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5 Common Anti-Vaccination Arguments That Are Flawed

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The Great Vaccine Debate

The anti-vaccination movement is louder and bigger than ever. As we see a resurgence in diseases previously thought to be under control and close to eradication, more and more people speak up against the movement. It's a heated topic among parents, and even those without children are taking an interest.

If you've ever participated in this debate, you've probably noticed that there are some go-to arguments. This article presents a list of some of the most common anti-vaccination arguments that don't have much (if any) scientific evidence on their side.

1. The decision not to vaccinate doesn't affect anyone else.

Unfortunately, vaccines are not infallible. If even 1% of the vaccinated population do not receive immunity to a disease, it is a substantial number. If you had a group of 100,000 children and had an ideal vaccination rate of 95%, there are still 950 vaccinated children at risk of being infected. With a vaccination rate of 95%, outbreaks are unlikely. However, vaccination rates have been falling in a number of developed countries and are now below 90%. As the number of unvaccinated grow and various outbreaks emerge across the world, the small percentage of vaccinated who unknowingly have no immunity are put at an even higher risk of contracting the diseases. In reality, 1% failure rate is generous, as it's estimated anywhere from 3-5% of the vaccinated population will be considered "vaccine failures".

An even more obvious group of children put at risk are those who cannot receive vaccinations due to a) medical issues, family history of adverse reactions, or allergies, and b) being too young to be immunized. These children depend on those healthy enough to receive vaccines to keep infectious diseases at bay, since they cannot receive direct protection.

A decision not vaccinate a healthy child may not seem like it makes a big difference, but as more and more parents make the same decision, the effects become a threat to public health.

2. Vaccines cause autism.

Surely we're all familiar with this one, and despite the fact that this claim has zero scientific evidence to back it up, people still love to cling to it. Some people even go to the trouble of making neat-o graphs and distorting data to 'prove' the link.

One of the first things one learns when doing any sort of research, is that correlation does not equal causation. The majority of the scientific community acknowledges no causal relationship between vaccines and autism, and it's not for a lack of searching. A search for "vaccines and autism" pulls up 4,420 articles in peer-reviewed scientific journals. After reading 48 abstracts, not one suggests that any connection has been found. Admittedly, I do not plan on reading all 4,420 articles, and 48 is a small sample size. However, given the fact that the first 48 results deemed "most relevant" to vaccines and autism do not include any evidence to suggest a causal link, it's probably safe to assume that there is no study in the midst of these articles that offers any sort revelation to the contrary.

So, why do so many people believe vaccines cause autism? It seems to be mostly based on anecdotal evidence, which in the world of scientific study, doesn't hold much weight.

Additives are important!

  • Adjuvants help the body's immune system respond to the vaccine
  • Additives such as formaldehyde inactive dangerous bacteria and viruses
  • Additives play an integral role in keeping vaccines safe and efficient

3. There are too many additives in vaccines.

Thimerosal: People just love to talk about thimerosal. It's talked about so much that it's almost as though people don't realize that thimerosal was removed from almost all vaccines back in 1999. The only vaccines that currently use thimerosal in Canada are the flu vaccine and hepatitis B (which offers a thimerosal-free version, if it's of concern to the parent).

Pulling thimerosal from the majority of vaccines was a strictly precautionary measure, which has unfortunately been deemed as admittance that it posed a threat.

Aluminum: Add it to the list of things that allegedly cause autism. In case you've lost track, here's a quick summary:

  • Thimerosal causes autism even though autism rates have continued to climb since it was removed from almost all vaccines.

  • The MMR causes autism even though it doesn't include thimerosal or aluminum.
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  • Where's the common denominator here?

Back to the aluminum: There's a movie called The Greater Good which is pretty heavy on the anti-vaccine bias, and it does a little segment on aluminum. It features a study which shows some pretty clear-cut negative affects of small amounts of aluminum (like that present in vaccines) on motor neurons in mice. One of the guys who conducted the study goes on to say that no one has dared to replicate the study for fear of the truth, or something as equally ominous, and after doing a search of peer-reviewed scientific journals, it appears he's correct; no one has replicated the results. But, is it because people don't want to, or because they can't? If you've ever studied the scientific method, you'll know that if no one can replicate your results, your study probably wasn't that good.

Aborted fetal cells: Talk about sensationalism! This is one of those arguments that is exaggerated to hit you right in the gut, and it's certainly cringeworthy.

Viruses require something to grow on. That something happened to be fetal tissue used from legally aborted fetuses in the 1960s. The cell lines have been descending rapidly for over 50 years and no cells in any vaccine we have today are the cells from an aborted fetus. Not only that, but most (if not all) cells are removed during the purification process.

The important thing is to acknowledge that people who create vaccines don't just throw in random ingredients for the fun of it. The adjuvants are necessary to make the vaccines as safe and effective as possible. Interestingly, it's been suggested that the testing of the 1966 vaccine against RSV, which was a complete failure and resulted in hospitalizations and two deaths, could have been a result of no TLR agonists present in the vaccine. This goes to show that leaving adjuvants out can be much more devastating than putting them in.

Likewise, no parent injects these ingredients into their child for the fun of it. Do I love the idea injecting aluminum into my kid? Nope. But it's for a reason, and a very important one at that.

4. Herd immunity is a myth.

This claim seems to be growing in popularity, and yet it is incredibly difficult to find actual scientific evidence to back it up. A quick search for "herd immunity myth" brings up a whole bunch of results, but they all come from anti-vaccination websites.

So, does any reputable, unbiased scientific journal endorse the idea that herd immunity, as it relates to vaccines, is a myth?

A quick search of peer-reviewed scientific journals brings up 193 results for "herd immunity myth". However, not one of these 193 articles makes any suggestion that herd immunity is a myth. Actually, quite the contrary: These articles are focused on dispelling vaccination myths and assert the importance of herd immunity, explaining how and why it works.

Backtracking to the Google results, what you find is a lot of talk and no sources. There are a few interesting articles on why particular vaccines may not contribute to herd immunity as originally thought, but this in no way means that herd immunity is a myth. There are boosters and multiple doses for vaccines that have been shown to have waning immunity to ensure that herd immunity is sustained.

5. The prevalence of infectious diseases was already declining before vaccines were created.

  • The person who wrote this article does an absolutely perfect job of exposing how this claim is incredibly misleading when it comes to measles specifically.

  • The smallpox vaccine is the most glaringly obvious success. The vaccine was introduced in 1967, and was deemed to be eradicated in 1979 after an aggressive vaccination initiative.

  • Canada saw an 80% decrease in cases of diphtheria within just 4 years of the vaccination being introduced; reports of diphtheria were consistent in the years leading up the vaccination (ie. not already steadily declining).

  • Mumps saw a 99% decrease in less than 20 years. Prevalence of mumps had peaked 3 years before the mumps vaccine was licensed (ie. not already steadily declining).

The CDC pinkbook has a lot of this information and provides data on prevalence of all preventable diseases before and after vaccination.

It's interesting to think about how many people refused vaccinations when they first came out, when infectious diseases were commonplace and the chances of losing your child to one of them were dangerously high. Would we still be worrying about the trace amounts of aluminum or formaldehyde in a vaccine if the alternative was a very real chance of our child contracting a deadly disease?

Vaccines are truly a victim of their own success. The fact that people don't have to look these diseases in the face at every corner distances them from the reality of how horrific they once were. Instead, we speculate on things that have been disproved repeatedly. We question the motives of everyone in the industry.

Asking questions is good. Looking to make things safer and looking for reassurance is good. But constantly dwelling on it is perhaps shifting the fear away from the thing we should be most afraid of. My only hope is that it doesn't take another round of infectious diseases to make people see the importance of vaccinations.


Lorelei Cohen from Canada on August 11, 2018:

I can only imagine our world if vaccines were not here. How very scary a place it would be. They are not perfect but they are our very best defence against illness thus far and have proven beyond a doubt that they can be a life saver. My children received their shots and as an adult with lung issues I receive the flu vaccine every year faithfully. Thank you for the vaccine chart. That was very interesting.

Akriti Mattu from Shimla, India on May 28, 2015:

Well researched post. Voted up :)

Aime (author) from Trudeauland (it's like Disneyland but hotter) on March 24, 2015:

There are no compulsory vaccines where I live (Canada). In fact, only two provinces require vaccination to be admitted to public schools and they both have philosophical exemptions, meaning all you have to do is basically say "I don't believe in vaccines" and you're off the hook, essentially making the mandate pointless.

They are part of the recommended vaccination schedule but no one is required to follow it.

Bible Flock Box on March 24, 2015:

peachpurple - Yes. But some people just ignore that and don't vaccinate their children.

peachy from Home Sweet Home on March 24, 2015:

Is MMR and polio compulsory vaccination in your country?

Aime (author) from Trudeauland (it's like Disneyland but hotter) on February 13, 2015:

Thanks for reading.

I checked out your hub, unfortunately all of your references are anti-vaccine sites so I'm not sure you're basing your "facts" on credible information. :)

I'll comment with proper feedback on your hub when I get some time to sit down with it.

Bible Flock Box on February 13, 2015:

I don't agree. Please read my hub, entitled, "10 Facts that Vaccine Companies Don't Want You to Know".

peachy from Home Sweet Home on January 22, 2015:

In our country, vaccination from birth is compulsory, so parents had to abide with the booklet

Jacqui from New Zealand on September 23, 2014:

I'm a nurse who used to vaccinate for a large chunk of my job - I got to know the in an outs of the research etc quite well - Wakefield has done more damage than anything else and I agree with yr statement re jail!

Aime (author) from Trudeauland (it's like Disneyland but hotter) on September 23, 2014:

Thanks, jlpark! I am pretty much all for just throwing Wakefield in jail at this point, seeing as he was recently at it again with that CDC conspiracy nonsense.

I have personally never seen a solid argument for a vaccine-autism link and I've research this topic to DEATH! Some people are cool with taking anecdotal evidence as fact... I am not one of those people.

Thankfully the anti-vax movement seems to have slowed down slightly in my area over the past few months (or maybe I'm just getting better at tuning it out).

Thank you for commenting. :)

Jacqui from New Zealand on September 17, 2014:

Aime - thank you for a great hub. Debunking the myths can help, but the most vehement anti-vaxxer's will ignore the science anyway. Particularly the fact that Dr Wakefield (linked MMR with autism falsely) has been struck off the medical register, his study has been debunked thoroughly, and was flawed by his own greed (had a form of vaccine for measles alone in the pipeline when he wrote the study)...

I've got anti-vac friends, but not vehemently so - just for their kids. Even one who has a partially vac'd kid, who has autism, who has said "I know, I KNOW, but I just can't do it" - which I completely understand - she acknowledged it's not MMR, but she just can't make herself do it.

The unfortunate thing is that children with autism develop normally till about 18mths-2yrs (though, some are OBVIOUSLY autistic early on) - which is about when the MMR vaccination is given. Even unvaccinated kids become autistic around this time.

Yay for a great article

Aime (author) from Trudeauland (it's like Disneyland but hotter) on July 12, 2014:

Thanks for your comment, greeneyedblondie.

Mercury was actually the first ingredient I discussed; thimerosal = mercury derivative.

Why would they call it something else? Just for the sake of injecting people with secret ingredients because they think it's fun?

greeneyedblondie on July 11, 2014:

You forgot about the part where they put mercury in vaccines, and if they don't call it mercury they call it something else just to put it in them.

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