Tag: flu shot myths

Do They Really Just Guess at Which Strain to Put in the Flu Vaccine?

Every year we hear experts telling us to get vaccinated against the flu.

And more often than not, we hear critics telling us that the flu vaccine isn’t going to work that well because it isn’t a good match.

Is that because they just guess at which flu strains to put into the flu vaccine each year, as some folks say?

Do They Really Just Guess at Which Strain to Put in the Flu Vaccine?

Of course they don’t guess at which vaccine strain to put in the flu vaccine!

“Flu viruses are constantly changing, so the vaccine composition is reviewed each year and updated as needed based on which influenza viruses are making people sick, the extent to which those viruses are spreading, and how well the previous season’s vaccine protects against those viruses.”

CDC on Selecting Viruses for the Seasonal Influenza Vaccine

There are over 100 flu centers in over 100 countries that are involved in testing thousands of flu virus samples each year. Representative samples from these centers then go to the five major World Health Organization (WHO) Collaborating Centers for Reference and Research on Influenza.

The directors of these centers review these samples and other available information and make a recommendation on which vaccine strains to include in the flu vaccine for the next flu season. Each country then considers this recommendation and decides which flu strains to include in their flu vaccine.

“The influenza viruses in the seasonal flu vaccine are selected each year based on surveillance data indicating which viruses are circulating and forecasts about which viruses are the most likely to circulate during the coming season.”

CDC on Selecting Viruses for the Seasonal Influenza Vaccine

Although they don’t have a crystal ball and so can’t know exactly which flu strains will be making us sick each flu season, it is hardly a wild guess.

How often are they right?

“During seasons when most circulating influenza viruses are closely related to the viruses in the influenza vaccine, the vaccine effectiveness estimate has ranged from 50-60% among the overall population.”

WHO on Vaccine effectiveness estimates for seasonal influenza vaccines

Actually, they are right in most years! So if it is a guess, than the folks who choose which strains to include in the flu vaccine are very good guessers!

Except for a few years when their was a poor match, the flu season is typically between 37 to 60% effective.
Except for a few years when their was a poor match, the flu season is typically between 37 to 60% effective.

There have actually only been a few times in recent years when we have had mismatched flu strains. And in one of those years, they picked the right strain, but then the strain changed or drifted before the start of flu season.

“One hundred fifty-six (22%) of the 709 influenza A(H3N2) isolates were characterized as antigenically similar to A/Wyoming/3/2003, which is the A/Fujian/411/2002-like (H3N2) component of the 2004-05 influenza vaccine, and 553 (78%) were characterized as A/California/7/2004-like.”

2004-05 U.S. Influenza Season Summary

Not surprisingly, flu vaccine effectiveness goes way down during a mismatch year. During the 2004-05 flu season, for example, the overall vaccine effectiveness of the flu vaccine was just 10%.

Of course, in most years, flu vaccine is typically much more effective than that.

How effective will flu vaccines be this season?

Will this year’s flu vaccine be a good match?

We won’t know until flu season is well under way, not that you should wait for an answer to get your flu vaccine. The benefits of the flu vaccine extend beyond preventing the flu, so it is a good idea to get vaccinated even in a year when there might not be a good match.

More on Selecting Flu Vaccine Strains

Which Flu Vaccine Should You Get?

After decades with a single type of flu vaccine – the flu shot – there are now many different kinds of flu vaccines that many of us can choose from. And your choices are not just between the nasal spray flu vaccine vs a flu shot. There are also a lot of different kinds of flu shots available now.

Everyone needs a flu shot. When will you get yours?
Everyone needs a flu shot. When will you get yours? Photo by Gabriel Saldana (CC BY-SA 2.0)

Having choices is nice.

It would be also be nice to have a little more guidance on what to do with these choices.

Are any of the flu vaccines better than others?

Which Flu Vaccine Should You Get?

This year, we will have:

  • quadrivalent flu shots – Afluria, Fluarix, FluLaval, Fluzone, Fluzone Pediatric Dose
  • quadrivalent flu shots that are cell-culture based – Flucelvax
  • quadrivalent flu shots that can be given intradermally – Fluzone Intradermal
  • trivalent flu shots – Afluria
  • trivalent flu shots that are adjuvanted – Fluad
  • high dose trivalent flu shots – Fluzone High-Dose
  • quadrivalent flu shots that are made with recombinant technology – Flublok
  • nasal spray flu vaccine – Flumist

Which one should you get?

It is actually easy to start by asking which one you should get for your kids, as many of these flu vaccine options are only available for adults and seniors.

Flu Vaccine Options

Before you start thinking too long and hard about potential options, keep in mind that you might not have as many options as you think.

“Not all products are likely to be uniformly available in any practice setting or locality. Vaccination should not be delayed in order to obtain a specific product when an appropriate one is already available.”

Prevention and Control of Seasonal Influenza with Vaccines: Recommendations of the Advisory Committee on Immunization Practices—United States, 2018–19 Influenza Season

Doctors and clinics might not stock multiple brands or types of flu vaccines, so you might have to get whatever flu vaccine that they have available.

“Within these guidelines and approved indications, where more than one type of vaccine is appropriate and available, no preferential recommendation is made for use of any influenza vaccine product over another.”

Prevention and Control of Seasonal Influenza with Vaccines: Recommendations of the Advisory Committee on Immunization Practices—United States, 2018–19 Influenza Season

And that’s okay. In most cases, there haven’t been head to head studies showing that one flu vaccine is better than another.

Flu Vaccine Options for Kids

Still, since these options might be available to you, it is good to know about them.

This year, younger kids, between the ages of 6 months and 3 years, can either get:

  • FluLaval Quadrilvalent
  • Fluarix Quadrivalent
  • Fluzone Quadrivalent Pediatric

While you are unlikely to notice a difference, both FluLaval and Fluarix are given at a 0.5ml dose containing 15 µg of HA per vaccine virus, while Fluzone is given at a 0.25ml dose containing 7.5 µg of HA per vaccine virus. Why the difference? “Safety and reactogenicity were similar between the two vaccines,” even at the different doses.

Basically, these are just different brands of the same type of flu shot.

There are even more options as your kids get older though, including  Fluzone Quadrivalent (age three and above), Afluria Quadrivalent or Trivalent (age five and above), Flucelvax Quadrivalent (age four and above), FluLaval and Fluarix.

Of these, some folks wonder if Flucelvax, since it isn’t made in chicken eggs, might be more effective than the others. Remember, one of the things that are thought to make the flu vaccine less effective than most other vaccines is that they are made in eggs, leading to mutations. And there is actually some evidence that those flu vaccines that are not made in eggs might be more effective.

“And the University of Pittsburgh Medical Center is taking that a step further, saying it will only be buying the two egg-free vaccines on the market: Flucelvax and FluBlok. That’s because there is some evidence these two formulations may work better than the older vaccines grown in eggs, said Dr. Richard Zimmerman, who advises the UPMC Influenza Committee.”

Guidance on which flu vaccine to get: Shots for kids, maybe go egg-free

Again, remember that the CDC has made “no preferential recommendation” for one flu vaccine over another. Why not? We don’t have enough information to make that kind of recommendation.

Should parents only ask for Flucelvax? That would only work if they made enough doses for every kid to get vaccinated, which they didn’t. Should you hold out until you can find FluceIvax for your kids? No, since doing that might leave them unvaccinated once flu season hits.

What else should you know about your flu vaccine options? While over 80% of flu vaccines are now thimerosal free, most of these flu vaccines are still available in multi-dose vials with thimerosal.

Also thimerosal free, this year, Flumist is back as an option. It is available for healthy kids who are at least two years old. Although the AAP has issued a preference for flu shots this year, the ACIP says that kids can get either Flumist or a flu shot.

What about if your kids are allergic to eggs?

“Persons who report having had reactions to egg involving symptoms other than urticaria (hives), such as angioedema, respiratory distress, lightheadedness, or recurrent emesis; or who required epinephrine or another emergency medical intervention, may similarly receive any licensed, recommended, and age-appropriate influenza vaccine (i.e., any IIV, RIV4, or LAIV4) that is otherwise appropriate for their health status.”

Prevention and Control of Seasonal Influenza with Vaccines: Recommendations of the Advisory Committee on Immunization Practices—United States, 2018–19 Influenza Season

Unless they had a severe allergic reaction to a previous flu vaccine, they can get any available flu vaccine, especially if the previous reaction was only hives or they are able to eat eggs.

What if you want a flu vaccine without aluminum? Take your pick. While it would be safe it was, aluminum is not an ingredient in flu vaccines.

Flu Vaccine Options for Adults

In addition to all of the flu vaccines available for older kids, adults have a few more options:

  • Afluria Quadrivalent or Trivalent can be given by jet injector  to those between the ages of 18 and 64 years
  • Flublok Quadrivalent – a recombinant flu shot that can be given to those who are at least 18 years old
  • Fluzone High-Dose – a trivalent flu shot with a higher dose of flu virus antigens (4 times the amount of antigen as a regular flu shot) that is available for seniors who are at least 65 years old
  • Fluad – a trivalent flu shot with an adjuvant that is available for seniors who are at least 65 years old

Why get a flu vaccine with a jet injector instead of a standard needle? High-pressure jet injectors don’t use needles!

Like FluceIvax, Flublok is not made in chicken eggs. The recombinant hemagglutinin(HA) proteins are made in insect cell lines. Does Flublok work better than egg based flu vaccines? That’s the theory, but again, there is no preference for one of these vaccines over another.

Seniors have even more choices.

Should they get Fluzone High-Dose, Fluad, or one of the other flu vaccines? Both have been shown to be more effective than standard flu vaccines in seniors, but they have not been compared against each other.

“In a Canadian observational study of 282 people aged 65 years and older conducted during the 2011-12 season, Fluad was 63% more effective than regular-dose unadjuvanted flu shots.”

CDC on People 65 Years and Older & Influenza

But neither Fluzone High-Dose nor Fluad are quadrivalent, so only protect against three flu virus strains.

Is there a quadrivalent flu shot for older adults that might work better than standard flu shots?

Yes. FluceIvax and Flublok are non-egg based quadrivalent flu shots that might be more effective than standard flu vaccines.

So are you more confused now that you know you have so many options? Just remember that for most people, the mistake isn’t about choosing the right flu vaccine, it is about not getting vaccinated.

What to Know About Your Flu Vaccine Options

While it might seem like you have a lot more options in a flu vaccine this year and that some might be more effective than others, keep in mind that availability will likely greatly limit these “options.”

And the best flu vaccine is the one that you actually get, as it will be the one that reduces your risk of getting the flu. Missing your chance to get vaccinated and protected because you are waiting for a specific brand or type of flu vaccine isn’t going to help keep the flu away.

More on Your Flu Vaccine Options

Can Flu Shots Cause the Flu?

Most folks get a flu shot each year.

Most, but not all.

Some people still think that getting a flu shot will cause them to have the flu.
Some people still think that getting a flu shot will cause them to have the flu.

Why do some people skip it?

Can Flu Shots Cause the Flu?

Yes, some people think that getting a flu shot will actually cause them to get the flu.

It’s not hard to see why though.

The flu vaccine is not the most effective vaccine we have, so it is certainly possible that you can still get sick with the flu even though you have had your flu vaccine. Of course, that’s not a good reason to skip getting a flu vaccine, as they have lots of benefits.

Some other reasons you might still think that the flu vaccine can cause the flu include that:

  • side effects after a flu shot can include a soreness, low-grade fever, headache and muscle aches, which some people might confuse with a mild case of the flu
  • many other respiratory viruses can make you sick during cold and flu season, none of which the flu vaccine protects you against
  • since the flu vaccine takes about two weeks to work, if you got sick shortly after being vaccinated, you may have already been exposed and developed the flu before the vaccine became effective

But why can’t the flu shot cause the flu?

That’s easy.

It’s because the flu shot is an inactivated vaccine. The influenza virus is killed or inactivated, the viral particles are purified and split up, with only the HA and NA surface glycoproteins remaining. Those glycoproteins can not cause a natural flu infection.

What about Flumist, the nasal spray flu vaccine?

While Flumist is a live virus vaccine, it is made with attenuated or weakened strains of the flu that are cold-adapted, unable to replicate at the warmer temperatures that are found in the lungs and other areas of our bodies.

So Flumist doesn’t cause the flu either.

Hopefully this is one vaccine myth that folks will stop spreading. Remember, flu vaccines don’t cause you to get sick with the flu. Get vaccinated. Flu vaccines are your best protection against the flu.

What about those folks who say that they are going to skip the flu shot because they never get sick with the flu?

They are gambling.

It is estimated that about 5 to 20% of people get the flu each year. Unless you are rarely around other people during flu season, the chances are that you will eventually get the flu, especially if you are unvaccinated and unprotected.

More on the Myth that Flu Shots Cause the Flu

When Should I Get My Flu Shot?

For most the folks, the real question isn’t if they should get a flu shot, but when.

When Should I Get My Flu Shot?

The original flu shot recommendations  were based on the fact that flu vaccine became available for distribution in September, but was not completed until December or January. And that high-risk folks should get vaccinated “to avoid missed opportunities for vaccination” if flu vaccine was available in September and they were already at a doctor’s appointment or in the hospital.

Everyone needs a flu shot. When will you get yours?
Everyone needs a flu shot. When will you get yours? Photo by Gabriel Saldana (CC BY-SA 2.0)

But for most people, the original recommendation was really that “the optimal time for vaccination efforts is usually during October–November.”

“Persons and institutions planning substantial organized vaccination campaigns (e.g., health departments, occupational health clinics, and community vaccinators) should consider scheduling these events after at least mid-October because the availability of vaccine in any location cannot be ensured consistently in early fall. Scheduling campaigns after mid- October will minimize the need for cancellations because vaccine is unavailable.”

Prevention and Control of Influenza Recommendations of the Advisory Committee on Immunization Practices (2006)

What was the problem with this strategy?

Early flu seasons.

And trying to vaccinate over 100 million people in such a short time.

While it might work fine if flu season doesn’t hit until January or February, waiting until mid-October could leave a lot of folks unvaccinated if you had an early flu season that was peaking in November or December.

Fortunately, we don’t have to rush to get people vaccinated so quickly anymore. For one thing, manufacturers have gotten much better at distributing flu vaccine and are able to get a lot of the doses out at the very beginning of flu season. And with more manufacturers, we are seeing fewer delays and shortages of flu vaccine than we used to.

That’s why the recommendation on the timing of flu vaccination has changed over the years.

“In general, health-care providers should begin offering vaccination soon after vaccine becomes available and if possible by October. To avoid missed opportunities for vaccination, providers should offer vaccination during routine health-care visits or during hospitalizations whenever vaccine is available.”

Prevention and Control of Influenza Recommendations of the Advisory Committee on Immunization Practices (2010)

That nice, simple message has changed yet again though.

To balance the concerns that getting a flu shot too early might leave you unprotected at the end of a late flu season, but getting a flu shot too late might leave you unprotected at the beginning of an early flu season, the latest recommendations from the CDC on the timing of flu vaccination aren’t so clear cut:

  • Balancing considerations regarding the unpredictability of timing of onset of the influenza season and concerns that vaccine-induced immunity might wane over the course of a season, it is recommended that vaccination should be offered by the end of October.
  • Community vaccination programs should balance maximizing likelihood of persistence of vaccine-induced protection through the season with avoiding missed opportunities to vaccinate or vaccinating after onset of influenza circulation occurs.
  • Revaccination later in the season of persons who have already been fully vaccinated is not recommended.
  • Vaccination should continue to be offered as long as influenza viruses are circulating and unexpired vaccine is available.
  • To avoid missed opportunities for vaccination, providers should offer vaccination during routine health care visits and hospitalizations.
  • Optimally, vaccination should occur before onset of influenza activity in the community.
  • Although vaccination by the end of October is recommended, vaccine administered in December or later, even if influenza activity has already begun, is likely to be beneficial in the majority of influenza seasons.

What’s the problem with these recommendations?

If everyone waits until the end of October to get vaccinated, then you might have a hard time getting a flu vaccine. And you might get stuck if you try and time your flu shot with the onset of flu activity. Unless you have a crystal ball, you don’t know when flu season is going to start.

Still, it is important to note that the CDC doesn’t actually say to wait until the end of October. They say to get vaccinated by the end of October. Getting your kids vaccinated as soon as you can is the best way to make sure that happens.

Could getting a flu shot early leave your kids unprotected at the very end of flu season?

Maybe, but that’s typically when flu activity is low. And we have that same type of low flu activity in early October, well before flu season peaks.

So just remember that your child could end up unvaccinated and unprotected if you mistime their flu vaccine.

What to Know About the Best Time to Get a Flu Vaccine

Experts say to get vaccinated by the end of October. Getting your kids vaccinated as soon as you can is the best way to make sure that happens.

More on the Best Time To Get a Flu Vaccine

Myths About Thimerosal in Vaccines

Over the years, especially since thimerosal was removed from most vaccines, the myths about thimerosal have surprising been increasing.

“Currently, the actions taken by the vaccine manufacturers, the FDA and the CDC have increased the possible maximum childhood exposure to mercury from vaccines to twice the level that triggered the 1999 call to remove mercury from all vaccines as soon as possible!”

Rev. Lisa K. Sykes on “Ten Lies” Told About Mercury in Vaccines

Of course, none of them are true.

Myths About Thimerosal in Vaccines

To begin with, there was no “call to remove mercury from all vaccines as soon as possible.”

Instead, as a “precautionary measure,” the AAP asked vaccine manufacturers “for a clear commitment and a plan to eliminate or reduce as expeditiously as possible the mercury content of their vaccines.”

“In addition, today most tetanus shots and the multi-dose Sanofi Menomune vaccine that are approved by the US Food and Drug Administration (FDA) still contain 25-micrograms-a-dose mercury.”

Rev. Lisa K. Sykes on “Ten Lies” Told About Mercury in Vaccines

Other myths about thimerosal include that:

  • After “realizing” the amount of mercury in the childhood vaccination schedule recommended by the CDC exceeded all national and global maximum safety limits, the American Academy of Pediatrics and the United States Public Health Service called for the immediate removal of Thimerosal from all vaccines on July 7, 1999. – the amount of thimerosal in the childhood immunization schedule actually only exceeded EPA guidelines and was well below the guidelines of the Agency for Toxic Substances Disease Registry (ATSDR) or the FDA. Also, since thimerosal-free versions of DTaP and Hib have always been available, only “a minority of infants could receive as much as 187.5 mg of ethylmercury during the first 6 months of life.”
  • children are getting even more mercury from vaccines today than when mercury was removed from vaccines, because pregnant women and kids get flu shots now – this theory doesn’t take into account that thimerosal-free flu vaccines have been available since 2003 and until recently, many kids didn’t get flu shots. For example, during the 2008-09 flu season, only 25% infants and toddlers were fully vaccinated against flu and even fewer pregnant women got flu shots (about 15%). The only way this myth could possibly be true would be if these folks all got a flu vaccine with thimerosal each and every year.
  • even as thimerosal was removed from the DTaP, Hib, and hepatitis B vaccines, kids still got exposed to thimerosal from other vaccines, like Menomume, the meningococcal vaccine –  Although Menomume contained thimerosal, it had only been recommended for high risk kids since it was approved in 1981. It was later replaced by Menactra and Menveo, both of which are thimerosal-free, and which were recommended to all kids as they provided better coverage. Menomume was discontinued in 2017 and it is unlikely that many kids got it once Menactra and Menveo became available.
  • kids still get a tetanus shot with thimerosal – yes, they did, at least until the Tdap vaccines were approved in 2006. Tdap is thimerosal-free.
  • Thimerosal has never undergone even one modern safety test. – although mercury can be toxic, the thimerosal in vaccines has been shown to be safe. That’s not surprising – remember, “the dose makes the poison.”
  • Published studies have shown that Thimerosal and its mercury breakdown product contribute to: Alzheimer’s, Cancer, Autism Spectrum Disorders, Attention Deficit Disorders, Bipolar Disorder, Asthma, Sudden Infant Death Syndrome, Arthritis, Food Allergies, Premature Puberty, and Infertility. – thimerosal in vaccines doesn’t cause any of these things, but you can probably find a published study somewhere saying that thimerosal causes Alzheimer’s, cancer, or food allergies, etc., but that just points to how important it is to look to trusted sources of information, as almost anyone can publish a bad study
  • Contrary to sound bites you hear on the nightly news, to be “anti-mercury” is not to be “anti-vaccine.” – if this is true, then why did Robert F. Kennedy, Jr write an editorial against University of Colorado students who passed a resolution for meningococcal B vaccines, which are thimerosal-free? And why push so much propaganda about thimerosal?
  • Corresponding to the sharply increasing level of mercury in the immunization schedule globally, which started in the late 1980’s, there has been an increasing rate of autism among children. This also explains why autism among 40-, 50-, 60-, 70- and 80-year-olds is not epidemic, but rather rare. – this is one of the main problems of the anti-vaccine movement… if you believe that autism is an epidemic, then there must be a cause and it becomes easy to blame vaccines. You also have to ignore the fact that there are plenty of autistic adults.
  • Among the Amish who do not vaccinate, the rate of autism is strikingly low. – there are autistic Amish
  • Unused vaccines with a preservative level of Thimerosal, however, are considered hazardous waste because of their high mercury content. If not injected into patients, discarded vials of these mercury-preserved vaccines, therefore, must be disposed of in steel drums, by law. – this is not true – at all… you also don’t have to call a Hazmat team if you break an unused vaccine vial with thimerosal…
  • …instead of requiring immediate removal, the CDC allowed the pharmaceutical companies to save money by using up their inventories of mercury-containing vaccines. By 2003, the industry had finally used up stocks of thimerosal-containing vaccines and Thimerosal is no longer used in these three vaccines. – the only basis for this statement is that the last thimerosal containing DTaP, Hib, and hepatitis B vaccines expired in 2003, but it is important to keep in mind that most vaccines are used well before their expiration date. In fact, many doctors order vaccines every month, so as to not keep large supplies of vaccines in their office, and since thimerosal-free versions were already available, those likely would have been ordered.
  • The term “trace amounts” means less than 1 microgram (mcg). Thimerosal-containing flu shots contain what in biochemical terms is actually a massive dose of mercury: 25 mcg. – vaccines labeled as having a trace amount of thimerosal have less than or equal to 1mcg, while others are clearly labeled as having up to 25mcg.
  • Why do I call that massive? Because the Environmental Protection Agency’s maximum exposure limits for methyl mercury is .1 microgram per 1 kilogram of bodyweight, which means a baby would have to weigh 550 pounds to safely absorb 25 micrograms of mercury. At these levels, a growing fetus in a mother receiving the flu shot could get up to a million times the EPA’s safe levels. – wait, what? First, that is the maximum recommended daily exposure limit based on the assumption that the exposure to mercury will continue for long periods of time. That’s not the case when a pregnant woman gets a one time flu shot. And it is the pregnant mother who is getting the flu shot, not the baby. Although some thimerosal will cross the placenta, it is still not in levels that will cause harm, so calling the dose massive ends up just being an obvious propaganda tool to scare folks.
The review, Thimerosal and Autism?, explains why autism and mercury poison really don't share symptoms.
The review, Thimerosal and Autism?, explains why autism and mercury poison really don’t share the same symptoms.
  • Autism and mercury poisoning have the same symptoms. – they don’t… In fact, there are many reports of epidemics of mercury poisoning throughout history that weren’t associated with autism, including in Minamata and Niigata, Japan, exposures from mercury in teething powders and worm medicines (pink disease), and food contamination in many countries.

“Yet mercury had long been the every-day treatment of infants at the time of teething in the form of teething powders.”

Ann Dally on The Rise and Fall of Pink Disease

Although it is hard to believe now, mercury wasn’t taken out of teething powders until 1957, after which time pink disease quickly disappeared. Why was mercury in teething powders in the first place? Unlike thimerosal in vaccines, I don’t think it was acting as a preservative, as it sounds like it was present in very high doses. So there was a lot of risk with no benefit.

Sounds like the opposite of what we had with thimerosal in vaccines – lots of benefit (vaccines didn’t get contaminated) with no risk.

But taking thimerosal out of vaccines was risk-free too, wasn’t it?

Nope. That’s another myth.

“Unfortunately, the precautions taken by the AAP and CDC calling for thimerosal removal from vaccines appears to have led to unintended risks. In particular, inappropriate recommendations by autism advocacy groups regarding treatment of autism (e.g., use of chelation) and avoidance of vaccines (e.g., influenza vaccine) may mislead parents to place children at unnecessary risks.”

Hurley et al on Thimerosal-Containing Vaccines and Autism: A Review of Recent Epidemiologic Studies

In addition to anti-vaccine folks continuing to push myths about thimerosal to scare parents away from vaccinating and protecting their kids, some missed out on getting vaccinated and caught life-threatening vaccine-preventable diseases.

What to Know About Thimerosal in Vaccines Myths

Don’t believe any of the myths about thimerosal in vaccines. Vaccines are safe and necessary.

More on Thimerosal in Vaccines Myths

Why Does the FDA Warn About Mercury in Fish, but Not Mercury in Flu Shots?

The FDA and EPA began to warn certain high risk groups about eating fish that might be contaminated with high levels of mercury in 2004.

Although it was known that “nearly all fish and shellfish contain traces of mercury,” this wasn’t thought to be a health concern for most people. Higher levels of mercury in certain fish could be though, especially for young children, nursing mothers, pregnant women, and women who might become pregnant.

That’s why the EPA and FDA recommended that those high risk groups not eat Shark, Swordfish, King Mackerel, or Tilefish (have highest levels of mercury) and limit eating other fish that are lower in mercury.

Why Does the FDA Warn About Mercury in Fish, but Not Mercury in Flu Shots?

So why do experts warn about mercury in fish, but don’t warn about mercury in vaccines?

Trace Amounts on “Ten Lies” Told About Mercury in Vaccines
Trace Amounts thinks that they have uncovered “Ten Lies” about mercury in vaccines

While that is a good question, the most obvious answer is that there are a very limited number of vaccines that you can get that contain any mercury (thimerosal), while if there was no warning, you could theoretically eat a ton of fish that are contaminated with at least some mercury.

And since 2001, thimerosal-free versions of non-flu vaccines have been available. There has also been an increasingly large supply of thimerosal-free flu vaccines available since 2003.

So how much mercury from vaccines could pregnant women and young children really be getting?

Remember, the only routine vaccines that pregnant women get are Tdap (never contained thimerosal) and the flu vaccine. And all of the routine vaccines young children receive are now thimerosal-free, including DTaP, Hib, IPV, Rotavirus, and Prevnar. All children should also get a flu vaccine once they are six months old, but like the flu vaccines for pregnant women, thimerosal-free flu vaccines are available.

Still, if they didn’t get a thimerosal-free flu shot, it would mean that they got the amount of mercury from one flu shot each year, or 25mcg. Some children could get up to 50mcg if it was their first season getting a flu vaccine, as they might need two doses of the flu vaccine.

The FDA and EPA offer very specific recommendations on how much fish to eat to avoid mercury.
The FDA and EPA offer very specific recommendations on how much fish to eat to avoid mercury.

How much mercury do you ingest when you eat fish? It depends on the fish, which is why the recommendations on which fish to eat and avoid are so specific. In general, it can range from 4mcg for salmon, 60mcg for canned albacore tuna and 170 mcg for swordfish.

While you are supposed to avoid the fish with the highest mercury levels, you might be eating the other fish each week, so unless you don’t like to eat fish, it is almost certainly going to quickly add up to much more than you get from your yearly flu vaccine, which you likely avoided anyway by getting a thimerosal-free flu shot.

And with fish, the mercury is in the form of methymercury, 95% of which is absorbed into your bloodstream. In contrast, thimerosal in vaccines breaks down to ethylmercury and is eliminated from your body quicker than methylmercury.

But if fish contains mercury, why not just tell people to avoid eating fish?

“Most fish are an excellent source of high quality protein. Fish are also important sources of selenium, zinc, iodine, iron, and other minerals needed by the body. Fish are natural sources of many B vitamins, and oily fish provide vitamins A and D. Studies with pregnant women have found that the nutritional benefits of fish, like other protein-rich foods, are important for their children’s growth and development during pregnancy and childhood. Most fish are low in fat, and most of the fat that is present in fish is healthy polyunsaturated fat. The polyunsaturated omega-3 fatty acids eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) are also present in many types of fish. Research is still underway to determine the health benefits of omega-3 fatty acids.”

Questions & Answers from the FDA/EPA Advice on What Pregnant Women and Parents Should Know about Eating Fish

Fish have a lot of important nutrients, so are good to eat. So you balance the benefits of eating fish with the risks of mercury contamination and we get the sensible advice to limit the amount of fish you eat.

When you do the same kind of analysis of the risks and benefits of vaccines, even those with thimerosal, the benefits are still greatly in favor of getting vaccinated to prevent life-threatening infections. Remember, thimerosal was removed from vaccines as a precautionary measure and not because it was proven to be dangerous. In fact, many studies have shown that thimerosal in vaccines is not harmful.

What to Know About Mercury in Fish and Vaccines

Comparing mercury in fish and vaccines is like comparing conventionally grown apples and pears, at least it would be if someone figured out how to make an edible vaccine in the form of a pear.

More on Mercury in Fish and Vaccines

I Refuse to Listen to Bad Advice About Flu Shots, and I Won’t Apologize for It

The only thing that seems to be more rampant than the flu this season are the articles pushing people to skip a flu shot.

POPSUGAR moms will hopefully go somewhere else for advice about flu shots.
POPSUGAR moms will hopefully go somewhere else for advice about flu shots.

They. Are. Everywhere.

I Refuse to Listen to Bad Advice About Flu Shots

Why are we seeing so many folks attacking flu shots lately?

It’s simple. A bad flu season reminds people that they should get vaccinated and protected. We see the same thing when there are outbreaks of measles, mumps, and pertussis, etc.

And then those folks who are truly anti-vaccine have to come out and justify why they still don’t believe in vaccines.

That leaves us with arguments like this:

“Whenever I start to get worried that I’ll end up with the flu if I don’t get the shot, I remember that it isn’t always effective.”

Jen Glantz on Do You Need To Get A Flu Shot?

It is true that the flu shot is not always effective, but if you are only going to use things that are 100% effective, then why would you take “lots of vitamins and natural supplements” when you have the flu, things that have been shown to be ineffective?

“Side effects can include soreness around the injection side, a low-grade fever for a few days, and muscle aches. Now, I know that this may seem like a small price to pay to avoid getting the full-blown flu, but if I can avoid any sickness at all, why not try?”

Jen Glantz on Do You Need To Get A Flu Shot?

Uh, if you want to try and avoid any sickness, why not get a flu shot? Even when it isn’t as effective as we would like, a flu shot can help reduce your chance of hospitalization, serious flu complications, and of dying with the flu.

“Have you ever taken a step back and learned more about what the heck is actually inside the flu shot? ”

Jen Glantz on Do You Need To Get A Flu Shot?

I know exactly what’s in the flu shot.

Does anyone at POPSUGAR?

Got something you want published online? Head over to POPSUGAR...
Got something you want published online? Head over to POPSUGAR…

Even with a disclaimer from an Editor, POPSUGAR should be ashamed of themselves for publishing an article that says the flu shot is filled with toxins. In addition to an ingredients list, the CDC explains that “all ingredients either help make the vaccine, or ensure the vaccine is safe and effective.”

Flu shot ingredients are not toxins!

“Instead of injecting myself with toxins, I do things like practice good hygiene, take lots of vitamins and natural supplements, and rely on my body and it’s strength to fight off any unwanted bacteria. The human body is an incredible thing, and I trust it. I also like it to ride out things naturally.”

Jen Glantz on Do You Need To Get A Flu Shot?

The flu is a virus, not a bacteria, but I get the point that the author is attempting to make. The thing is though, that while the human body is certainly incredible, relying on it to get you over the flu is not always an easy ride. We often have to pay a high price for natural immunity.

And the people who die with the flu don’t die because of poor hygiene or because they don’t take enough vitamins and supplements. They die because they have the flu. And more often than not, especially in the case of children, because they are unvaccinated.

“For some people, getting the flu shot is at the very top of their to-do list, but for me, it’s something I refuse to do. And that’s OK too.”

Jen Glantz on Do You Need To Get A Flu Shot?

It is certainly OK that Jen Glantz doesn’t get a flu shot each year. At least it is OK as long as she doesn’t get the flu and give it to someone else.

It is not OK that POPSUGAR gives her a voice on such an important topic. Don’t listen to them.

It’s not as big a deal when she writes about the “importance” of drinking both hot and cold water each day, drinking apple cider vinegar for bloating, the best baby names of the year, or how to pee when wearing a wedding dress. That’s the kind of clickbait type content you expect from a POPSUGAR type site.

But scaring people and making them think that there are toxins in flu shots?

Save it for GOOP.

What to Know About Bad Flu Shot Advice

This year’s bad flu season wasn’t limited to folks getting sick… There was also a lot of bad flu shot advice going around.

More on Bad Flu Shot Advice