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 • 73 363

  • 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  3 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!

  • Brandon Willis
    Brandon Willis  26 minutes back


    • Samuel Skala
      Samuel Skala  2 hours back

      Another note is that your body does more harm to itself than vaccines do, the body sometimes sends cells that can harm healthy cells to fight bacteria where all vaccines do is put an unimaginably small hole through the skin and maybe kill 1-10 cells

      • You Also you
        You Also you  2 hours back

        Vaccines practice our immune systems for the real thing, infection. Vaccinate your kids, your doing a favor for us and them, unless you cant.

        • Samuel Skala
          Samuel Skala  2 hours back

          Although it seems very aggressive I'm ready to opt for argent C-22, A plan I had developed that involves a warning message delivered to a city to vaccinate immediately and if unable to do so then leave. if anyone refuses they will be forcibly removed and if anybody who can be vaccinated stays but doesn't want to get ones will be extremely pressed to vaccinate. the reason for this is because at the final stage a modified virus will be sprayed into the area, this virus does not mess around and all who have an unvaccinated immune system will die. although there will be heavy losses in the vaccinated side the unvaccinated will get what they had coming.

          • Bob Oznek
            Bob Oznek  5 hours back

            What part of "autism is developed at birth" do antivaxxers not understand

          • Happy Catuts
            Happy Catuts  8 hours back

            The only reason anti vaxxers are alive is ethier they got vaccines themselves or herd immunity is doing them well which is awful bc we dont need retarded people like this

            • Born2neverdie
              Born2neverdie  8 hours back

              lol i am havin a Nerd attack , i could live in this youtube channel forever. Good Job!!

              • Valentino III
                Valentino III  8 hours back

                "It's not the science, it's what we do with the science!"

                • David Lee
                  David Lee  10 hours back

                  Ooh look
                  They explain it to you like your children. You people are sheep. A product of the public school system's dumbing down of the population.

                  You don't bother to read about the Cutter incident, you don't know who doctor Oschner was. You have no idea who Bernice Eddie & Sarah Stewart were.

                  You don't bat an eye to the Fact that they proved that SV40 causes cancer in mammals & did just that when the epidemic of cancer started 30 years after those children were "inoculated" with an unknown number of simien viruses because the polio vaccine was grown on the kidneys of monkeys.

                  • Richard Gregory
                    Richard Gregory  5 minutes back

                    It must be fun connecting random events and forcing them into a pattern mandated by your conspiracy theory. One example the so called "cancer epidemic" is a combination of two things: first, people are living much longer because they aren't dying of other things and cancer is mostly a disease of age (the rates for all but a few rare cancers rise with age, particularly 50+) and second due to unhealthy lifestyles which in the past was high rates of smoking but is now more obesity and lack of exercise.

                  • Juicy_Shitposts
                    Juicy_Shitposts  2 hours back

                    dude ok dont vaxx youll just die like a tard and we'll be rid of your stupid ass
                    nobody cares what you have to say

                • tao chen
                  tao chen  10 hours back


                  • Kevin Xie
                    Kevin Xie  12 hours back

                    🅱️ cell

                    • Miss Boo
                      Miss Boo  14 hours back

                      Everybody gangsta till the voice actor gets serious at the end

                      • Happy Catuts
                        Happy Catuts  15 hours back

                        I get loopy and sleepy like very very sleepy. After vaccines its not that nice to feel like that but i enjoy the sleep ;w;
                        Exuse to sleep >:3

                        • Happy Catuts
                          Happy Catuts  15 hours back

                          That live vaccine monster looks scarry :(

                          • Happy Catuts
                            Happy Catuts  15 hours back

                            My immune system is strong i got all my vaccines that i need. I need to get a booster when im 17 tho.

                            • No way
                              No way  15 hours back

                              I really recommend you check out Vaxxed on Facebook. Maybe do a part 2 on this video when you accuire more knowledge on the subject. Stick to space stuff, humans have no manipulation in that like the people that make billions per year with vaccines and then some more billions when they are the ones that own the medical facilities that treat you from the damage they caused themselves.

                              • Quaker S
                                Quaker S  17 hours back

                                I just vaccinate

                                • Michael Lucas
                                  Michael Lucas  18 hours back

                                  Adsylrod6570 ... Yes, vaccines actually cause a serious disease called being alive with a terrible, incurable, and unnecessary reaction.

                                  • PeeTa 555
                                    PeeTa 555  20 hours back

                                    3:06 gta wasted

                                    • CesTech
                                      CesTech  20 hours back

                                      All the anti-vaxxers needed a fucking animated video with a child-like explanation to understand they're wrong... (Well, they still won't admit it though, most likely.)

                                      (Note: Nice video- That clickbait to lure the Karens in here. Huge like from me. :P )

                                      • Yoraisha N
                                        Yoraisha N  23 hours back

                                        I'm looking at you, Karen.

                                        • SCOOBADABOOP SCIBBIDIDOB

                                          Anti-vaxxer: but the Goverment hides facts?! Everyone that isn't Pro-Disease: Please, watch this video. You are making the Black Plague The sequal

                                          • Pizza Time
                                            Pizza Time  1 days back

                                            Kinda sad that this video have to be made

                                            • PlayBud101
                                              PlayBud101  1 days back

                                              This literally bamboozles and clickbaits antivaxxers.

                                              • Michael Lucas
                                                Michael Lucas  1 days back

                                                Never forget that the same people who are busy saving the lives of premature infants are also busy pulling babies out of their mother's body in pieces. All medical professionals are morally flexible. Morally flexible people will do anything for money so stay away from them with your children.

                                                • Michael Lucas
                                                  Michael Lucas  16 hours back

                                                  @Richard Gregory ... It is perfectly understandable that people cannot believe that the medical profession could be so corrupt. Most human beings are decent and abide by the law. It is out of their range of personal experience to come in contact with greed and depravity of epic proportion.

                                                  Are you familiar with the town of Leicester in the East Midlands area of the UK? It was the center for Anti-Vaccination protest against the mandatory Jenner vaccine. After the smallpox pandemic of 1872 which was the worst ever recorded in history, they completely lost faith in Jenner. By 1877 they had developed their own method for dealing with smallpox.

                                                  They finally came to realize that smallpox was not spread by water, air, or a fly, tick, flea, or mouse. It spread from person to person contact and in no other way. So what they did was institute a total surveillance of their entire population which was 100,000 at that time. Any case of suspected smallpox was immediately reported to the Medical Officer who came and examined the person and isolated them in hospital if confirmed. All contacts the person had were placed under quarantine for 17 days in their own home. That was the incubation period for the symptoms of smallpox to appear. If they appeared the person was also sent to hospital isolation.

                                                  They completely disregarded vaccination. With those three principle components, isolation, quarantine, and the refusal to vaccinate any more children, they never had another outbreak of smallpox that originated within the town. They had several small incidents from visitors to the town who were unknowingly infected but following procedure to report smallpox victims immediately to the Medical Officer, the outbreaks were all quickly stopped. This is recorded history of the town of Leicester. Why don't YOU know about it as an Englishman and I do living in New York?

                                                  It is because all true history of Vaccination is suppressed. It was the Leicester Method that the World Health Organization used to eradicate smallpox throughout both hemispheres. But they only mention the useless Jenner vaccine which did nothing but spread other diseases as bad as syphilis and leprosy. They never let the Leicester Method be publicly and widely known.

                                                  Now you tell me how all the authorities in the world keep silent about this. If you want to read the book that tells the whole story it's available to read Online from the Open Library. Just type in J T Biggs Leicester: Sanitation versus Vaccination. YouTube is clamping down on the truth and will no longer allow a direct drag & drop link. DO YOU START TO SEE HOW WE WHO KNOW THE TRUTH ARE SUPPRESSED?

                                                  No one else but you is going to read this long comment. Two lines is max for the dumbed-down people of the INTERNET PRO VAX SITES.

                                                • Richard Gregory
                                                  Richard Gregory  1 days back

                                                  Vaccinations are universally supported by countries with socialised healthcare - that's most of Europe, for example - so your sinister doctor conspiracy is bullshit because here in Europe medicine is not run on a profit basis. There would be no point whatever in vaccinating people to make them sick so you can profit by treating them, because the system doesn't work that way here. In fact, you'd avoid making people sick because they are just a cost burden to the system. I guess in America with it's medicine system that is focussed on profits and not medicine, it;s easy to have these paranoid thoughts about doctors. But in civilised parts of the world it doesn't work that way. Healthcare is funded from taxation so any "conspiracy" about vaccines would have been exposed long ago. The UK NHS for example, would stand to save huge amounts of money by reveaing that vaccines don;t work and even make people sick: it would just sto vaccinating and broadcast to the whole world about it. Yet oddly enough....the NHS is a pro-vaccine as you will find anywhere. I wonder why?

                                              • Alpha Night fury
                                                Alpha Night fury  1 days back

                                                4:14 bottom left corner 😂🤣😂🤣

                                                • Alpha Night fury
                                                  Alpha Night fury  1 days back

                                                  I’ve been vaccinated, do your worst, Karen

                                                  • Itan 78
                                                    Itan 78  1 days back


                                                    Megalovania plays

                                                    • Wyatt Campbell
                                                      Wyatt Campbell  1 days back

                                                      It's okay to be wrong as long you're open to the truth and trust in the scientific method.

                                                      • Garen Might
                                                        Garen Might  1 days back

                                                        I love how it seemed as it was gonna give a point to vaccines deniers at first, but actually no.

                                                        • thegamecracks
                                                          thegamecracks  2 days back

                                                          Memory Cell: "Remember when we fought that deadly bacteria for weeks and nearly killed us?"
                                                          Another Memory Cell: "No, but I remember when we had that spoiled food and vomited for a good two hours."
                                                          Me: "Shouldn't you be like, traumatically horrified?"

                                                          • nafslee
                                                            nafslee  2 days back

                                                            "Feelings are often immune to facts" - so true

                                                            • niels van Huizen
                                                              niels van Huizen  2 days back

                                                              Anti-vaxxers: *use this video as proof*
                                                              Kurgezagt and the internet: congratulations you played yourself.

                                                              • Noah Robson
                                                                Noah Robson  2 days back

                                                                WTF I don't know if vaccines are safe or dangerous?

                                                              • I Am Kocka
                                                                I Am Kocka  2 days back

                                                                His point at the end is very good. We are so used to safety and immunity from everything that we forget how dangerous these diseases really are.

                                                                • KATUS the cactus
                                                                  KATUS the cactus  2 days back

                                                                  The comments are gonna be a war zone

                                                                • neelkanth sikdar
                                                                  neelkanth sikdar  2 days back

                                                                  People who dislike are karen.

                                                                  • saint pendon
                                                                    saint pendon  2 days back

                                                                    Anti-vaxxers: many died cause of vacines
                                                                    Me: *omae wa moushindeiru*

                                                                    • JaveDaPro
                                                                      JaveDaPro  2 days back

                                                                      Anti vax gang

                                                                      • Aaron
                                                                        Aaron  21 hours back

                                                                        The cemetery is your hangout spot

                                                                    • 성이름
                                                                      성이름  2 days back

                                                                      정말 과학적이고 이성적이고 통계적이고 합리적이다 한국에 맘충페미년들이 필수로 봐야할 영상인

                                                                      • iwantdie
                                                                        iwantdie  2 days back

                                                                        1:59 does this mean I can just catch tons of infections and never get ill from them again?

                                                                        • Richard Gregory
                                                                          Richard Gregory  2 days back

                                                                          If by that you mean if you get infected and recover, you are then immune to getting that infection again...well, mostly, yes. Once your immune system has encountered something liek the measles virus, it builds a specific defence against it. This defense is far more effective than the generalised defence mechanisms the immune system uses against something it has never met before. Measles for example: when you first encounter the virus (by being infecte dor having the vaccine) you have no specific defence against it. Your body deploys it's generalised defence; this is effective against all type of invader - and it is often sufficient on it;s own. In the case of measles (and many other diseases) this is not the case. Then the general troops fight an holding action, this gives the body time to create a specialised defence tailored specifically for that invader: and no other. Your body retains a memory of that invader, so if it meets it again, the specialised defence is available immediately, and it is so deadly that you are what we call "immune". The inader is destroyed before it can cause trouble. For most diseases this immunity is life long. For some it is not. Moreover, some diseases like influenza there are many different variants: if you catch influenza type A you are immune to it, but you can still catch influenza type B. These viruses mutate rapidly to evade the immune system. Tha is also why you catch the common cold repeatedly throughout your life.

                                                                      • SNEEZE NATION
                                                                        SNEEZE NATION  2 days back


                                                                        • SNEEZE NATION
                                                                          SNEEZE NATION  2 days back


                                                                          • Reklaw
                                                                            Reklaw  2 days back

                                                                            I’m sad more people don’t see this.

                                                                            • Anthony Draws For You
                                                                              Anthony Draws For You  2 days back

                                                                              Hey remember polio and how nobody gets it anymore?

                                                                            • Atomiic
                                                                              Atomiic  2 days back

                                                                              God, this video is the perfect bait for antivaxers. The thumbnail and title perfectly attract the karens. You add an enticing hook about the "risks" and then go into how vaccines are an amazing creation. 10/10