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 • 66 327

  • 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.

    • jsmyth024
      jsmyth024  2 days 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  4 days back

      Kurzgesagt – In a Nutshell epic

    • joel marin
      joel marin  4 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  2 weeks back

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

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

  • Fixit FastNow
    Fixit FastNow  3 minutes back

    ya don't need no vaccines, Bill Gate says they are for culling the population, He thinks we need to kill about 95% of us.

    • eeeaten
      eeeaten  11 minutes back

      when you make antivaxxer jokes that have been made a thousand times already in the comments and think you're being clever.

      • DaddyOCherrio
        DaddyOCherrio  2 hours back

        I don't care if the Karens die

        they are a burden to this world

        • carlos benji
          carlos benji  3 hours back


          • june greenfield
            june greenfield  3 hours back

            Kurzgesagt: *creates video about anti vaxx people but lures them and educates them*

            Outstanding move

            • june greenfield
              june greenfield  3 hours back

              Unvaccinated kid: exists

              Almost extinct diseases: yeheah boy

              • june greenfield
                june greenfield  3 hours back

                *insert anti vaxx mom comment here*

                • bazoo513
                  bazoo513  3 hours back

                  You didn't mince words around 10:00, and rightfully so. Good work!

                  • Mikko Tenhunen
                    Mikko Tenhunen  3 hours back

                    Best videos so far

                    • Lordof Music 420
                      Lordof Music 420  4 hours back

                      send this to r/vaxx happened

                      • Muh im man Muhtadi
                        Muh im man Muhtadi  4 hours back

                        Our next step might be injecting memory cell genome directly to human genes..

                        • mawaddah ar
                          mawaddah ar  5 hours back


                          • Randomness with Micayla

                            This is clickbait

                            But it's the best clickbait ever

                            • Tai Perez
                              Tai Perez  5 hours back

                              Unfortunately, I highly doubt this video will reach many anti-vaxxers, so for now this comment section is just a circlejerk of faux intellectuals who think they’re smart for stealing old antivaxx jokes from reddit.

                              • fogsmash
                                fogsmash  5 hours back

                                i had a strange feeling the entire time in my right wrist while watching this and its uncomfortable

                                • LEMONS Patusky
                                  LEMONS Patusky  6 hours back

                                  7.4k people disliked the video but died of measles before they could undo

                                  • Raphael Souza de Melo
                                    Raphael Souza de Melo  6 hours back

                                    Plot twist: anti-vaxxer just want the human species to go extinct.

                                    • Raphael Souza de Melo
                                      Raphael Souza de Melo  6 hours back

                                      Vaccines are bad for the planet. They cause humans.

                                    • Abby Voravudhi
                                      Abby Voravudhi  7 hours back

                                      when they said 95% of the people around you should be vaccinated, that made me want to go to school and be like "who in here is not vaccinated"

                                      • Ahmet Yakar
                                        Ahmet Yakar  7 hours back

                                        Guys you are just great

                                        • Liam Smiley
                                          Liam Smiley  8 hours back

                                          What does it mean to ignore self reporting and why do you ignore it. Im not arguing just curious and not very familiar with vaccines and vaccine terminology.

                                          • Geert Schaaij
                                            Geert Schaaij  9 hours back

                                            How to clickbait anti vaxxers

                                            • Bloggman
                                              Bloggman  11 hours back

                                              "They kill healthy children that are just unlucky", because their Mom is called Karen.

                                              • hen ko
                                                hen ko  11 hours back

                                                Bill & Melinda Gates refuse to vaccinate their own children dr Martin Gore popped minutes after getting his toxic fix but ignorance is best of all until it comes the time to pay for

                                                • eeeaten
                                                  eeeaten  10 minutes back

                                                  you've been conned.

                                              • Tanveer Fatima
                                                Tanveer Fatima  11 hours back

                                                A medicine board somewhere in the world:
                                                The anti vaxxers are gaining power
                                                Another member: I have a solution,
                                                instead of calling them anti vaxxers we should call them pro disease!

                                                • Dyandra Clevia
                                                  Dyandra Clevia  12 hours back

                                                  So... Vaccines are basically injections filled with bacteria that might harm us...and we use them so our immune system get used to them and make new memory cells, oh.. Ok... Now we have an even more reason to be scared of vaccines

                                                  • Future Mapping
                                                    Future Mapping  45 minutes back

                                                    You explained in your comment why we need vaccines and did a complete 180 in the last sentence

                                                  • Dyandra Clevia
                                                    Dyandra Clevia  4 hours back

                                                    +James Dolezal Yeet yeah thats why i commented

                                                  • James Dolezal Yeet
                                                    James Dolezal Yeet  5 hours back

                                                    Did you watch the video

                                                  • Dyandra Clevia
                                                    Dyandra Clevia  5 hours back

                                                    +Dreadking Rathalos ok first of no i wont cherry pick at your facts dont worry, and second thank you for the clarification

                                                  • Dreadking Rathalos
                                                    Dreadking Rathalos  6 hours back

                                                    Let me break this down.
                                                    In _live_ vaccines, a dying or severely weakened form of a virus is put into a vaccine, and injected into the body. A person will often experience mild syptoms of the virus before their body analyzes and creates antibodies for the virus.
                                                    When a real, unweakened, or "wild" version of the virus attacks, the bod will have a much easier time fighting it off.

                                                    *_Side note- while the ingredients uses to weaken the vaccine are poisonous, they are in such little concentration that the body can easily deal with it with no harm done to you._*

                                                    Don't attempt to cherry pick facts from what I've said, and if you do, your argument is automatically invalidated.

                                                • 2020 Lollipop Christmas
                                                  2020 Lollipop Christmas  13 hours back


                                                  • BEASTINNATIVE
                                                    BEASTINNATIVE  14 hours back

                                                    Fucking N U K E D

                                                    • ABDI ANIMATION
                                                      ABDI ANIMATION  15 hours back

                                                      I have no vaccines! I'm happy!

                                                    • Whirlwind12 GMD
                                                      Whirlwind12 GMD  15 hours back

                                                      I can't find antivaxxers. I will pretend to be one. This should be fun.

                                                      Stupid people looking at this video... it isn't even real! Vaccines have loads of harmful ingredients in them such as Aluminium, Taste improvers (I am not even joking, that's in there) Thiomersal <--- THATS A TYPE OF MERCURY, and GMO's. We should be ALL NATURAL
                                                      Be organic as much as possible! Wash your hands, be hygienic. Big pharma is poisoning us and we will all be autistic!

                                                      • Denis Danger
                                                        Denis Danger  2 hours back

                                                        +Whirlwind12 GMD anti vaxxer = Stupidness

                                                      • Whirlwind12 GMD
                                                        Whirlwind12 GMD  3 hours back

                                                        James Dolezal Yeet youre supposed to reply like that. I am an anti vaxxer (not actually) come at me

                                                      • James Dolezal Yeet
                                                        James Dolezal Yeet  5 hours back

                                                        +Denis Danger she's joking

                                                      • Denis Danger
                                                        Denis Danger  10 hours back

                                                        no one has been able to prove it

                                                    • jsmyth024
                                                      jsmyth024  16 hours back

                                                      The idiocy in this comments section is absolutely staggering. You guys REALLY think this video is educational? I bet you think Bill Nye and Myth Busters are just peachy and have an "I fucking love science" t-shirt, dontcha? You know what feels even better than acting like you're smart? Actually doing your research and knowing what you're talking about.
                                                      But you know what's easier than thinking for yourself? Letting other people think for you. Then you make "savage" comments about people who dare to disagree, while projecting your stupidity onto them(by calling them stupid).
                                                      Hell, most of you haven't even been able to read long enough to make it to the end of this comment. TL;DR! LOL! But if you have, I'll commend you and ask you not to believe me. DO your own research and particularly, look into the work of Dr. Shoenfeld. His resume and qualifications are so extensive that I can't even post it all without copy/pasting, and that gets my comments deleted. He's dedicated his entire life to studying autoimmune diseases. He says vaccines are causing them when you have the right genetics for it. That's why not everyone gets them. He has videos on youtube. You can read his qualifications there(one being the HEAD CHAIR of medicine at TEL AVIV university(the most prestigious university in Israel and top ten in the world outside of the US). Over 1600 published papers and he's been cited by professionals over 20,000 times. He's no quack. Look into it. Or keep letting other people think for you and hope you never lose a loved one to chronic illness that you could have stopped if you weren't so damn lazy/distracted/willfully ignorant.

                                                      • Whirlwind12 GMD
                                                        Whirlwind12 GMD  3 hours back

                                                        d3ds1r the programmer several times. yes

                                                      • jsmyth024
                                                        jsmyth024  6 hours back

                                                        Yeah, no, I actually read the studies and listen to what these men have to say and think about it. I ask myself, does it make sense to me? Just because I recommend someone's work, doesn't mean they're thinking for me.

                                                        At least one of you took the time to look into it. If you don't agree with it, then that's your descision.

                                                      • jsmyth024
                                                        jsmyth024  6 hours back

                                                        +Andrés González Does that usually work on people? If anyone takes your word over one of the TOP MEN IN THE ENTIRE WORLD, then they're fools and I really feel sorry for them. Not tritely, but I honestly feel bad for them because they're gonna suffer in life.

                                                      • d3ds1r the programmer
                                                        d3ds1r the programmer  9 hours back

                                                        Whirlwind12 GMD have you watched the video?

                                                      • Andrés González
                                                        Andrés González  9 hours back

                                                        "Do you own research and specifically look up this specific doctor" hahahahahaha
                                                        Shoenfeld has presented no vigorous clinical or epidemiological evidence supporting his claims.
                                                        There are many rigorous studies that directly contradict the ridiculous hypothesis of that Dr

                                                        Your comment is nonsense

                                                    • Harvey Sun
                                                      Harvey Sun  19 hours back

                                                      Can you please make a video about a black hole vs everything in the universe? Thanks!

                                                      • Rio Agustian
                                                        Rio Agustian  19 hours back

                                                        _"One, since video started"_


                                                        • PixelizedKitten
                                                          PixelizedKitten  20 hours back

                                                          Wtf everyone... I support every antivaxxer out there.

                                                          It’s survival of the fittest, the less spawns they have, the better.

                                                          • James Dolezal Yeet
                                                            James Dolezal Yeet  5 hours back

                                                            +Shizu ^

                                                          • Shizu
                                                            Shizu  9 hours back

                                                            The antivaxxer parents are vaccinated most of the times. It's the innocent children that die the most

                                                        • Ryan Aint Gamin'
                                                          Ryan Aint Gamin'  20 hours back

                                                          the 7.4k people who disliked are the anti vaxxers that got jabaited by the clickbait title that “proves their point”

                                                          • panggop jio
                                                            panggop jio  20 hours back

                                                            I wanna bet $600 that all the dislikes on tgis video are anti-vaxxers

                                                            • Whirlwind12 GMD
                                                              Whirlwind12 GMD  15 hours back

                                                              *Dislikes video and isn't an antivaxxer*

                                                              *_pay up, sucker_*

                                                          • PhantomGamerHD
                                                            PhantomGamerHD  20 hours back

                                                            3:06 Wasted

                                                          • Evan Thomas
                                                            Evan Thomas  20 hours back

                                                            Unfortunately, one of the devastating conditions I received from big pharma as a vaccine injured child, I've been diagnosed with:
                                                            Living over the age of five
                                                            Not dying in measles outbreaks
                                                            Not being sick constantly
                                                            Being unable to spread deadly disease to those who are unable to get vaccinated

                                                            Please pray for me 😭😭😭 It's difficult waking up every day to find out that I'm not going to die of easily preventable disease.

                                                            • Musicman928
                                                              Musicman928  21 hours back

                                                              Came here for triggered anti-vaxxers, was disappointed ☹️

                                                              • Zyzynx
                                                                Zyzynx  21 hours back

                                                                Anti-Vax mom:Clicks on video
                                                                Kurzgesagt:You fool. You fell victim to one of the classic blunders.

                                                                • Plague Seeker
                                                                  Plague Seeker  22 hours back

                                                                  Overpopulation is the biggest side effect of vaccines.

                                                                  • Don Voltonus
                                                                    Don Voltonus  22 hours back

                                                                    One note for the creator of the vid, you should also take care WHO give you vaccines. Under-trained pharmacists have had a few cases of accidentally injecting joints with flu-shots, and causing permanent damage.

                                                                    • Shizu
                                                                      Shizu  4 hours back

                                                                      +James Dolezal Yeet giving*

                                                                    • James Dolezal Yeet
                                                                      James Dolezal Yeet  4 hours back

                                                                      I personally was given the wrong vaccine. But this video mainly looks at vaccines themselves, not the dumbasses behind making them.

                                                                    • Shizu
                                                                      Shizu  9 hours back


                                                                  • b4lt4z4rG
                                                                    b4lt4z4rG  22 hours back

                                                                    Bill & Melinda Gates refuse to vaccinate their own children
                                                                    dr Martin Gore popped minutes after getting his toxic fix

                                                                    but ignorance is best of all until it comes the time to pay for it

                                                                    • Tautologist
                                                                      Tautologist  21 hours back

                                                                      The story about Bill Gates not vaccinating his kids is from a writer for one of the most infamous misinformation news websites on the internet. It's called "YourNewsWire" - look it up. If you want to believe that fake news then that really shows who's ignorant here. Also, the Martin Gore tragedy, while sad, is not some unexpected phenomena. Everyone knows that, in rare cases, vaccines can cause some serious side effects, especially for someone Gore's age. The thing is, the risks involved with the yellow fever vaccine that he died from are much less serious then the disease it prevents.

                                                                  • The sick Cichled
                                                                    The sick Cichled  22 hours back

                                                                    Can you debunk flat earth please
                                                                    Please vote one like one vote one dislike one less vote

                                                                    • Sanhinda Peiris
                                                                      Sanhinda Peiris  15 hours back

                                                                      +Whirlwind12 GMD yeah for me it's like the lesser of two stupidities...

                                                                    • Whirlwind12 GMD
                                                                      Whirlwind12 GMD  15 hours back

                                                                      People actually have reasons for being antivaxx, but plain stupidity is being a flat earther.

                                                                    • Sanhinda Peiris
                                                                      Sanhinda Peiris  18 hours back

                                                                      +Rui Wang agreed...

                                                                    • Rui Wang
                                                                      Rui Wang  19 hours back

                                                                      The sick Cichled Its just a waste of time.

                                                                  • Leo Raykher
                                                                    Leo Raykher  23 hours back

                                                                    is it possible to be patriotic for your own body cuz thats what I was feeling at the beginning of the video lmao

                                                                    • Plinkplink Fizz
                                                                      Plinkplink Fizz  23 hours back

                                                                      Brilliant! Show me an anti vaccination supporter and I will show you an idiot.

                                                                      • Whirlwind12 GMD
                                                                        Whirlwind12 GMD  15 hours back

                                                                        Look at the comment below yours. there is an antivaxxer named Ese Callum

                                                                    • Ese Callum
                                                                      Ese Callum  24 hours back

                                                                      Remember: Vaccines can cause serious health problems including brain inflammation and autoimmune disorders, allergies, ear infections, and more There's a very real association between vaccine complications and learning and behavioral disorders in children The components of vaccines have never been proven safe The ingredients and contaminants in vaccines can be detrimental to your health There are far safer and more effective ways to protect your children and yourself against disease. For example, a Japanese study from last year showed that school children taking vitamin D3 supplements were 58 percent less likely to catch influenza A. That's a higher effectiveness than any flu vaccine can claim, and doesn't come with a barrage of potentially devastating side effects!

                                                                      • Ese Callum
                                                                        Ese Callum  4 minutes back

                                                                        +Tautologist Vaccines are big business. Pharma is a trillion-dollar industry with vaccines accounting for $45 billion in annual sales. CDC’s decision to add a vaccine to the schedule can guarantee its manufacturer millions of customers and billions in revenue with minimal advertis- ing or marketing costs and complete immunity from lawsuits. High stakes and the seamless marriage between Big Pharma and government agencies have spawned an opaque and crooked regulatory system. Merck, one of America’s leading vaccine outfits, is currently under investigation for deceiving FDA regulators about the effectiveness of its MMR vaccine. Two whistleblowers say Merck ginned up sham studies to maintain Merck’s MMR monopoly.

                                                                      • Tautologist
                                                                        Tautologist  10 minutes back

                                                                        +Ese Callum
                                                                        Lol are you even reading what you copy-paste? Not seeing how that shows that vitamin D is more effective then the Tetanus vaccine. I like how you even deleted the SUBJECTS/METHOD part of that particular study where it says that patents received BOTH vitamin D supplements and a Tetanus vaccine. Stop embarrassing yourself by pasting these unrelated studies and use your own arguments.

                                                                      • Ese Callum
                                                                        Ese Callum  43 minutes back

                                                                        +Tautologist Efficient tetanus toxoid immunization on vitamin D supplementation.
                                                                        Heine G1, Drozdenko G, Lahl A, Unterwalder N, Mei H, Volk HD, Dörner T, Radbruch A, Worm M.
                                                                        Author information

                                                                        Vitamin D mediates immunomodulatory functions, and its deficiency has been associated with an increased prevalence of immunological diseases. The supplementation of vitamin D might be therapeutically beneficial, for example, in lupus erythematosus patients. However, its affect on established recall immune responses is undefined.
                                                                        During vitamin D supplementation the median 25-hydroxyvitamin D serum concentration increased to 80.3 nM, which as expected decreased in the placebo group to 29.1 nM during the ultraviolet-deprived winter months. The TT-specific immunoglobulin G (IgG) boost efficiency was marginal higher in the vitamin D group (P = 0.04). The increase of the 25-hydroxyvitamin D levels correlated with the increase of TT-IgG serum concentrations. The induction of specific serum IgA and specific antibody secreting cells was comparable between both groups. Accordingly, the TT-specific and polyclonally triggered T-cell cytokine profiles were stable as well.

                                                                        Vitamin D supplementation was successful and booster immunization induced efficiently specific antibodies titers.

                                                                      • Ese Callum
                                                                        Ese Callum  1 hours back

                                                                        24-year-old Indy man killed over $5, police say - The Indianapolis Star

                                                                      • Ese Callum
                                                                        Ese Callum  1 hours back

                                                                        +ConJared 24-year-old Indy man killed over $5, police say - The Indianapolis Star