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 • 73 204

  • 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.

    • Get Pugger
      Get Pugger  2 weeks back

      Clint Ofray did your brain kill itself because it knew you were no hope

    • Ese Callum
      Ese Callum  2 months back

      vaccines are not subject to the safety rigors undergone by other pharmaceuticals in the FDA approval process. There are no large scale, double-blind, placebo controlled studies. And, in the one 1930 human study of thimerosal that predated its use in vaccines, all the subjects injected with thimerosal died. In 2004, an FDA official acknowledged in testimony before a Congressional committee, that no government or privately funded study has ever demonstrated thimerosal’s safety. On the other hand, there is plenty of science suggesting that thimerosal is NOT safe. Several hundred studies available on PubMed link thimerosal exposure to the neurodevelopmental and immune system diseases that are now epidemic in the generation of American children born after the CDC dramatically increased childhood thimerosal exposure starting in 1988. My book, Thimerosal— Let the Science Speak, summarizes these studies. The scientific literature inculpates increased thimerosal exposure as a culprit in the explosion of ADD, ADHD, speech delay, narcolepsy, SIDS, ASD, seizure disorder, tics and anaphylaxis, including asthma and food allergies. According to the CDC, one in six American children—the so called “thimerosal generation”—now suffers from a developmental disability. We have published a compendium of 80 published, peer-reviewed studies that strongly suggest a link between thimerosal exposure and autism.

    • jsmyth024
      jsmyth024  2 months back

      I'm sorry, but we are the sickest species ON THE PLANET. Just think about that for ONE minute.
      Our gut microbiome is being sterilized by pesticides like round up, and we are told they are safe(yes, they kill the bacteria in your gut - shocker), but DON'T WORRY, they have something you can buy for that.

      We are developing autoimmune diseases left and right. A study was just released that shows how millennials health plummets at around age 27, and no one is concerned that it's something to do with out healthcare? "healthcare" - that's a misnomer at this point.

      The SAME people that push round-up as being safe(now proven to cause cancer in a court of law), "provide" us with cancer treatments and vaccines.

      The same people who sell us vaccines, treat our children of these chronic illnesses. NO ONE is brave enough(or intelligent enough) to raise an eyebrow to that?

      Oh, wait, they are, but then they are told they are just crazy conspiracy theorists who are probably literally hitler and voted for trump. And people fall for it because it makes them FEEL safe. Meanwhile over FIFTY PERCENT of our youth(YOUTH!) have chronic illnesses that the AMA says they will NEVER recover from. And it's not enough for these mega corps to make millions or billions, now they are pushing for trillions.

      That's not fishy to you guys?

      I swear, people have thrown common sense directly out of the nearest window for, "double blind published data" We will NEVER get it. There are too many variables involved and you know this, that's why you keep asking.

      Honestly it makes me sick and people who are working for them should be ashamed of themselves. They aren't, because they have money in the bank, but one day, people are going to have had enough and they will be found and prosecuted.

      How many more of our loved ones have to suffer and die before it gets to that point?

    • frick ajit pai
      frick ajit pai  2 months back

      Kurzgesagt – In a Nutshell epic

    • joel marin
      joel marin  2 months 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!

  • Alper Filiz
    Alper Filiz  47 minutes back

    Bu video cok önemliydi aşı karşıtı bir video olsaydı kanalı engelleyecektim. Teşekkürler kurgesagt.

    • Malilla X
      Malilla X  1 hours back

      Fortunately, smart people are in the majority; )

      • Minh Quan Vo
        Minh Quan Vo  2 hours back

        It's 2019, and we have to make this video

        • Rachel Leach
          Rachel Leach  3 hours back

          my professor once said, “you’re basically injecting a mugshot of the bad guys into your body for the good guys to fight off.”

          • Horacio Ruiz
            Horacio Ruiz  3 hours back

            *has the most dangerous disease*
            Doctor: put a band-aid on him this is only a animation


              Still get vacintated it good 👍

              • Mathis Foret
                Mathis Foret  10 hours back

                , before the vaccination i had developede an allergie and when go for the vaccination of the H1n1( French name) i go internationale hospitol

                • NiftyBad Gaming
                  NiftyBad Gaming  10 hours back

                  The only thing you will catch from Vascine is being alive

                  • Rak Usu
                    Rak Usu  11 hours back

                    As modern days gets more advanced, some people get dumber. Vaccines exists for a reason. In third world countries, it's especially necessary as diseases like measles is still pretty common.

                    • The entire us Millitary
                      The entire us Millitary  12 hours back

                      There’s a vaccine in Area 51 that doesn’t cause autism

                      • Joshua Jeong
                        Joshua Jeong  13 hours back

                        Wonder what would happen if an antivax mom watched this?

                        • Tina Lavender
                          Tina Lavender  14 hours back

                          I have been vaccines to autism yet I still have it

                          • Alvaro Perez
                            Alvaro Perez  15 hours back

                            Please do more videos dudes!!!

                            • Alex Abrashev
                              Alex Abrashev  18 hours back

                              Please someone make bulgarian subtitles!

                              • Need memes? I got u
                                Need memes? I got u  20 hours back

                                Vaccines cause a…


                                • Robert Russell
                                  Robert Russell  20 hours back

                                  Video: the risks of vaccines
                                  Karen *oh yeah*
                                  Karen during disease part: these effects aren't so bad, why are people afraid?
                                  Karen during vaccine part: OMG THESE EFFECTS ARE WAY TOO DANGEROUS BIG PHARMA IS KILLING ME

                                  • Pafel Pafelov
                                    Pafel Pafelov  22 hours back

                                    This video explained vaccines so simple even retards can understand it... I see what you did there kurzgesagt ;)

                                    • DJ_Trolly
                                      DJ_Trolly  22 hours back

                                      Memory cells = PTSD cells

                                      • Matias Braga
                                        Matias Braga  23 hours back

                                        Can vaccines produce stronger bacteria/viruses every year? Can this lead to stronger vaccines every year? Does this have a limit? What if you forget to take vaccines as frequently as you should?

                                        • Richard Gregory
                                          Richard Gregory  23 hours back

                                          (a) no (b) no and (c) your immunity lapses or gets weaker so you're at higher risk of infection

                                      • Drawing It!
                                        Drawing It!  1 days back

                                        i sure hope there are only 35 000 000 anti-vaxxers out there

                                        35 000 000 out of 7 000 000 000 is 5% of our population

                                        • Drawing It!
                                          Drawing It!  1 days back

                                          who else alr know how vaccines work but just want to see the video?

                                          • Hesu Teravanesyan
                                            Hesu Teravanesyan  1 days back

                                            If I showed this to my anti vaxx mom she would just say this people are making it up and doing it for the money. It annoys me so much and I can’t do anything about it to get vaccinated. She also says “look I didn’t get vaccinated and nothing happened to me”. It pisses me off so much

                                            • socialism don't work at all

                                              The dislikes are anti-vacs

                                              • idk ?
                                                idk ?  1 days back

                                                Surprisingly my dad was the anti vaxx one but since they were divorced and my mom had full custody, I made it to 13! I just now showed him this and I hope it will change his mind

                                                • momomo CRONx
                                                  momomo CRONx  12 hours back

                                                  Good for you. I hope your dad well, and i wish your comment gets many likes.

                                              • Andrew Clarke
                                                Andrew Clarke  1 days back

                                                Saying vaccines and autism are linked is liked saying school causes disabilities (like being in a wheelchair)

                                                • Andrew Clarke
                                                  Andrew Clarke  1 days back

                                                  What if the anti vaccination thing was started by coffin company

                                                  • Andrew Clarke
                                                    Andrew Clarke  1 days back

                                                    There is no risk (unless your allergic but that’s just something made up by antivaxxers, I think)

                                                    • F.u.c.k Go.ogl.e
                                                      F.u.c.k Go.ogl.e  1 days back

                                                      and go figure the comment section is an echo chamber

                                                      • F.u.c.k Go.ogl.e
                                                        F.u.c.k Go.ogl.e  1 days back

                                                        kruz is now confirmed to be controled op. black list and move on

                                                        • Ultrasound Animations and Letsplays!

                                                          Dont vaccinate your kids,you could kill them
                                                          Just let a doctor do it, dummy!

                                                          • Meme Meme
                                                            Meme Meme  1 days back

                                                            Me: God can we have some of our extinct animals back.
                                                            God: Ok.
                                                            Anti-vaxxers: Makes God accidentally bring measles back instead.

                                                            • Kerbin
                                                              Kerbin  1 days back

                                                              And some idiots will not even watch this, and continue their unvaccinated life.
                                                              What the fuck do you think, Karen?
                                                              Go on, go to that useless Restaurant and eat your shit.
                                                              When you come back, pay the goddamn Babysitter her money.
                                                              She probaly caught the measles too, because of your stupid parenting.
                                                              No wonder why your husband left you.
                                                              When that Babysitter comes home, takes care of his kids, then tomorrow, they all will probaly be infected with fucking measles.
                                                              They also have a chance of dying.
                                                              While you are posting false shit on social media, saying that 'mY kId Is UnVaCcInAtEd AnD hE iS fInE',
                                                              They might die.
                                                              After that, will you say sorry?
                                                              Will you feel sorry?
                                                              Or just complain that the Babysitter is not coming to work?
                                                              And this could all be prevented by a vaccine...
                                                              A. Single. Vaccine.
                                                              Is it THAT hard, Karen?

                                                              • Amelia.mp4
                                                                Amelia.mp4  2 days back

                                                                The 7.9k dislikes are anti vaxxers

                                                                • Mnyz.Ching
                                                                  Mnyz.Ching  2 days back

                                                                  7:09 "so we vaccinated 10'000'000 kids"

                                                                  • FIRESTAR
                                                                    FIRESTAR  2 days back

                                                                    We should isolate anti vaxxers for 10 years and see if they live through it and if they change their minds about vaccines

                                                                  • Milka Bogovac
                                                                    Milka Bogovac  2 days back

                                                                    I actully think i know why this video has such a click-baity title. Its made so that Kurzgesagt can trick Anti-Vaxxers in order to watch this video. And learn that Vaccines actully help us.

                                                                    • Milka Bogovac
                                                                      Milka Bogovac  2 days back

                                                                      @Fredric Bagguette It is not clickbait. But the tiltle sounds like clickbait.

                                                                    • Fredric Bagguette
                                                                      Fredric Bagguette  2 days back

                                                                      Milka Bogovac how is this clickbait?

                                                                  • Milka Bogovac
                                                                    Milka Bogovac  2 days back

                                                                    Wow. Did not know that the human body works like a C&C game.
                                                                    (The more you know :D)

                                                                    • Приморский Маппер

                                                                      Strange, but i am unvaccinated, i have a very weak immune system but i was vaccinated only when i was borned. I never was infected with Flu or any other serious disease except chikenpocks. I do not use vaccines because virus is often mutating, and there is chance to get complications, so if i have a vaccine from flu stamm in 2018, i won't be protected from 2019 stamm, but newborned have to be vaccinated because their immune system is to weak to protect themselves.

                                                                      • ster oids
                                                                        ster oids  1 days back

                                                                        Приморский Маппер You live in Russia where you don't really have to worry about measles outbreaks.

                                                                    • Fein Yep
                                                                      Fein Yep  2 days back

                                                                      well the anti-vaxxers are a part of a grand scheme devised by them old diseases that are making a comeback~

                                                                      • HosterJack
                                                                        HosterJack  2 days back

                                                                        I died laughing at 3:03. Damn you guys are RUTHLESS.

                                                                        • Locket
                                                                          Locket  2 days back

                                                                          Karen who wants the planet to shrivel up and die: I think I should create anti vaccinators so more people die.

                                                                          Dumb people who dont care about their children's safety: YES

                                                                          • Dr Papilla
                                                                            Dr Papilla  2 days back

                                                                            Before I was vaccinated I was sick all the time it was repetitive and annoying taking medications and pills and later in my school they did a vaccination program I told my parents about that and accepted now I get hardly sick.

                                                                            • Rainbow the Dragon Cat

                                                                              Every time I see an anti-vax comment I will reply with just a link to this video because the title will trip them up.

                                                                              • Urpo Oraakkeli
                                                                                Urpo Oraakkeli  2 days back

                                                                                I wasn't vaccinated and i'm perfectly healthy
                                                                                Only thing that has happened is my little brother died to measles. What a weakling xDDD
                                                                                Only strong people don't need vaccines :D

                                                                                • Urpo Oraakkeli
                                                                                  Urpo Oraakkeli  20 hours back

                                                                                  @Fredric Bagguette no u

                                                                                • Fredric Bagguette
                                                                                  Fredric Bagguette  1 days back

                                                                                  Urpo Oraakkeli okay now go away and don’t come back!

                                                                                • Urpo Oraakkeli
                                                                                  Urpo Oraakkeli  2 days back

                                                                                  @Fredric Bagguette is my job

                                                                                • Fredric Bagguette
                                                                                  Fredric Bagguette  2 days back

                                                                                  Urpo Oraakkeli your reply made my day!

                                                                                • Urpo Oraakkeli
                                                                                  Urpo Oraakkeli  2 days back

                                                                                  @Fredric Bagguette says the guy named Fredric Bagguette. Lmao. Btw the joke was that i tried to bait people into thinking i was an antivaxxer. Then when they would click the comments then they would see my other messages. nibba u stuupid

                                                                              • Banu 02
                                                                                Banu 02  2 days back

                                                                                How can anyone be click baited to think it's an antivaxer video lol.
                                                                                It's Kurzgesaht, obviously it will be on a rational side.

                                                                                • eccentricwriter
                                                                                  eccentricwriter  2 days back

                                                                                  Q: How high is the risk?
                                                                                  A: You're gonna die one day anyways so it doesn't matter.

                                                                                  • Erik .Schfr
                                                                                    Erik .Schfr  2 days back

                                                                                    I wasn't vaccinated and I still live so there's that

                                                                                    • Bird?
                                                                                      Bird?  4 hours back

                                                                                      step on a rusty nail, and you wont be fine any longer

                                                                                    • momomo CRONx
                                                                                      momomo CRONx  12 hours back

                                                                                      Hey, how about you go and see someone with horrible viruses and hug them? lets see what happens then.

                                                                                    • Urpo Oraakkeli
                                                                                      Urpo Oraakkeli  2 days back

                                                                                      vaccines cause adulthood