Should You Get the Flu Shot This Year?

Written by Dr. Steve Chaney on . Posted in Flu Shot

The Truth About The Flu Shot

Author: Dr. Stephen Chaney

 

should you get the flu shot this year little girl sneezingShould you get the flu shot this year?

It is the worst of times. The flu virus is particularly deadly this year. Flu deaths are piling up. On the other hand, the flu vaccine is only about 10% effective. The medical community is pointing to the mounting death toll and telling us everyone should get a flu shot. Opponents of the flu vaccine are pointing to its limited effectiveness and saying: “Why bother. The risks outweigh the benefits.” As usual, the truth is somewhere in between.

When you examine the scientific literature it is clear that:

  • The risks of the flu shot have been greatly exaggerated.
  • The benefits of the flu shot have been greatly exaggerated.
  • The medical profession has not leveled with us about the real reason they recommend that everyone get a flu shot.

Is The Flu Shot Safe? 

should you get the flu shot this year safetyThe greatest fear of vaccination for children has been the claim that the flu vaccine causes autism. It is easy to understand how the hypothesis arose that vaccinations and autism might be linked.  This is because the first symptoms of autism usually appear around the time that children are completing their initial series of vaccinations.

However, clinical research has not substantiated any causal relationship between vaccinations and autism. It isn’t that scientists haven’t looked.  A few clinical studies have looked for a link between vaccinations and autism and have failed to find any. The age of onset and prevalence of autism are virtually identical in vaccinated and unvaccinated children.

Another frequently mentioned concern is the toxic adjuvants added to flu vaccines to make them more effective. The rationale for adding these compounds is complex, so let me give you a simple, non-scientific explanation.

We can think of adjuvants as toxins (for example, formaldehyde and aluminum). When our cells sense the presence of those toxic materials, they send out distress signals that, among other things, signal our immune system to mobilize its army to destroy any invaders. Our immune system then sends out scouts to check for invaders. These scouts sense the inactivated virus particles in the flu vaccine and signal our immune system to mount a vigorous immune response whenever those virus particles are detected.

Proponents of the flu vaccine will tell you the vaccine contains only small amounts of these toxins and most of us accumulate far higher amounts of these toxins from other sources in our day-to-day living. Personally, I dislike the idea of purposely ingesting any amount of toxins. However, our food supply has become contaminated and regulation of consumer goods has become weak. Unfortunately, the proponents of the flu vaccine are correct in saying our overall exposure to these toxins is much larger than what we accumulate through vaccinations.

Finally, most vaccines still contain mercury as a preservative, and mercury is a neurotoxin. So, if you are getting your child vaccinated, I recommend that you insist on getting a mercury free vaccine. You may also want to inquire about the adjuvants, preservatives and additives in the flu vaccine as well, because some of them are also toxic.

Beyond that, the biggest concerns are severe allergic reactions and an autoimmune response called Guillian-Barré syndrome which causes symptoms ranging from muscle weakness and fatigue to partial paralysis. These side effects are real, and they are serious, but they are also quite rare. They affect somewhere between 1 in a million to 1 in 100,000 children, depending on the vaccine.

In short, the risks associated with the flu shot are real, but they have been greatly exaggerated by some in the media.

Let’s Talk Science

should you get the flu shot this year scienceIt turns out that the benefits of the flu shot have been greatly exaggerated by health professionals and the media as well. However, to properly understand why the messages you hear are a bit misleading, you need to understand some scientific jargon, namely the difference between relative risk and absolute risk.

Relative risk describes the effect of an intervention for people with a certain condition. In this case, relative risk would be the effect of the flu shot (intervention) for people who have been infected with the flu virus (condition). Relative risk is often used in media reports because it magnifies the effect of the intervention. In short, it makes the intervention look really good.

Absolute risk describes the effect of an intervention on the probability that you will develop a certain condition. In this case absolute risk would be the effect of the flu shot on you actually getting the flu. Since this takes into account your probability of being infected by the flu virus as well as the relative risk reduction once you have become infected, it is a much smaller number. Absolute risk is a much better measure of the actual benefit you can expect to receive.

Finally, there is another factor that is usually overlooked. The flu vaccine is not affected by flu-like illnesses. Thus, the effectiveness of the flu shot at preventing you from getting sick is even lower than its effectiveness at preventing the flu. The average person cannot distinguish between the flu and a flu-like illness. That is why so many people will tell you: “I got a flu shot, but I got the flu anyway.”

Doctors also cannot distinguish with certainty between the flu and a flu-like illness unless they take a blood sample and test for the presence of the flu virus, which is almost never done. For that reason, reports of flu deaths are overestimates.

 

Should You Get the Flu Shot This Year Because it is  Effective?

should you get the flu shot this year effectiveThere is always year to year variation in the severity of the flu and the effectiveness of flu vaccines.

In addition, there is also significant variation in both the efficacy and evidence for efficacy in different population groups that is generally not acknowledged during the annual campaigns recommending that everyone should get a flu shot. To better understand that, we need to look at the efficacy of the flu shot in each population group individually.

 

Is The Flu Shot Effective in Children Age 6 Months To 2 Years?

 

In 2010, the US Advisory Committee on Immunization Practices began recommending flu vaccination for all healthy children older than 6 months. However, in 2012 the Cochrane Collaboration conducted a systematic review of all published clinical studies and concluded that for children in that age group currently licensed flu vaccines “are not significantly more effective than placebo”. [To fully understand the significance of that statement you need to know that the Cochrane Collaboration is an independent, non-profit organization that promotes evidence-based medicine. In fact, in the medical community Cochrane Collaboration systematic reviews are considered to be the gold standard for evidence-based medicine.]

Summary: This is one of the groups at greatest risk for developing severe complications to the flu, so it is disappointing that the flu vaccine is not more effective for this group. I will talk about the best way to protect this group below.

 

Is The Flu Shot Safe & Effective in Healthy Children Age 2 To 7 Years?

 

This is the age group for which immunization makes the greatest sense, and the nasal spray gives the best results for this group.  According to the 2012 Cochrane Collaboration review the flu shot reduces the relative risk of the flu by 48% and the nasal spray with attenuated live virus reduces the relative risk by 83%.

Since around 16% of unvaccinated children catch the flu in an average year this translates to an absolute risk reduction of 3.6% for the flu shot and 17% for the nasal spray. That is a smaller number, but still significant. This, of course, varies from year to year dependent on how well the vaccine matches the strains of virus that are actually circulating through the population. This year those numbers are significantly lower.

Summary: The science behind vaccination for this group has shifted significantly in the past few years. The evidence for the efficacy of the flu shot in this age group has increased while the evidence for harm has decreased. The fear of the flu shot causing autism has been largely disproven by recent clinical studies. That leaves concern about toxic ingredients, severe allergic reactions and the Guillian-Barré syndrome as the major complications of the flu vaccination.

Proponents of the flu vaccinations have estimated that if all children in this age range were vaccinated, around 200 would develop severe complications to the flu shot, and if all children in this age range were unvaccinated 20,000 would develop severe complications from the flu. I have not been able to independently substantiate those statistics. We also need to keep in mind there are rare years, such as during the 1976 swine flu epidemic, approximately 1 in 100,000 vaccinated children developed Guillian-Barré syndrome. The incidence of severe complications to the flu shot could have reached the 2-3,000 range if the vaccination program had not been terminated early.

I realize that this is an emotional issue for parents, and there is no perfect answer. However, at present the weight of evidence is slightly in favor of vaccination for this age group.

 

Is The Flu Shot Effective in Healthy Children Age 8 To 18 Years?

 

According to a recent meta-analysis of all available clinical studies (Oosterholm et al, The Lancet Infectious Diseases, 12: 36-44, 2012), we simply don’t know whether the flu vaccine will be effective in this age group because no reliable studies have been conducted.

Even worse than that, we may never know whether the flu shot offers any protection for this age group because of a Catch 22 situation in modern clinical research. Once a particular treatment becomes “the standard of care” it is considered unethical to withhold that treatment in a clinical trial. Since the CDC is now recommending the flu shot for everyone over age 2, it would be considered unethical to conduct a clinical trial in which half the population received flu shots and half did not.

Summary: I suspect that the flu shot may offer some protection in this age group, but there is no convincing clinical evidence to support that belief at present and for the foreseeable future.

 

Is The Flu Shot Effective in Healthy Adults Age 18 To 65 Years?

should you get the flu shot this year seniorsHere the answer is yes. According to a 2012 meta-analysis of 31 published clinical studies (Oosterholm et al, The Lancet Infectious Diseases) the flu shot gives an impressive 75% reduction in the relative risk of catching the flu. However, in an average year only 4% of this population will catch the flu if unvaccinated, so the absolute risk reduction is a modest 3%.

This is also the group that has the least to fear from the flu. Only about 1 in 100 people in this age range develop severe complications as a result of getting the flu, and these are usually the people with severe diseases and/or compromised immune systems. For most healthy adults in this age range, the flu is merely a one or two-day inconvenience.

Summary: For healthy adults in this age range, the flu vaccine offers only a modest decrease in the absolute risk of catching the flu, and this group has a relatively low risk of developing severe complications from the flu. If the self-interest of this group was the only consideration, it is hard to understand the insistence of the medical community that everyone in this age range get a flu shot. It would appear to be a matter of personal choice.

 

Is The Flu Shot Effective in Seniors Age 65 And Older?

 

Flu shot proponents will tell you that flu shots cut the risk of death in this group by 50% based on a meta-analysis published in 2002 (Vu et al, Vaccine, 20: 1831-1836, 2002).

However, more recent research has come to the opposite conclusion. A recent meta-analysis (Oosterholm et al, The Lancet Infectious Diseases, 12: 36-44, 2012) concluded “Evidence for protection in adults aged 65 years or older is lacking.”  The 2012 Cochrane Collaboration systematic review concluded “Due to the poor quality of available evidence, any conclusions regarding the effects of influenza vaccines for people aged 65 years or older cannot be drawn.”

The lack of protection of the flu virus in seniors is most likely due to the fact that, in many cases, their immune systems have weakened with age.

Summary: This is another group where you would most like to see protection by the flu shot. Because this group is likely to suffer severe complications and death from the flu, it is disappointing that the flu vaccine is not more effective for this group.

 

Who Has Most to Fear From The Flu?

 

When you hear that the flu shot significantly reduces the risk of severe complications and death from the flu, you should know that the risks are not spread evenly over the population. The very young are at risk because their immune systems haven’t fully developed. The very old are at risk because their immune systems have weakened with age and they may already be in precarious health because of other diseases. And, of course, anyone at any age who is in precarious health because of disease or who has a compromised immune system is at risk as well.

 

Why Do Health Professionals Recommend That Everyone Get A Flu Shot?

 

should you get the flu shot this year doctors reccomendIf you are a healthy adult in the 18-65 age range, your risk of severe complications and death from the flu is very low. It is not zero, but it is low. So why are health professionals so insistent that you need to get a flu shot?

The reason is straight forward, but it is not the reason that they are giving you.  It is a public health measure, pure and simple.

The very young, the very old, the sick and the infirm are the ones most likely to develop severe complications and die from a flu infection. However, the flu shot doesn’t offer them much protection because their immune systems are often compromised. The best way to protect those groups is to immunize everyone else. If the flu virus can’t gain a foothold in the rest of the population, those at greatest risk will never be exposed to the flu.

So, the constant warnings that you need to get a flu shot – even in a year in which the effectiveness of the flu vaccine is less than 10% – are less about protecting you than it is about protecting those whom you might infect. Now you know the truth. If you decide to get a flu shot, it will be for the right reason, not the reason you are being given by the medical profession.

The medical profession needs to level with people about why they are recommending flu shots, not use scare tactics that make promises the flu shot can’t deliver. This would be the perfect year for them to come clean because their usual rationale for getting the flu shot doesn’t hold water when its effectiveness is so low.

 

Should You Get the Flu Shot This Year?

 

As you can see, your decision about whether or not the flu shot is the right thing for you is not an easy one. Both the benefits and risks of the flu shot have been greatly exaggerated in the media. I have tried not to be an advocate either for or against flu vaccinations. I have evaluated the scientific literature and tried to give you the unvarnished truth. It is now up to you to make an educated decision – one that is right for you.

I will, however, share my decisions. In prior years, I did not have young children or elderly parents at home who might be compromised if I were to develop even a mild case of the flu. So, I chose to follow the kind of lifestyle that keeps my immune system strong rather than relying on a flu shot to protect me from the flu. Last year when my granddaughter was born, I got the flu shot before going out to California to visit her.

This year the efficacy of the flu shot was so low I didn’t bother with it. It would not have offered me or my granddaughter significant protection. Instead, I have focused on maintaining a strong immune system, I have been exposed multiple times, but so far, my immune system has kept it at bay.

 

The Bottom Line:

 

  • Both the effectiveness and risks of the flu shot have been greatly exaggerated.
  • The flu shot has no proven effectiveness in children ages 6 months to 2 years, children aged 8-18 years, and seniors 65 years and older.
  • In children, aged 2 to 7, nasal sprays with partially inactive flu virus usually give a 17% decrease in absolute risk of catching the flu. Side effects of the flu vaccine in this population group are severe allergic reactions and an autoimmune response called Guillian-Barré syndrome. Both severe complications from the flu virus and side effects of the flu vaccine are very rare, but complications from the flu virus are several-fold more common than side effects from the vaccine.
  • Fears that the flu vaccine could trigger autism have not been validated by clinical studies. However, mercury is a neurotoxin, so I recommend that you insist on mercury-free vaccines for your children. You may also wish to inquire about other adjuvants, preservatives and additives in the vaccine because some of them are toxic.
  • In healthy adults, aged 18 to 65, flu shots give a 3% decrease in absolute risk of catching the flu. This is also the population group with the lowest risk of severe complications from the flu. For most adults in this age group, the flu is nothing more than a one or two-day inconvenience.
  • The groups most likely to develop severe complications and die from flu infections are the very young, the very old, and the sick. They are also the groups least likely to benefit from the flu shot because their immune systems are weak.
  • If you are a healthy adult in the 18 to 65 age group, the constant warnings that you need to get a flu shot are less about protecting you than they are about protecting those whom you might infect if you catch the flu. It is a public health measure to protect the very young, the very old, and the sick. Now you know the truth. If you decide to get a flu shot, it will be for the right reason, not the reason you have been given by the health profession.
  • This year the decision of whether or not to get a flu shot is even more difficult because the flu vaccine offers you and the people you might expose so little protection.

 

These statements have not been evaluated by the Food and Drug Administration. This information is not intended to diagnose, treat, cure or prevent any disease.

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Comments (4)

  • Caroline

    |

    What I have seen is pneumonia and not flu. The flu shot has always been evil due to the chemicals in it, not truly effective and weakens the system to more and harder disease conditions. Pneumonia this year has been horrendous and even my primary doctor and agree that this is what has been killing people. It is also the only vaccination I recommend while all the others are dubious in their contents and results. Today little ones are to taken on some 69 or more vaccinations, all of which weakens their immune system and apparently does affect their yet fully developed brains. Also since the flu is not truly working well for the immune system, most had to return for an ADDITIONAL flu shot. The first flu shot out actually killed my father in 3 days, so I always view it as shooting yourself in the head!

    Reply

  • Leona

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    Wow, the facts! How refreshing to have someone layout all the facts in the most unbiased way! SO appreciate it! Thank you.

    Reply

  • Sonja Swanigan

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    I do not get flu shots because I had a medical text book reaction in the. 70′ s. A large goose eye sized hive appeared at the sight which was red a very feverish. My doctor told me never to get another flu shot. I am sensitive to eggs. and prefer not to eat them . My adult daughter had a similar reaction several years ago and her doctor not to get any more flu shots. My current doctor keeps pushing flu shots. and insists I need one. I stand my ground and tell him I do not want it. I take Shaklee to boost my immune system and have a fixed getting the flu mos years. Do you have any wisdom to share?

    Reply

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These statements have not been evaluated by the Food and Drug Administration. This information is not intended to diagnose, treat, cure or prevent any disease.

 

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