The Science of Anti-Vaccination

We haven’t talked about the “vaccine debate”
here on SciShow because there is no debate to have. Vaccines don’t cause autism, and they save
millions of lives every year. But there is a debate, whether or not it makes
sense. And a lot of people counter this with ridicule,
but we at SciShow aren’t about judgment, we’re about science, and using it to better
understand the world. We see the anti-vaccination movement as a
phenomenon to be understood. So instead of making yet another statement about how, yes,
vaccines are good, and no, they don’t cause autism, let’s use science to understand
why fewer and fewer people are getting their children vaccinated. I’m Hank Green, and this is SciShow. [Intro] First, let’s discuss how we ended up with
this imagined link between vaccinations and autism in the first place. Autism diagnoses are DEFINITELY on the rise;
now many scientists believe that this is largely or even completely because of more effective
diagnosis, and changes in how the diagnosis is reported. So while diagnoses of autism are increasing,
we can’t say for sure whether the incidence of autism is also increasing. If it is, it
must be because of some environmental factor. Now, when we talk about autism, we’re really
referring to range of developmental disorders, which can affect a person’s ability to communicate
or socialize, or cause them to develop patterns of behavior that become pretty specific and
inflexible. The condition can manifest itself in a lot
of different ways, but you’ve probably heard of them referred to together as autism spectrum
disorder, or ASD. While ASD has been found to have some strong
genetic components to it, there also seem to be environmental factors at work as well. And that’s really the root of this controversy
— we simply don’t know precisely what causes autism. And in the absence of an explanations, people
try to make sense of it themselves. And the way our brains do that is almost entirely
with cognitive bias. A cognitive bias is really just anything that
skews how we process and interpret new information. There are tons of different kinds of bias
— some biases cause us to ignore certain data; others lead us to put too much emphasis
on certain data; they can even drive us to focus on facts that are actually irrelevant
to what we’re observing. But essentially, when we hear a hypothesis
and think, “Yeah, that ‘Makes Sense’” really what we’re saying is “Yeah, that
fits with my cognitive biases.” And so people blame all sorts of things for
Autism…plastics, pesticides, the use of anti-depressants during pregnancy, GMOs, sugar,
gut bacteria, and vaccines. Basically, you start with whatever makes the most sense to
the person doing the hypothesizing. The onset of autism typically happens in one
of two ways. Either parents notice a delay in language development, typically around
the first birthday. Or they notice an apparently sudden loss of existing development, which
might happen all the way up through the third birthday. Now, humans are pattern recognition machines.
We need to be able to figure out what behaviors and strategies lead to positive outcomes. But, even more than that, we’re on the lookout
for things that lead to negative outcomes. This over-weighting of negative outcomes is
a well known psychological effect called “negativity bias.” So imagine you wake up one morning and your
car doesn’t work. Your brain is going to want to know what happened. Did you leave
your lights on? Did you drive though a huge puddle yesterday that maybe shorted something
out? There has to be SOME reason why it won’t start! On the other hand, if you get in a 15 year
old car and it starts up just fine after having had a bad week of barely getting going, you
tend to not wonder “What went right!?” We spend far more cognitive resources attempting
to figure out why a bad thing happened than we do trying to determine why something good
happened. In psychology, the search for these explanations
is called “Explanatory Attribution” and different people have different “explanatory
styles”. Some people are more prone to blame themselves,
while others search for an external event to blame. But one thing is clear: we are very
bad at not blaming anything. It’s not surprising that parents of children
with autism, especially parents who notice a sudden loss of previous development, will
search for a possible cause. And when the most significant recent event
in the health of the child was a vaccination, as can be said for many moments in the life
of a young American, we might identify that as a potential cause and deem that link worthy
of further examination. Now this, is completely logical. The problem
is that over a dozen peer-reviewed papers have found no correlation between autism and
the MMR vaccine, or any other vaccine for that matter. And yet, when you Google vaccines and autism,
a fair number of the results claim that there is a link between the two, and that that link
is being covered up either by the government or by big corporations. A parent, already experiencing frustration
with the medical community’s inability to tell them why this thing has happened to their
child, will, on the internet, find a vibrant community of similarly frustrated people who
share their values and experiences. These communities are full of anecdotes that
draw connections between vaccines and autism. And so, unsurprisingly, some people become
convinced that they have found the reason for their child’s disability. Once their mind has been made up, confirmation
bias sets in. Confirmation bias is simply our tendency to more readily, and with less
scrutiny, accept information, anecdotes, and worldviews that confirm our existing beliefs. And, again, it is a completely normal thing
that every person does. Indeed, trying to convince someone that a previously held belief
is incorrect has been proven to actually increase their affinity for that idea. And so a community is born, and the safety
of vaccines is called into question. And once the procedure for getting a vaccine goes from
the doctor telling you that it is now time for a vaccine — and 99% of parents agreeing
because that person went through medical school — to it being a question to ponder, vaccination
rates will go down. A 2011 study showed that parents who think
about vaccines before their child is born are eight times less likely to vaccinate their
children. Basically, when given an opportunity to research on their own, what they find is
confusing. And when confused, the default choice is to simply take no action. This is an example of yet another bias, called
omission bias. In effect, we judge harmful actions as less
moral than harmful inactions, or omissions. In fact, a frequently cited study found that,
when the choice to vaccinate is framed as an action, the average parent will only vaccinate
their child if not vaccinating is at least TWO TIMES more dangerous than vaccinating. This has to do with our perception of future
regret. Parents report that they’ll feel worse if they take an action and it harms
their child, than if they don’t act and the child is harmed by a failure to act. This perception of potential regret can be
so strong that even bringing up the choice of acting versus not acting seems to be counter-productive. A 2013 study found that attempts to convince
parents to vaccinate their children actually decreased the percentage who went on to choose
vaccination. If vaccination is presented as a personal
choice, instead of a necessity for good public health, then potentially harmful inaction
can seem more moral than potentially harmful action, and vaccination rates go down. Parents
are choosing to “let nature take its course.” And as you might expect, this effect is much
stronger in people with a measurable “naturalness bias.” This is just a tendency to perceive
things that come from nature as being inherently less threatening than things that we invent
ourselves. One way psychologists measure this bias is
by asking a subject if they’d prefer a substance extracted from an herb or one synthesized
in a lab, even if they’re chemically identical. And of course, others have biases against
big government or big corporations, and these ideas about vaccinations fit well with those
worldviews. Confirmation bias at work again. But even people who don’t hold those biases
end up being more likely not to vaccinate if they start doing research before their
baby is born. This is because of another failure of the
human brain. We are terrible at what psychologists call “Risk Perception.” Given the merest sliver of a possibility that
vaccines will cause developmental disorders, parents are now weighing a disease they have
seen, autism, against diseases they have never seen. Since the 1970s, measles has been pretty much
unheard of. Measles doesn’t scare people my age for the same reason a giant man-eating
squirrel doesn’t scare us…we’ve never seen it. Risk perception is basically a science all
on its own, and we have found that vague, future hazards, like the future probability
of an illness, are far less frightening than immediate, specific hazards, like the sudden
onset of autism. So, amazingly, the success of vaccines is
one of the reasons that people are less likely to vaccinate their children. So yes, it turns out humans are complicated,
and this is a complicated problem. Humans are inherently bad at understanding the effects
of self-selecting samples — like online anti-vaccine forums — and often completely unable to accept
that a negative outcome could really be the result of something that’s beyond their
control — and still not very well understood. This is not a “anti-vaxxer” problem; it’s
a human problem. Those of us who trust science or have built
an understanding of statistics and bias simply have had different lives than people who more
heavily weight anecdotes or the opinions of their friends, or strangers they meet online
who feel the same way. So next time you find yourself frustrated
about the decline in vaccinations in America, remember that it’s only because of the dramatic
success of vaccines that we could even think of having this debate, and that those anti-vaccine
activists are being driven by the exact same logic traps and cognitive biases that every
one of us suffers from. Only by understanding and accepting these psychological pitfalls
that we’re all so susceptible to will we be able to solve this problem. And that’s
what science is all about. Thanks for watching this episode of SciShow,
where we really do try to be objective. And we objectively believe that the universe is
amazing and fantastic. And if you want to join us in understanding it and all of the
stuff in it, including our brains, you can go to and subscribe.


  1. Patricia Handa

    October 15, 2019 at 12:01 am

    Okay, so show everyone the stock video of a fretful toddler at the peak of a measles infection, or one that can barely breathe for the violent coughing fits during whooping cough. Show children relearning to walk after meningitis or being buried after pneumonia. Remind people why these vaccines were developed in the first place.

  2. Eleanor Dae

    October 15, 2019 at 12:28 pm

    time for my favourite pro-vaccine quote:

    "Vaccinations cause adults, not autism."

  3. oimamused1

    October 16, 2019 at 4:36 am

    Anti-vaxxers: The flat earthers of medicine.

    What started as one fraudulent study claiming a single vaccine causes a single issue (autism) has mushroomed into every vaccine causes literally everything, even child abuse (anti-vax groups are claiming shaken baby syndrome and fetal alcohol syndrome are a vaccine injury)… and everyone in the world is lying to you.

    This is the very definition of a conspiracy cult. The first thing a cult must convince you is that everyone else is conspiring to lie to you. Once all objective fact is doubted, they can tell you anything, no matter how absurd, and you'll believe it.

    Think about this: To believe that anti-vax conspiracy theories you must first believe that every single immunologist, virologist, epidemiologist and 99.99% of medical doctors in every country on earth are conspiring to lie to you.

    Debating an anti-vaxxer with their ever moving goalposts becomes a ridiculous game of conspiracy whack-a-mole.

    Here is the single resource that catalogues and debunks every anti-vax conspiracy: (to dismiss this site without addressing the linked sources for every fact given is not an argument. It is denialism.)

  4. LibertarianAnarchist

    October 17, 2019 at 6:14 am

    Sounds like hes saying vaccines come with zero risk or side effects…. Lol

  5. Audio Narco

    October 17, 2019 at 6:41 am

    I'm from a less developed african country.
    Got vaccinated against polio, hepatitis and measles, I'm fine, rarely get sick.
    In recent years there has been an increase in mandatory vaccines in my country, like malaria and others very unnecessary like HPV, before a child reaches 15 they've got like 8 different vaccines instead of the normal 2 or 3
    I'm not anti vax or whatever but deep down i feel there is something ingenuine driving this, and it isn't the welbeing of children

  6. Great Burrito

    October 17, 2019 at 11:01 am

    The science of anti-vaccination… that’s an oxymoron if I’ve ever seen one

  7. Jacob Carlson

    October 18, 2019 at 12:27 pm

    Dude.. You didn’t explain why autism IS actually on the rise. You just said it’s unknown. If you inform the public what is actually IN a vaccine they will be able to make a better decision. Instead you tell humans how their brain works – a psychology class.
    Vaccines contain lead, mercury and arsenic all of which are proven to cause issues in the development of children and they definitely do not aid in the functioning of adults.

  8. H.B.C. Reloaded

    October 19, 2019 at 4:59 am

    Summation of every pro-vax argument:
    “Doctors say they’re good, if you don’t agree with Doctors, you are wrong “

  9. Anton Levkovsky

    October 19, 2019 at 12:25 pm

    Biochemistry is a very complex subject. There are organs in the body whose function is still not entirely understood (e.g. spleen). The way immunity works is extremely complex. Vaccines have a chance (however small) of developing serious complications not after some years but right after they are administered. And this can’t be predicted due to mentioned complexity. That’s why in countries with democracy people can opt out. Because the chance of contracting some diseases is comparable with the chance of getting a complication from the vaccine. You don’t avoid some diseases because of vaccination but because they are simply very rare in modern society with proper hygiene. Now in Russia for example , the first category of people that stopped vaccinating their kids after it stopped being mandatory were amazingly doctors themselves. It isn’t “advertised“, but it’s a real trend here. Because they know the risk of complications vs the risk of getting a desease in a population with high vaccination percentage.

  10. Dustin McGuire

    October 21, 2019 at 3:33 am

  11. THATMemeMaker

    October 21, 2019 at 1:23 pm

    There is no science in anti-vaccination

  12. SQUACK

    October 22, 2019 at 3:29 am

    They will not do the debate. Let Robert F. Kennedy Jr. debate with any of the vaccine pushers

  13. Lee Risinger

    October 23, 2019 at 6:30 am

    Did he just blame autism on the environment?

  14. Lee Risinger

    October 23, 2019 at 6:36 am

    Just trust them they have degrees…….

  15. Michael Scott

    October 23, 2019 at 1:05 pm

    To think this started from a doctor who purposely invited individuals with autism to a experiment and concluded that vaccines cause autism.

  16. Kirkwood Paterson

    October 23, 2019 at 4:39 pm

    Always with the propaganda. Vaccines do carry risks / side effects, many side effects, including infant mortality. Autism is one of the more benign side effects of certain vaccines. Not nonsense. The only incidents you will hear about though are those that occur in China and Russia aligned countries

  17. Infidel Heretic

    October 24, 2019 at 12:06 am

    Basically what he’s saying is “The reason why people don’t vaccinate is because they don’t understand science.”

  18. Dave Bander

    October 25, 2019 at 4:32 pm

    Re scientific evidence of the safety and efficacity of vaxx, there has not been one randomized, double blind placebo controlled study. In short: We don't scientifically know if vaxx work or are safe as we don't have the mentioned studies. Only those would allow us to determine whether vaxx or something else is the cause of working. So, vaxx are simply not properly scientifically based. This video shows no science but rather entertainment.

  19. Jess Whalen

    October 26, 2019 at 5:47 pm

    I like the way this was said, without demonizing anyone and just by helping to understand. As a person who wants a child someday, I don’t care if they’re autistic. Why would I? As long as they’re alive and healthy, I’ve done my job. I’m dyslexic and people have told me that’s a problem, I’m also asexual and a girl. None of these things are things I got to choose. I was born these things. It didn’t make my family question what they did wrong! There’s nothing wrong about being different so long as it doesn’t hurt anyone.

  20. Deep Blue

    October 26, 2019 at 6:55 pm

    Im a proud anti-vaccine mother of 3 beautiful healthy children

    2 Beautiful Healthy children

    No children.

  21. frayzure

    October 27, 2019 at 8:59 pm

    Hey let them not vaccinate themselves….that will mean less “stupid” people in society because they’ll die from something that’s easily prevented

  22. Katie Skellington

    October 29, 2019 at 5:17 am

    Parents are being stupid and ignorant in allowing theories to make their decisions for their children. Absolutely ridiculous. Maybe start pressing charges on parents who don't immunize then their child gets sick or dies. How could someone potentially put their kid at risk like that????
    I just don't understand.

  23. Malakikiki Doodles

    October 29, 2019 at 2:09 pm

    Antivaxxers say vaccines cause autism.
    They can't. The blood doesn't cause autism. Generally, it's due to either psychological trauma or crossed wires in the brain.
    There's literally no way those two can correlate.
    Plus, being autistic ain't bad anyways. Just causes your view to be different to others.

  24. True darkness

    October 29, 2019 at 8:06 pm

    No more hand gestures while talking, u don't need them so they are a waste of energy and are unimportant

  25. sky watcha

    October 29, 2019 at 10:07 pm

    Id love to see you get injected with whatever you want us to use.

  26. Vault Boi

    October 30, 2019 at 4:51 am

    I had pneumonia the other day, and an antivaxxer kid spat at me and did the hype dance, I proceeded to cough at him, and tomorrow is his funeral

  27. Banana Bob

    October 30, 2019 at 11:03 am

    Sci Show: Uploads Video
    Karens: Can I speak to your manager?

  28. Joan Ridgeway

    October 30, 2019 at 11:15 am

    How about test babies blood before we give them all these proteins, and metals.

  29. Brittney Crist

    October 30, 2019 at 4:05 pm

    Don’t treat Autistic people like their condition is worse than causing a pandemic. The man who first said that vaccines cause autism got his medical license revoked. It came to light he made up his “scientific research.” People who have terrible reactions to vaccines (including me, I am allergic to the whooping cough vaccine) are rare. But it isn’t the vaccines fault, just like when someone is allergic to peanut butter. We don’t blame the peanut butter for the cause of it, it’s the persons body.

  30. TAPriceCTR

    October 30, 2019 at 5:11 pm

    Never trust anyone who claims to support science then says "there's no debate" there is ALWAYS debate to be had. Debate is the foundation of science.

    If vaccines were 100% harmless the rabies vaccine would be given as part of the standard schedule and during the small pox terrorism scare everyone who hadn't gotten it (because they were born after we stopped giving the small pox vaccine) would have gotten it.

    The fact is, there is much debate to be had and nothing bolsters the antivaxer movement than the provaxine dogmatic refusal to respect valid concerns.

  31. Super Duckling & Friends

    October 30, 2019 at 6:01 pm

    dear Moms! Please show your kids this lovely video – a story about baby Alligator who successfully withstood vaccination. Because sometimes a child crying and rebelling in doctor's office is able to stop or at least postpone vaccination!

  32. Bryson Allgood

    October 31, 2019 at 1:58 am

    Person with an autoimmune disorder that makes it easier to get diseases and can’t get a vaccine because of it: YAY I’m 50 and I haven’t died of shingles!

    Anti-vaxxers: I sneeze at you it will make you stronger.

    Person: IT WILL KILL ME!

    Anti-vaxxers: Essential oils and crystals will save you

  33. TZeusMusic Official

    October 31, 2019 at 7:17 am

    Not vaccinating your child should be illegal, because it hurts herd immunity.

  34. Courtney Walker

    October 31, 2019 at 11:59 am

    What about the flu jab? I mean is it even worth getting? I’ve never had one in my life… and I’ve had the flu maybe like once.

  35. current river

    October 31, 2019 at 2:18 pm

    For all of you that can read, I would suggest getting a vaccine package insert, how many toxins are in each dose? and WHY would you put toxins in a new born baby??????? take toxins out and they could be a good thing.

  36. current river

    October 31, 2019 at 5:25 pm

    Sheep that's what I clearly see

  37. Daybird Aviaries

    October 31, 2019 at 7:24 pm


  38. DECAY

    November 1, 2019 at 10:56 am

    Can we get an updated video I've got people saying its 4 years old cant be true

  39. Raven Night

    November 1, 2019 at 1:53 pm

    Gov shill

  40. Ying Yang

    November 1, 2019 at 4:58 pm

    ah that voice – so grating

  41. Sub Optimal

    November 1, 2019 at 5:02 pm

    Measles has a devastating and long-term effect on your immune system.
    31 October 2019
    Measles is known to make children vulnerable to other infections. Now two major studies of Dutch Orthodox Protestants, who reject vaccination, have discovered why: it massively damages the immune system, making measles even more lethal than we realised.
    “The worst-affected 20 per cent lost more than half the antibodies they could make against more than half the pathogens we tested,” says Mina. The live, weakened measles virus in the MMR vaccine had no such effect in the 32 other children they studied.

    To get their lost antibodies back, Mina suspects those who had measles must be re-exposed to all the pathogens they had already encountered, with the attendant risks of disease. They may even need to receive any previous vaccinations again, as vaccines work by teaching the immune system to make specific antibodies.|NSNS&utm_source=NSNS&utm_medium=RSS&utm_content=news

  42. Ying Yang

    November 1, 2019 at 5:09 pm

    Remember, when someone expresses concerns over the proven side effects of vaccines – don;t debate them, laugh at them

    Remember, when the devastated parent of a vaccine injured child tries to raise awareness of the potential dangers of vaccination – don;t debate them, laugh at them

  43. Ritika Devarakonda

    November 1, 2019 at 8:17 pm

    Who's to say that the researchers of those peer reviewed papers were not guilty of conformation bias? It the same principle: those researchers all wanted to prove that vaccines aren't correlated with autism and (likely inadvertently) found evidence that supported their hypothesis.

  44. French Republica

    November 1, 2019 at 8:44 pm

    HMM YES…So anit vaxxers reply me your information about your arguement. One thing I have to say. ANIT VAXXERS ARE THE APES OF OUR MANKIND. So having a small allergic reaction is better then dieing from measles. So vaccines cause Autism? Here's the thing. IS DIEING BETTER THEN GETTING AUTISM WHEN HIGHLY TRAINED DOCTORS DESTROYED YOUR FAKE PROOF. IS HAVING A SMALL ALLERGIC REACTION BETTER THEN BRINGING BACK SMALLPOX AND INCREASING THE DEATHS CAUED BY MEASLES. Human kind is just stupid. You guys makes fake proof and make random mommy blogs. Non scientific proofed articles with fake doctors. Theory,s AND NOT WORRYING ABOUT CHILDREN DIEING CAUSE YOUR SPREADING THE DISEASE. So dieing from a disease is better then having a small allergic reaction? Ya guys need to get a new brain. Am so mad at anti vax people. Our human race would have been the most developed life in the universe if you didn't show up. Don't give me that "I can choose my opinion" your killing kids by spreading the most prevented diseases on earth. Also about the chemicals in vaccines. THEY ARE SO SMALL THAT YOU WOULD NEED A MICROSCOPE TO SEE THE LIQUID. A MILLIGRAM…A GOD DARN MILLIGRAM IS TO MUCH ALUMINUM IN A VACCINE? There I let out my anger at the anti moms… reply all you want there is no scientific proof that Autism is from a vaccine. It is true that they cause allergic reactions. But is death better? Yup so losing a family member is better then a small rash that could be treated with some cream and medical treatment. God that's enough I let out a lot of anger on these people.

  45. mongo99999

    November 1, 2019 at 9:08 pm

    AHH WIKIPEDIA truth kiss of death OWNED propaganda outlet

  46. mongo99999

    November 2, 2019 at 2:23 am

    You guys should follow some of my links; you can use the info. to attack and insult me. Good idea? I find nothing surprising coming from uneducated reactionaries.

  47. Jim Brewer

    November 2, 2019 at 10:35 am

    People who don't vaccinate their children are guilty of child endangerment at best. And at worst, if they get sick because of it, child abuse and if (heaven forbid) they die, they're guilty of premeditated MURDER! Vaccinate your children you morons!

  48. Marcy Roy

    November 2, 2019 at 4:27 pm

    Why lie to people? What do you personally gain from this? Watching kids be injured? Yeah, your a true hero

  49. Ilyushin

    November 3, 2019 at 1:37 am

    Jokes about ant vaccinations never get old, just like their children

  50. The Sense8 Thank You Project

    November 3, 2019 at 4:50 am

    What a lame video, offering little to no proof of anything you say, completely ignoring valid, medically published studies showing many problems with vaccines. To do a REAL video, an honest debate about the issue, you would have to actually investigate the "anti-vaxx" claims, read some of the published studies, talk to some of the parents whose children's lives were ruined by vaccines. But you won't do that.

  51. Domigene Yellets

    November 3, 2019 at 2:48 pm

    All true, unless you have a child who had a reaction and his life was irreparably changed. But if it's not your child, he is just a statistic that is ignored.

  52. Andrew Liu

    November 3, 2019 at 6:15 pm

    Here's an article disproving the connection of the MMR (Measles, Mumps, and Rubella) vaccine to autism.

  53. oxojungle

    November 3, 2019 at 8:29 pm

    Take a look at what lurks in the MMR vaccine. HIV, cancer causing virus's, complete human DNA etc. Within the GlaxoSmithKline Priorix Tetra vaccine, Proteobacteria, Platyhelminthes worms and Nematoda, 10 more ssRNA viruses,
    Microviridae (bacterial viruses or phage) and numerous retroviruses including endogenous human and avian retroviruses, avian viruses, human immunodeficiency virus and immunodeficiency virus of monkeys (fragments that if inserted into the database turn out to be fragments of HIV and SIV), murine virus, horse infectious anemia virus, lymphoproliferative disease virus, Rous sarcoma virus. Other viruses like alphaendornavirus and hepatitis b virus, yeast virus.
    CORVELVA QUOTE >> Basically, we had to go very deep to trace Rubella virus (in order to prove the presence), using a high sensitivity method. This led us to also come across dozens of viruses and retroviruses, some potentially carcinogens, fungi, yeasts, bacteria.
    Whatever the answer about the amounts, it is certain that there should be none; this again shows that there is NO adequate control over the
    vaccines otherwise these elements would be detected.

    The list and exert quote was taken from the recent Italian CORVELVA Association study, which used the most up to date Next Generation Sequencing equipment., not 1960s methods of analysing, which is still the ongoing vaccine safety requirement. Start learning people >>> The study >>>

  54. Mirrored {} Chaos

    November 4, 2019 at 2:35 am

    in my 5th grade of elementary getting vaccinated was mandatory before going to middle school.
    does that mean anti-vax children never make it past elementary?

  55. oichi12

    November 4, 2019 at 4:10 pm

    Basically humans are stupid

  56. The Imaginary Gallery

    November 4, 2019 at 6:37 pm

    There is a definite link between autism & vaccines. This story is fake news propaganda which is dangerous & irresponsible . The claim that vaccines are safe is part of a huge coverup. Get your facts straight.

  57. warren coburn

    November 4, 2019 at 8:15 pm

    How can a shill be objective as he claims to be?

  58. Lucian MacAndrew

    November 4, 2019 at 8:49 pm

    This is the real truth:

  59. MsDay

    November 4, 2019 at 10:57 pm

    Anti-vaxxing isn't about 'my kid probably wont get sick, anyway', it's about 'I'd rather have a dead kid than a disabled one'.

  60. Skywatcher and Tiki

    November 4, 2019 at 11:00 pm

    I'm a science guy. I'm an idiot because humans are the only idiots in the whole world of animals that purposefully shoot potent chemicals into a healthy body. You idiots.

  61. space base

    November 5, 2019 at 1:02 am

    People should trust doctors. If they wanted you to die they wouldn’t be doctors

  62. sham hisham

    November 5, 2019 at 12:54 pm

    I don't trust our zoinset government

  63. anon ymous

    November 5, 2019 at 2:46 pm

    Vaccined dont cause autism because one of the 34 ingredients tested prove 1986 vaccines producers were exempt from lawsuits..since then vaccination quantities increases hmm ofcoure there is no relation here

  64. Matt D.

    November 5, 2019 at 5:09 pm

    Anti-Vaccination is Anti-Science

  65. Liam Smith

    November 6, 2019 at 3:28 am

    U have cognitive bias to vaccines buddy

  66. Jammit Timmaj

    November 6, 2019 at 6:18 am

    Vaccines cause wrinkles and grey hair.

  67. Avery Games

    November 6, 2019 at 6:28 pm

    The only reason why people think this is because one single Paper in 1995 was published by one doctor who hated a pharmaceutical company. It was outright slander against the pharmaceutical company and had little to no scientific evidence at all. Yet people were stupid enough to believe it, vaccinations should not be a choice they should be a law. I am glad that many schools in America prevent parents from letting their children go to school if they're not vaccinated. Vaccinations allow children to become adults without having to worry about things like polio, smallpox, the plague, or other deadly diseases that would have been a death sentence 500 years ago that are now easily curable and preventable with this advancing medical technology. Hospital should start hanging signs in front of them that say, " This is a place of science, those who believe in the power of prayer and conspiracy theories are not welcome here. If you believe in either of those including that vaccines cause autism get out!" The only way to convince people that vaccines actually work is infecting them with a disease like smallpox or polio, which is easoly curable by vaccination, and if you don't have the vaccination you die. The stupid conspiracy theorists will be forced to believe in the power vacvines and modern medicine. Conspiracy theorists are a danger to this country, they are corrupting the minds of the youth and making the average IQ of the people go down year after year, we would be better off in this country without conspiracy theorists.

  68. Icebeard

    November 7, 2019 at 3:05 am

    The science of understanding stupid…Stupid people believe stupid things and deny logical reasons!

  69. AJ Howeird

    November 8, 2019 at 4:01 pm

    "Parents who think about vaccines before their children are born are 8x less likely to vaccinate their children." So parents who do their own research find reasons not to vaccinate. He assumes it's because they are confused, but I would argue they have a more clear understanding. Using this logic, the Drs "who went to medical school," telling you to get vaccines would be the most confused because they've done the most research.

  70. Dillon Ormsby

    November 8, 2019 at 7:59 pm

    Why is the measles virus found in the gut of autistic children?

  71. Ray Colon

    November 9, 2019 at 6:09 pm

    Your so ignorant and indoctrinated. Yea you can pull so called facts off the internet but do you have the skill to think critically? The biased idea is the dumbest thing I ever heard and is the biggest excuse to disprove people. These studies are performed by lobbyists who have an invested interest to prove it's not harmful. If you would like to challenge my views I'd be more then willing to debate with you mr science guy

  72. Lizzie Allen

    November 10, 2019 at 12:42 am

    So, pro-vaxxers, quick question, is it true that stem cells from aborted fetuses are used in the manufacturing of vaccines?

  73. mongo99999

    November 10, 2019 at 6:06 am

    You start your objective "scientific" "show" with a subjective statement not supported by any facts. Typical of vaccination hype mind control brought to us by BIG PHARMA who gains in the billions by making people sick.

  74. mongo99999

    November 10, 2019 at 6:07 am

    Educate yourselves if you dare. The "status quo" is all built on colossal vested interests' house of lies.

  75. Nancy Herrera

    November 10, 2019 at 11:01 pm

    Incase you haven’t seen the trailer to Vaxxed II: The People’s Truth | (Official Trailer)
    Here it is! Share, like and make sure to share this link attached for those that live in Flagstaff and surrounding areas.
    Link to the event:

    Here’s the link to reserve your spot at the Flagstaff, AZ location

    Credit for this video goes to: Vaxxed TV on YouTube, please subscribe to their channel- link is

  76. SeedPlanter

    November 11, 2019 at 7:26 pm

    Even though we refuse to do a study that includes a placebo group and 54% of you are sick. Just do what we say.. We have no liability. Vaccines are safe thats not the problem the problem are all the chemicals and animal dna / fetus dna.

  77. Dr. bright

    November 13, 2019 at 4:58 am

    Anti vaxxers: mY BabIEs ArE ComPLetElY HEalThy AnD wiLl NeVEr Get siCk

    Mosquitos: are you sure about that

    Ticks: its free real estate

    Parasites in general: why AREN'T you running?

  78. Green Goblin from cory in the house

    November 13, 2019 at 9:39 pm

    Body emits radiation. Radiation causes cancer. Ban the human body.

  79. Christopher Fyffe

    November 14, 2019 at 6:15 pm

    Recently someone argued that vaccines may not be necessary and that everyone should undergo genetic testing to make sure a vaccine is safe.

    I cant help but to ask. .. seriously though what would you test?

    I don't see much to gain from this person's viewpoint. As said vaccines save millions.

  80. fxsrider

    November 15, 2019 at 5:55 am

    Slow down a bit.

  81. Chris Doner

    November 15, 2019 at 5:37 pm

    The message of being aware of our own biases is important. My daughter received a DTaP +polio vaccine on September 9, 2009, and began to have insomnia soon after. To this day, she spends entire nights babbling. It is certainly possible that this had nothing to do with the vaccine, but I find it improbable. There were no other significant changes such as puberty taking place at this time in her life. More evidence came from reading the vaccine insert which listed sleep disorders as a possible side effect (No medical doctors pointed this out to us). More confirmation came from a research study that discussed sleep disorders and general mental disturbances associated with vaccines. Though I do not know that this vaccine caused my daughter's insomnia, I would be very biased against forming any sort of opinion, if I did not reach the conclusion that the vaccine caused my daughter lifetime damage.

  82. Chris Doner

    November 15, 2019 at 5:51 pm

    You might wish to consider your own biases. Autism has grown from 1 in 10000 to 1 in about 60, an increase of over 16000%, yet you are happy with the changing diagnosis hypothesis. You do not present any actual research, and you seem to have no awareness of the many, many papers that show connections between a plethora of health problems and vaccines.

  83. Ramon Lopez

    November 16, 2019 at 8:40 pm

    This guy is a pharma paid biatch lol

  84. Jeff Forssell

    November 17, 2019 at 3:06 pm

    When vaccinations are tested (preferably not by the producer) against real placebos (in stead of other vaccines, adjuvent soups etc which are always used) we will be able to say something scientifically about their safety. But that isn't done. (and of course if they are so safe, why has the vaccine part of the medical industry been exempted from being sued for damages?)
    When a real comparison of unvaccinated and vaccinated groups for their total health picture we might be able to start to really asses the "benefits". That hasn't been done either.
    The young fellow making this video can perhaps be excused because of his age to not know that people like me (74 yr) that lived with and HAD measles find the current panic about measles way out of all sense of reality. (But he should have/could have checked the mortality of measles and how it had gone down 99% way before the vaccines came, and claimed victory)

  85. Allblackeverything Chillbeimgeschäftsmeeting

    November 17, 2019 at 3:32 pm


  86. hi ._.

    November 17, 2019 at 5:34 pm

    4k dislikes are from Facebook Karens

  87. Richard Kahler

    November 17, 2019 at 8:50 pm

    Breathtakingly biased! Smoking does mot cause cancer either!

  88. Richard Kahler

    November 17, 2019 at 8:50 pm

    Breathtakingly biased! Smoking does mot cause cancer either!

  89. Sergeant Danelarton

    November 17, 2019 at 11:48 pm

    7 vaccines given within 2 months of birth. Where is the study/experiment done on infants?

  90. Sergeant Danelarton

    November 17, 2019 at 11:49 pm

    When I stopped taking the flu vaccines I stopped getting the flu. All I needed was vitamin D3 about 15000 ui. And I never gotten sick. BTW I work in the hospital I an surrounded by sick people.

  91. SQUACK

    November 18, 2019 at 1:22 pm

    Lets just do a study of vaccinated v. unvaccinated.

  92. Posey Perspective

    November 18, 2019 at 11:03 pm

    Great video

  93. Thorn the gay

    November 19, 2019 at 5:20 am

    Kids are more likely to get autism by vaccinations cause they're alive, and not dead

  94. W

    November 19, 2019 at 11:59 am

    This video is biased and not scientific. I’m pro vaccine but this dudes attitude is annoying. “There is no debate” Cmon. Vaccine injuries are real. A good video would show the history of vaccination injuries and the improvements of their safety, ingredients and quality. Instead he just dumps on anti-vax. Low hanging fruit

  95. Tau Noctua

    November 19, 2019 at 4:41 pm

    Walmart and Costco are dealing with a major recall of tainted baby food. Among the contaminents are lead, heavy metals and bacteria strains.

  96. Kieron Moore

    November 19, 2019 at 8:33 pm

    I have had the mmr vaccine and I have aspergers. I don't believe the vaccination caused this because we are born with it. My two sisters also had the vaccine and don't have aspergers/autistic

  97. SQUACK

    November 20, 2019 at 2:31 am

    Great speech on the religious aspects of vaccination

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