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 • 64 739

  • 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.

    • Jarley
      Jarley  7 days 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  7 days 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.

    • Austin Yang
      Austin Yang  7 days back

      Kurzgesagt – In a Nutshell The only person to actually have sources in the entire comment section.

    • BrettC11B
      BrettC11B  7 days back

      +Rox Paid people or bots, the lot of these post aren't even real people. 0 subs.

  • ur mom gay
    ur mom gay  3 minutes back

    I'm not putting antivirus software on my computer because it could be a scam

    • Ocarinaot 4
      Ocarinaot 4  5 minutes back

      4.4 million views in a week. Impressive. Good on you for using the power of having an audience wisely

      • Ray Grenade
        Ray Grenade  5 minutes back

        also, anti vaxxers do not care about facts. i commented on a page educating them (they told me to do research "sheep"), and got blocked instantly

        • Tuoff
          Tuoff  8 minutes back

          Me and all my siblings have matching scars from when we got vaccinated against swine flu as kids; the injection point became infected and there was a terrible wound with tons of pus and it left a nasty scar.

          • Video Judge
            Video Judge  24 minutes back

            You’ve been awarded 10,000 Nobel prizes

            • Nick Lapallo
              Nick Lapallo  37 minutes back

              10:10 shots fired man, shots fired.

              • Joshua Jobi
                Joshua Jobi  41 minutes back

                anti vaxers are retards like if u agree they are looking at the wrong side , at the 0.01% risk vs the other good side . they are literally killing their children or putting them at risk of death

                • Millicent Dagworth
                  Millicent Dagworth  1 hours back

                  Gunna share this on antivaxxers groups on facebook. Not an antivaxxer myself but I know people will believe anything they read on the internet. You're doing a great job trying to get people informed!

                  • Daetwaan uchiha
                    Daetwaan uchiha  2 hours back

                    Bruh, just use an anti virus.😤

                    • Alexandre A
                      Alexandre A  2 hours back

                      This video is just amazing, every one should watch this ! That was an enormous job, but of high quality. Thank you !!

                      • Hassan Voyeau
                        Hassan Voyeau  2 hours back

                        This video is pinned on one vaccine BUT there are hundreds? of vaccines. So what I wanted to hear was there are rankings of vaccines (we are dealing with parameters). Some countries just can't afford all vaccines and all the time BECAUSE other budget amounts will dwindle. So, the formula and decision making is more than what this video has covered.

                        • Piekenier
                          Piekenier  2 hours back

                          I liked the video however I noticed you guys were really uncomfortable to say that in extremely rare occasions vaccines do appear to kill children. We really shouldn't shy away from naming those things as it would allow a better comparison with the number of children killed in the non-vaccine scenario.

                          • Ripclowe
                            Ripclowe  2 hours back

                            4:45 I love how you made a reference to the MCU

                            • Zarghoen Tanay
                              Zarghoen Tanay  2 hours back

                              VACCINES ARE GOOD

                              • Alpha Ceph
                                Alpha Ceph  2 hours back

                                an Anti-AntiVax video which uses a GTA V meme in 3:07 , can you be cooler than Kurzgesat ? never .

                                • Ali Akber
                                  Ali Akber  3 hours back

                                  A child just contracted polio in both legs after taking the polio vaccine, he has healthy before taking the vaccine. India is not polio free for sure.

                                  • mrmousecat
                                    mrmousecat  3 hours back

                                    Your source?

                                  • Minetendo
                                    Minetendo  3 hours back

                                    Ali Akber proof or it didn’t happen

                                • Bullz Eye
                                  Bullz Eye  3 hours back

                                  when youre autistic and you get another vaccine

                                  level up!

                                  • Karenni Boy
                                    Karenni Boy  3 hours back

                                    Thank god my parents aren’t anti vaxxers

                                    • Louis Ruiz
                                      Louis Ruiz  3 hours back

                                      So I guess I was just born with minor autism

                                      • Adam Bond
                                        Adam Bond  3 hours back

                                        Help us, science sources, Americans don't understand the difference between correlation and causality.

                                        • Mummnic Mummnic
                                          Mummnic Mummnic  3 hours back

                                          With a hugeee magnefying glass...
                                          MAGNEFYING GLASS TILTED RIGHT🔎

                                          Only legends will get that joke

                                          • Señor Quack
                                            Señor Quack  3 hours back

                                            lol earth-199999 reference to the mcu I just noticed it even has the avengers tower lol

                                            • The Little Potato Productions

                                              *BREAKING NEWS*
                                              Anti-vaxxers expose their children to measles to prevent it. Also people are facepalming more.

                                              • I'm Bored
                                                I'm Bored  3 hours back

                                                The 7.2k who disliked this were anti-vaxxers

                                                • xorizontal
                                                  xorizontal  4 hours back

                                                  this video was very necessary

                                                  • Kali Ope
                                                    Kali Ope  4 hours back

                                                    kurzgesagt went off

                                                    • Dorothy Isidro
                                                      Dorothy Isidro  4 hours back

                                                      The first few scenes looked like a video game.

                                                      • Chantel Chandler
                                                        Chantel Chandler  4 hours back

                                                        Yes. Because I'm going to believe the very same government who's been sterilizing women without their knowledge in Africa for the past 30 years through vaccines. The very same government who purposely makes people sick so they can make more money on our illness. I love America, but I don't trust the government and I don't trust the CDC. They would rather us be sick. They inject you with at least 5 different things 30 seconds after you're born. These vaccines have mercury in them. You're not supposed to eat salmon because it contains mercury, which according to the exact same governing body will cause a slew of health problems... but it's okay to inject MERCURY in your bloodstream where crosses the blood-brain barrier? A pregnant woman isn't supposed to eat sushi because of the Mercury, but it's okay for her to get mercury in her bloodstream. It's okay to give a newborn baby up to 60 different shots of mercury before it's 3 years old? No. I'm an anti vaxxer I will not vaccinate my children unless I absolutely need to and I will take each and every single vaccine into Deep consideration about my local situation at that time. If there's an actual need for it I will weigh the risk of my child and all the shit that's going to be injected into my child. I'm not going to not vaccinate my all the shit that's going to be injected into my child. I'm not going to not vaccinate my kids Purely out of stubbornness. I will take everything into consideration. But they will not be vaccinated for certain things at all. Ever. The flu? No. Chickenpox? No. but there will be things I will consider depending on where I live at the time

                                                        • MiMosa
                                                          MiMosa  47 minutes back

                                                          Valuable Source and serious studies about that please

                                                        • MiMosa
                                                          MiMosa  48 minutes back


                                                        • Pbbt Kms
                                                          Pbbt Kms  3 hours back

                                                          Chantel Chandler they took mercury out of vaccines a long time ago
                                                          I'd do some research

                                                      • Assasin Bear
                                                        Assasin Bear  4 hours back

                                                        My 2 kids are beautiful
                                                        Edit: 1 kid

                                                        • Andrew MT
                                                          Andrew MT  4 hours back

                                                          Let's see. I have a fear of needles or something and ya know what? I still get myself vaccinated even though I almost faint and sometimes barf when i get the shots. Please, anti-vaxers (and everyone), get vaccinated to make the world a better place.

                                                          • ShadyXV
                                                            ShadyXV  5 hours back


                                                            • Bassem B.
                                                              Bassem B.  5 hours back

                                                              You should have went more detail into the alleged link between vaccination and autism since that's a major talking point for anti-vaxxers.

                                                              • Attractive Status
                                                                Attractive Status  5 hours back

                                                                please make a game with this art style.....

                                                                • Will Van Moss
                                                                  Will Van Moss  5 hours back

                                                                  Educate the crap out of the people!!! YES Kurzgesagt!
                                                                  Anti-vaxxers, anti-medicine folks, people who fear migration all have one thing in common: they are highly emotional and have a fixed belief that is hard to shatter. We can try to educate them, but that's all. If they still don't belief what is real, then we best just let them be and not pay them ANY attention.

                                                                  • John Thomas
                                                                    John Thomas  5 hours back

                                                                    Da Phoenix how’s it feel to be put down boy

                                                                    • Ømega !
                                                                      Ømega !  5 hours back

                                                                      Unvaccinated kid: *exists*
                                                                      Anti-vax parents: I'm about to end this *kid's* whole *life*

                                                                      • Kool Guy
                                                                        Kool Guy  5 hours back

                                                                        Ahh, the controversial content I crave for here on YouTube 😊

                                                                        • BigNewGames
                                                                          BigNewGames  5 hours back

                                                                          The video does not mention several autoimmune diseases that result from being vaccinated, Lupus, rheumatoid arthritis, Colitis, ankylosing spondylitis, etc. Sure those diseases do not kill a person but they can be severe, lead to debilitating conditions which causes the child to suffer throughout their life, become disabled and dependent on welfare, costing taxpayers trillions of dollars to foot their medical expenses. It's like playing Russian roulette with your child's health.

                                                                          • BigNewGames
                                                                            BigNewGames  2 hours back

                                                                            +Minetendo The US government is trillions in debt. One day prior to 9/11/01 Donald Rumsfeld announced that the pentagon was missing 2.3 trillion dollars from their books. He said they were going to do an investigation. Today the US total debt is almost 74 trillion dollars. Out of that debt as of Dec. of 2018, 21 trillion is missing from their books.

                                                                            Note: I wrote "costing taxpayers trillions" was totals for life long healthcare not a yearly cost. A person with such a disability would suffer for years on end. Not just one year!

                                                                          • Minetendo
                                                                            Minetendo  2 hours back

                                                                            You say trillions when most governments don’t even reach a trillion dollars in taxes a year

                                                                          • DuckCrisis
                                                                            DuckCrisis  3 hours back

                                                                            +Candy and Darkside also the chances of getting these side effects are minor; if you expose your children to life-threatening illness, rather than a small chance of these child effects, you're an asshole.

                                                                          • Candy and Darkside
                                                                            Candy and Darkside  3 hours back

                                                                            Those aren't caused by vaccines, they're caused by your immune system accidently recognizing your body as a threat.

                                                                        • Morbi Bros
                                                                          Morbi Bros  5 hours back

                                                                          Kurzgesagt should make a video game. Like if you agree.

                                                                          • Everything Cool
                                                                            Everything Cool  5 hours back


                                                                            • amsyar zerø
                                                                              amsyar zerø  5 hours back

                                                                              "Feelings are often immune to facts."

                                                                              Ben Shapiro would like a word with you

                                                                              • Everything Cool
                                                                                Everything Cool  5 hours back

                                                                                People should have to have had all their jabs before entering England that is my personal opinion especially as we're leaving the EU or be forced to have them when they get here

                                                                                • absaar alam
                                                                                  absaar alam  6 hours back

                                                                                  WHY IS NOONE TALKING ABOUT 3:05

                                                                                  • Sam The Mountain Egg Lim !

                                                                                    a n t i - v a x m o m s

                                                                                    • TBalpha22
                                                                                      TBalpha22  6 hours back

                                                                                      so what I’m getting at is that memory cells are basically Vietnam veterans but microbial?

                                                                                      • farefouse olly
                                                                                        farefouse olly  6 hours back

                                                                                        I wish they would just address the other sides concerns rather than just throwing numbers at them.

                                                                                        • Adam Webb
                                                                                          Adam Webb  6 hours back

                                                                                          Is that not one in the same. They used numbers to address the concerns. Massive shock: the risks of contracting measles MASSIVELY outweigh the risks of vaccines.

                                                                                      • darthvincor
                                                                                        darthvincor  6 hours back

                                                                                        A very predictable opinion, Kurtzgesagt.

                                                                                        Let's not forget the fact that vaccines are made by companies, that alone makes it fishy. Think of what an awesome product they have: something everyone believes you ought to have, billions of customers, often mandated by governments.

                                                                                        Have you ever looked at the ingredients of a vaccine? I have, and it generally contains three items:
                                                                                        1. vitamins, minerals and amino acids. Great.
                                                                                        2. deactivated disease. Necessary.
                                                                                        3. Formaldehyde. A known carcinogen.

                                                                                        And more of them are 'required'. There are simply too many vaccines and too many boosters, because selling them once isn't enough.

                                                                                        • Pbbt Kms
                                                                                          Pbbt Kms  3 hours back

                                                                                          The ingredients don't exactly matter. Just a heads up, EVERYTHING can be poisonous and deadly depending on the dosage.
                                                                                          Most deadly things in vaccines are either not even there anymore (like mercury), or are in such a low dosage it doesn't even matter

                                                                                        • Cade-o
                                                                                          Cade-o  6 hours back

                                                                                          So? When you are younger you usually need more than one periodically because your immune system builds on itself over time. Now if you cant split a couple of necessary bucks for your child, that means you probably shouldn't have had a child in the first place. Look, I can see your concern otherwise about big companies being greedy, (that is true) but there isn't too much you can do at an immediate time other than vaccinate your child! Not just for the safety of your own child, but also for everyone else's children!