry"
                                                                    Because what? What are you alking about. I know enough chemistry to know that mercury doesn't bring any benefits whatsoever and shouldn't be added to any vaccination. Period.

                                                                    "Literally anything can be a toxin in high enough dose"
                                                                    Yeah, I know that. But somethings are more toxic than others, aren't they?

                                                                    "A singular bite of salmon has 100× the amount of Mercury"
                                                                    No research has ever proven what you just claim. And yes, Salmon contains mercury and it's sad that it does because we caused this by spilling toxic metals into the sea. And yes the mercury content iin salmon is bad for us too.

                                                                    "It was used as a preservative to make sure that the vaccines didn't expire quickly, which nowadays..."
                                                                    I'm telling you. I have read the ingredients from modern vaccine contents. Some contain mercury, some contain lithium, most of them contain a lot of artificial substances which you otherwise wouldn't find I'm nature. It's not just some anti-bodies and a little mercury for preservation.

                                                                    Look it up for yourself, damn it. There are stories and even news report of people getting long-term damages and even death from vaccines. Let me not remind you that Bill Gates gave free vaccines to Africans only to have them killed and admitted to he's own words that there's a need for population control. Let me not remind you that just some decades ago black people were injected with Syphilis viruses. Let me not remind you that the CIA used to conduct hazardous experiments upon the population such as, spraying people with bug spray. And let me not remind you, that despite all the overwhelming evidence of the damaging of fluoride, the government still adds it to tap water (yes, tap water) with the excuse that it will strengthen our teeth. Don't be naive man. I'm not just telling you this from some random blog. I've looked into these sort of things for years. I have literally predicted events before they were mainstream news, not because I'm some wannabe Neo, no but because I literally want to known the truth and not the status quo.

                                                                  • Vox3l-Gl1tch
                                                                    Vox3l-Gl1tch  4 hours back

                                                                    +Martial Kintu Vaccines don't even contain Mercury anymore, because people like you don't know basic chemistry. Literally anything can be a toxin if in a high enough dose, but the dose of Mercury in vaccines beforehand was so minimal, that a singular bite of salmon has 100x the amount of Mercury in it. It was used as a preservative to make sure that the vaccine didn't expire quickly, which nowadays vaccines expire much quicker due to the removal of Mercury.

                                                                  • MQF II
                                                                    MQF II  7 hours back

                                                                    Your blood has literal explosives In its composition.

                                                                    Even better. Sodium Chloride has a substance that burns and explode upon contact with water and Chlorine Is corrosive and toxic if inhaled or consumed.

                                                                    Yet you put salt In your food A-Ok.

                                                                • Ravi Jyot
                                                                  Ravi Jyot  19 hours back

                                                                  I have never been vaccinated is it to let for me or is everything normal.