Category: Vaccine Misinformation

Can MMR Shedding Start a Measles Outbreak?

Have you ever noticed that any time that there is a new outbreak of measles, folks tend to ask the same basic questions.

How did the outbreak start?

Why weren’t they vaccinated?

Was it from shedding?

Wait, what?

Shedding??? Really?

Can MMR Shedding Start a Measles Outbreak?

It seems that the idea that the MMR vaccine sheds and can lead to measles outbreaks is one of those anti-vaccine myths that just won’t go away.

It comes back with each new measles outbreak.

The myth that MMR shedding leads to measles outbreaks is commonly spread on Facebook, like this discussion on a recent outbreak at a Kansas City daycare center.
The myth that MMR shedding leads to measles outbreaks is commonly spread on Facebook, like this discussion on a recent outbreak at a Kansas City daycare center.

While the oral polio vaccine is indeed associated with shedding and vaccine associated disease, that doesn’t happen with MMR. Experts don’t even recommend any restrictions for use of the MMR vaccine for household contacts of people who are immunosuppressed. And yes, your kids can even visit a cancer patient if they just had their MMR, as long as they don’t have RSV, the flu, or some other contagious disease.

What about the fact that a study once found measles virus RNA in the urine of of kids who had recently been vaccinated? Doesn’t that mean that they were shedding the vaccine virus?

No. It doesn’t.

To be considered shedding, those measles virus RNA particles in their urine would have to be contagious. Now, measles is spread by respiratory secretions. So how are measles virus RNA particles in urine going to become airborne and get someone else sick?

They don’t.

Another Facebook post about MMR and shedding.
Most measles outbreaks in daycare centers have been started by an unvaccinated child or worker who traveled out of the country.

But what about that case in Canada? Anti-vaccine folks like to bring this up when they talk about shedding. In 2013, there was a case of vaccine-associated measles. That proves that the vaccine sheds, right?

Absolutely not!

“Of note, only one case report of transmission from vaccine-associated measles has been identified.”

Murti et al. on Case of vaccine-associated measles five weeks post-immunisation, British Columbia, Canada, October 2013

That child got measles about 5 weeks after she was vaccinated in the middle of a measles outbreak. Because she had no links to the other cases and she tested positive for vaccine-strain measles, it is thought that she had MMR vaccine-associated measles, which is extremely rare.

Shedding Light on Measles Outbreaks in Daycare

MMR shedding is not causing outbreaks of measles – or rubella and mumps, for that matter.

If shedding from the MMR, by any method, got kids sick, then why aren’t there even more cases of measles?

Daycare centers everywhere have a mix of infants and toddlers, including some who are intentionally unvaccinated, those who are too young to get their first MMR, and those who are just getting vaccinated.

When a case of measles does pop up though, it isn’t because of shedding, it is typically because someone who wasn’t vaccinated traveled out of the country, got measles, and brought it back home, exposing others.

What to Know About MMR and Shedding

Measles outbreaks are not caused by shedding from the MMR vaccine.

More on the MMR and Shedding

Myths About the Yellow Fever Vaccine

Endemic yellow fever was eliminated in the United States in 1905, way before the first yellow fever vaccine was developed (1935) and licensed (1953).

How did that work?

Yellow fever is a now vaccine preventable disease that is spread by mosquito bites.

In the United States, it was actually eliminated by controlling the Aedes aegypti mosquitoes that spread the yellow fever virus before the vaccine was even developed. These control efforts were also done in Cuba, Panama, and Ecuador, etc., places where yellow fever was common and led to outbreaks in the United States.

Why Haven’t We Eradicated Yellow Fever?

So why is yellow fever still a problem if we can control the the Aedes aegypti mosquitoes that carry the yellow fever virus?

“Mosquitoes breed in tropical rainforests, humid, and semi-humid environments, as well as around bodies of still water in and close to human habitations in urban settings. Increased contact between humans and infected mosquitoes, particularly in urban areas where people have not been vaccinated for yellow fever, can create epidemics.”

Yellow fever: Questions and Answers

It’s because we can control the mosquitoes in urban areas, in and around cities. You can’t really control or eliminate mosquitoes in tropical rain forest regions, which is why it is difficult to eradicate yellow fever, malaria, dengue fever, and other mosquito borne diseases.

But we have a vaccine, don’t we?

“Eradication of yellow fever is not feasible since we are unable to control the virus in the natural animal hosts.”

Yellow fever: Questions and Answers

Unfortunately, we aren’t the only ones who can become infected with yellow fever. Monkeys get infected with the yellow fever virus in rain forests, infect Haemagogus and Sabethes mosquitoes, which bite people in those areas.

“Urban transmission of yellow fever virus occurs when the virus is spread from human to human by the Aedes aegypti mosquitoes.”

Yellow fever – Brazil

That likely means that yellow fever will never be completely eradicated, unlike small pox.

Yellow Fever Vaccines Myths

But just because yellow fever can’t be eradicated doesn’t mean that it can’t be eliminated.

A single dose of the yellow fever vaccine is safe and provides life-long protection for 99% of people.

“Vaccination is the most powerful known measure for yellow fever prevention: a single dose can provide life-long immunity at a cost of approximately US$1.”

WHO on Eliminating Yellow Fever Epidemics (EYE) Strategy: Meeting demand for yellow fever vaccines

And as cases of yellow fever increase in some countries, like Brazil, getting more people vaccinated is the only way to stop this deadly disease.

People line up to get a yellow fever vaccine near Kinshasa.
People line up to get a yellow fever vaccine near Kinshasa. Photo by WHO/E. Soteras Jalil

Tragically, anti-vaccination myths and misinformation may be keeping folks from getting vaccinated and protected. Propaganda and anti-vaccine scare videos have them thinking that the yellow fever vaccine is dangerous, part of a conspiracy to depopulate the world, or that it doesn’t work.

It is also important to know that:

  • When traveling to or from some countries, a yellow fever vaccine isn’t enough – you need an International Certificate of Vaccination proving that you were vaccinated.

    You should not skip getting the yellow fever vaccine if you are traveling to an area where yellow fever is endemic, including many parts of areas of Africa and South America.

  • While you are most at risk during the rainy season, especially during outbreaks, it is also possible to get yellow fever during the dry season.
  • Yellow fever is a serious, life-threatening disease.
  • There is no cure for yellow fever.
  • While serious side effects to the yellow fever vaccine have been reported, including anaphylaxis, yellow fever vaccine-associated neurologic disease (YEL-AND), and yellow fever vaccine-associated viscerotropic disease (YEL-AVD), they are very rare.
  • The yellow fever vaccine is a live virus vaccine, but shedding is not an issue. Unless at a high risk of exposure, getting the yellow fever vaccine is usually not recommended if you are pregnant or breastfeeding though.
  • It is not usually necessary to get a booster dose of the yellow fever vaccine.
  • Some countries require proof of yellow fever vaccination if you have traveled from a country where there is still a risk of getting yellow fever, so that you don’t import yellow fever into their country.

As yellow fever cases are on the rise in Brazil, with an associated increase in travel associated cases, it is important that everyone understand that vaccines are safe and necessary.

What to Know About Yellow Fever Vaccine Myths

Yellow fever cases are increasing and so are anti-vaccine myths about the yellow fever vaccine, which are keeping some folks from getting vaccinated and protected, even as they are threatened by a potential outbreak.

More on Yellow Fever Vaccines Myths

Vaccines and the Blood-Brain Barrier

When they aren’t talking about toxins, anti-vaccine folks like to talk about two things – the gut and the blood-brain barrier (BBB).

Kelly Brogan, a holistic psychiatrist, missed an opportunity to talk about the gut when scaring folks about "toxins" in flu shots and the blood brain barrier.
Kelly Brogan, a holistic psychiatrist, missed an opportunity to talk about the gut when scaring folks about “toxins” in flu shots and the blood-brain barrier.

Sometimes they talk about all of them together.

What is the Blood-Brain Barrier?

The blood-brain barrier is exactly what you think it is – a barrier to keep substances in the blood from entering the cerebrospinal fluid that surrounds the brain and spinal cord.

Of course, the blood-brain barrier is not impermeable, as some substances, like glucose, ketone bodies, and amino acids have to get to the brain. Brain cells need fuel, just like every other part of the body. And waste products have to get from the brain, across the blood-brain barrier, and back into the blood, so that we can get rid of them.

So the blood-brain barrier doesn’t block everything though. Instead, it is a semi-permeable membrane that lets some things through, but keeps out foreign substances (neurotoxins), lipid insoluble molecules, large molecules (macromolecules), and molecules with a charge.

Why is all of this important?

With a functioning blood-brain barrier, many medications, hormones, and toxins, are kept from affecting our brains! Of course, the blood-brain barrier can make it hard when you do want something to affect your brain, like when you are treating meningitis, anxiety, depression, or migraines.

And there are times when the blood-brain barrier can break down, like after a stroke, certain infections, head trauma, or having high blood pressure, etc.

Vaccines and the Blood-Brain Barrier

So what do vaccines have to do with the blood-brain barrier?

If you understand how vaccines work, you have already likely expected that the answer is, not much.

Anti-vaccine folks think that vaccine ingredients, their so-called toxins, can cross the blood-brain barrier – our semi-permeable membrane that keeps most things out.

They also think that teething can induce a chemical cascade that can make a child’s blood-brain barrier extra leaky. It doesn’t.

And they think that an infant’s blood-brain barrier isn’t developed, an anti-vaccine talking point which helps reinforce their decision to skip or delay vaccinating their kids.

When Does the Blood-Brain Barrier Form?

It shouldn’t be surprising that none of the things that anti-vaccine folks say about the blood-brain barrier is true.

“In contrast with the rodent, in which the development of the BBB occurs primarily after birth, the human barrier and its tight junction protein complex develop mainly in utero. More recent evidence has confirmed that the proteins of the tight junction complex are present very early during human fetal brain development.”

Fetal and Neonatal Physiology (Fifth Edition)

So, of course, the blood-brain barrier forms before a baby is born.

“Given sufficient time and dosage most drugs can breach the placenta and enter the fetal circulation, posing a teratogenic risk to the fetal brain. Although the placenta and BBB have several efflux transporters in common, the BBB is a far more structurally complex and restrictive system.”

Goasdoué et al on Review: The blood-brain barrier; protecting the developing fetal brain

The placenta does a good job of most things from getting to your baby, but once inside, you don’t want everything in your baby’s blood to get to their brain, right?

That’s why the blood-brain barrier begins to form well before your baby is born.

“The BBB develops during fetal life and is well formed by birth, especially to proteins and macromolecules.”

Abbott et al on the Structure and function of the blood-brain barrier

And it is well formed by the time they are born.

None of the ingredients in vaccines, whether it is aluminum, polysorbate 80, or anything else, is going to cross the blood-brain barrier and act as a toxin.

“One can question why polysorbate-80 is in the vaccines if it serves to potentially transport vaccine materials across the blood-brain-barrier. After all, what vaccine materials need to enter the brain? The obvious answer is, none. I’ve heard people ask if the polysorbate-80 is in the vaccines intentionally, used as part of a medical experiment on the human race, like we heard about during World War II.”

Lawrence Palevsky, MD in the Holistic Child Health Newsletter August 2013

It should be clear that these ideas about the blood-brain barrier are just more myths to scare you away from vaccinating and protecting your kids.

Polysorbate 80, for example, is an emulsifier that helps ingredients mix together. It is also used in ice cream and other foods. Maybe someone can ask Dr. Palevsky if he thinks that’s why we sometimes get a ‘brain freeze’ when we eat ice cream – the polysorbate 80 is allowing the ice cream to cross our blood-brain barrier and literally freeze our brain as some kind of medical experiment on the human race.

What to Know About Vaccines and the Blood Brain Barrier

The blood-brain barrier is a semi-permeable membrane that develops before your baby is born. Review how that should affect your decision to vaccinate your kids.

More on Vaccines and the Blood Brain Barrier

Who Is Dr. Taz?

Dr. Taz is on a mission “to transform the way we do medicine and empower and equip you with the best tools so you can live your healthiest life.”

While that sounds very nice, it doesn’t take too long to figure out that she seems like every other anti-vaccine quack we run across these days.

Who Is Dr. Taz?

Dr. Tasneem Bhatia MD (Dr. Taz) describes herself as a nationally recognized “wellness expert” who became a “pioneer and trailblazer” after overcoming her own personal health problems.

With multiple office locations and membership packages, Dr. Taz is pleased to offer many non-evidenced based services for you and your child, and she will even file your claim forms from your insurance company, although, as expected, she doesn’t actually participate in any insurance plans.

What about vaccines?

“My journey in medicine began with pediatrics, so I am well aware of the importance of vaccines and the incredible history and success of vaccination programs in reducing infant and child mortality.

Yet as my journey continues, I have had to listen to patient after patient describe a change or a shifting in their children once vaccines were administered. I experienced this as a parent. I will never forget the day that my son received a combination vaccine. Within 24 hrs., his mild reflux became severe, his weight gain over the next few months slowed and we continue to play catch up, trying to analyze our next steps. My son, however, is not autistic. He is brilliant, hilarious, and an absolute charmer.

My patients and my own children have forced me to rethink this vaccine controversy.”

Dr. Taz on Back to School Survival Series Part Two, The Vaccine Debate Continues

Of course, there is no vaccine controversy, except the one that folks like Dr. Taz have created. Like many other vaccine-friendly pediatricians, anecdotes became evidence and quickly overcame years of learning.

And shame on Dr. Taz for implying that autistic kids are not brilliant, hilarious and charmers!

That’s the vaccine controversy. Continuing to push the idea that autistic kids are vaccine damaged and not understanding the simple concept that correlation doesn’t imply causation.

“Red flags for parents that may justify an alternative schedule include”

Dr. Taz on Back to School Survival Series Part Two, The Vaccine Debate Continues

While there are true contraindications to getting vaccinated, she doesn’t list any of them, instead pushing anti-vaccine talking points about skipping or delaying vaccines if your child has reflux, colic, or delayed milestones, etc.

But there’s more.

During a visit with Dr. Taz, you can also get your child:

  • a Zyto scan
  • Meridian testing
  • a brain boost evaluation
  • sports optimization testing

And parents can get a detox screen “which will directly correlate with your child’s early ability to detox and process chemicals.”  That’s probably just MTHFR testing, which you don’t need and which doesn’t correlate with much of anything, besides homocystinuria.

Selling supplements is big business for integrative, holistic, and anti-vaccine folks.
Your diagnostic tests and evaluation, whether it is the Zyto scan or detox screen, likely helps them scare convince you into buying more supplements.

Dr. Taz also offers:

  • acupuncture and Chinese medicine
  • aromatherapy
  • Ayurveda (Indian medicine)
  • energy healing
  • essential oils
  • craniosacral therapy (osteopathy)
  • homeopathy
  • IV therapy

Now, I understand that these types of holistic docs push the idea of “pulling from conventional, integrative, holistic, functional and Chinese medicine to create the best customized treatment plans possible,” but if any of these alternative therapies worked, whether it was acupuncture or Ayurveda, or homeopathy, then why do they need to integrate them all?

So what services does Dr. Bhatia offer to bring her patients to “whole health”? It’s a veritable cornucopia of quackery. Homeopathy? Check. Acupuncture? Check. (Obviously.) IV vitamin therapy? Check. Oh, and of course Dr. Bhatia offers thermograms. She even offers mobile thermograms. Never mind that thermography remains an unvalidated test for the early detection of breast cancer, much less for all the other conditions for which Dr. Bhatia recommends it, such as arthritis, fibromyalgia, back injuries, digestive disorders, “and more…”

A commercial for acupuncture masquerading as news

And how does someone go from teaching medical students and residents at Emory University to being one of Gwyneth Paltrow’s Goop experts, along with Kelly Brogan?

Dr. Taz was a pediatrician who said that vaccines were safe and necessary.
It wasn’t so long ago that Dr. Taz was a pediatrician who said that vaccines were safe and necessary.

Or from saying vaccines are safe and necessary and that parents shouldn’t expose their kids at chicken pox parties to a few years later saying that we shouldn’t judge Kristin Cavallari because we need more vaccine research.

What motivates these folks?

What to Know About Dr. Taz Bhatia

Dr. Taz promotes herself as an integrative medicine expert who pushes many unproven treatments and has alternative and dangerous views about vaccines and autistic kids.

More on Dr. Taz Bhatia

Are Vaccinated Children Dying from the Flu?

We know that kids die from the flu, not just this year, but every year.

In fact, on average, just over 100 kids die of the flu each year!

The flu is a terrible disease.

How Many Kids Die from the Flu?

The CDC started to track pediatric flu deaths in the fall of 2004, when it became nationally reportable. This followed a particularly bad 2003-04 flu season (H3N2-predominant), during which the CDC got reports of 153 pediatric deaths from only 40 states.

Since then, the number of pediatric flu deaths has ranged from a low of 37, during the 2011-12 flu season, to a high of 289 deaths during the swine flu pandemic.

  • 2004-05 flu season – 47 pediatric flu deaths
  • 2005-06 flu season – 46 pediatric flu deaths
  • 2006-07 flu season – 77 pediatric flu deaths
  • 2007-08 flu season – 88 pediatric flu deaths (H3N2-predominant)
  • 2008-09 flu season – 137 pediatric flu deaths
  • 2009-10 flu season – 289 pediatric flu deaths (swine flu pandemic)
  • 2010-11 flu season – 123 pediatric flu deaths
  • 2011-12 flu season – 37 pediatric flu deaths
  • 2012-13 flu season – 171 pediatric flu deaths (H3N2-predominant)
  • 2013-14 flu season – 111 pediatric flu deaths
  • 2014-15 flu season – 148 pediatric flu deaths (H3N2-predominant)
  • 2015-16 flu season – 93 pediatric flu deaths
  • 2016-17 flu season – 110 pediatric flu deaths (H3N2-predominant)

So far, this year, there have been 119 flu deaths in children.

Are Vaccinated Children Dying from the Flu?

The anti-vaccine movement is obviously the one in PANIC MODE as they continue putting out anti-vaccine propaganda.
The anti-vaccine movement is obviously the one in PANIC MODE as they continue putting out anti-vaccine propaganda, even as unvaccinated kids continue to die.

Although this year’s flu season, in which an H3N2 flu strain got off to an early start, certainly has the potential to be a lot worse than your average flu season, it seems similar to other H3N2 flu seasons.

Tragically, that means a lot of kids will likely die with the flu this season. H3N2-predominant flu seasons tend to be much worse than when other flu virus strains

And like previous flu seasons, we know that:

  • many of them will be otherwise healthy, without an underlying high risk medical condition
  • half will be between 5 to 17 years old

And most of them will be unvaccinated.

“During past seasons, approximately 80% of flu-associated deaths in children have occurred in children who were not vaccinated. Based on available data, this remains true for the 2017-2018 season, as well.”

CDC on How many flu-associated deaths occur in people who have been vaccinated?

And we also know that it isn’t too late to get a flu shot to get protected for the rest of this year’s flu season.

What to Know About Pediatric Flu Deaths

The flu vaccine isn’t perfect, but there is no denying the fact that year after year, most pediatric flu deaths are in kids who weren’t vaccinated.

More on Pediatric Flu Deaths

Updated March 11, 2018

Can Vaccines Cause Multiple Sclerosis?

Multiple Sclerosis is thought to be an autoimmune disease, with symptoms typically starting when you are between 20 to 40 years old.

“MS symptoms are variable and unpredictable. No two people have exactly the same symptoms, and each person’s symptoms can change or fluctuate over time. One person might experience only one or two of the possible symptoms while another person experiences many more.”

National Multiple Sclerosis Society on MS Symptoms

From fatigue, weakness, and problems walking to vision problems, including the onset of blurred vision, MS can have many different symptoms.

What Causes Multiple Sclerosis?

Some people may be surprised that doctors have known about Multiple Sclerosis since the 1870s. They recognized people with the symptoms of MS even earlier.

Unfortunately, we still don’t know what causes it.

Can Vaccines Cause Multiple Sclerosis?

Without a known cause, it is easy to understand why some folks blame vaccines.

How many infants got hepatitis B in France because of low levels of vaccination after they blamed the vaccine for causing MS?
How many infants got hepatitis B in France because of low levels of vaccination after they blamed the vaccine for causing MS?

We see the same thing with many other conditions.

Remember though, just because you don’t know what causes something doesn’t mean that you can’t eliminate things that don’t cause it.

“Concern about hepatitis B vaccination arose from France in the mid 1990s. Following a mass hepatitis B vaccination program in France there were reports of MS developing in some patients a few weeks after receiving the vaccine. In 1998, the French government stopped the school-based hepatitis B component of the vaccination program while they investigated a possible relationship between hepatitis B vaccine and demyelinating disease. When studies of the French vaccine recipients were completed they showed that there was not a significant increase in the number of vaccinated people who developed MS as compared with those who had never received hepatitis B vaccine.”

Hepatitis B and multiple sclerosis FactSheet

And more than a few studies have shown that vaccines do not cause Multiple Sclerosis.

From the hepatitis B vaccine to the HPV vaccines, it has been shown that vaccines do not cause Multiple Sclerosis.

It has also been shown that vaccines don’t increase the risk of relapses for people who already have MS.

“…vaccines are able to prevent some infections in MS patients known to accelerate the progression of the disease and increase the risk of relapses.”

Mailand et al on Vaccines and multiple sclerosis: a systemic review

And yes, since new infections may trigger MS relapses, vaccines have an added benefit for MS patients.

And that’s why it is recommended that patients with MS follow the standard Centers for Disease Control immunization schedule. They may need to avoid getting live vaccines while taking specific MS medications though, as some of these can suppress their immune system.

“In the last few years a number of MS-focused vaccines have shown promising results in early phase clinical trials, and with each success the technology is closer than ever to offering a viable treatment option.”

Dr. Karen Lee on MS vaccines: Thinking outside the box for new treatments

While everyone hopefully now understands that any talk about MS being associated with vaccines is just another myth or scare tactic of the anti-vaccine movement, vaccines may one day really be associated with MS – therapeutic vaccines are in development that can treat people with Multiple Sclerosis!

What to Know About Vaccines and Multiple Sclerosis

Although it is still not known what does cause Multiple Sclerosis, we do know that it is not vaccines, which may actually reduce the risk of relapses for folks who already have MS.

More on Vaccines and Multiple Sclerosis

Can Vaccines Cause Eczema?

Eczema, or atopic dermatitis, can be hard to control.

That’s one of the things that is so frustrating about it.

It’s also often hard to figure out what exactly is triggering a child’s eczema. Is it the soap you are using, your child’s clothes, or something he eat or drank?

What Causes Kids to Have Eczema?

Another frustrating thing for parents, and pediatricians, is that we really don’t know what usually causes kids to have eczema in the first place.

Was it the soap you are using, your child’s clothes, or something he eat or drank?

“Research suggests that genes are the determining causes of eczema and other atopic diseases. This means that you are more likely to have atopic dermatitis, food allergies, asthma and/or hayfever if your parents or other family members have ever had eczema.”

Mark Boguniewicz, MD on What Causes Eczema

Unfortunately, simply knowing that eczema is genetic doesn’t make it any less frustrating for many people.

“There is emerging evidence that inflammation in atopic dermatitis is associated with immune-mediated and inherited abnormalities in the skin barrier.”

Amy Stanway, MD on Causes of atopic dermatitis

You can avoid likely triggers, including harsh soaps and dry skin, etc., and learn the best ways to care for your baby’s skin though.

Can Vaccines Cause Eczema?

Why do some folks associate vaccines with eczema?

“It is unusual for an infant to be affected with atopic dermatitis before the age of four months but they may suffer from infantile seborrhoeic dermatitis or other rashes prior to this.”

Amy Stanway, MD on Atopic Dermatitis

It’s easy to understand when you realize that 60% of kids with eczema have their first symptoms before their first birthday and for some, the first symptoms start around the time an infant is just over four months old.

Many baby rashes, especially if they started before 4 months, are probably not eczema.
Many baby rashes, especially if they started before 4 months, are probably not eczema. (CC BY-SA 2.0)

Did your baby have bad skin before four months?

Many do, but they usually don’t have eczema. In the first week or two, newborn rashes like infantile seborrheic dermatitis and neonatal acne continue to worsen, until they reach a peak at about age six weeks. It isn’t until about three or four months that baby’s begin to have good skin. Unless they start to develop eczema…

So, since the eczema symptoms start after a child’s four or six months shots, then it must be the vaccines, right?

While the correlation is obvious, that obviously doesn’t prove that vaccines cause eczema.

“Vaccinations do NOT cause eczema.”

Amy Paller, MD on Do vaccines cause eczema?

And, not surprisingly, several studies (listed below) prove that they don’t.

A large study of vaccinated vs unvaccinated children, Vaccination Status and Health in Children and Adolescents Findings of the German Health Interview and Examination Survey for Children and Adolescents (KiGGS), also found that “the prevalence of allergic diseases and non-specific infections in children and adolescents was not found to depend on vaccination status.”

Can Vaccine Ingredients Trigger Eczema?

Now that we know that vaccines don’t actually cause eczema, what about the idea that vaccines can make a child’s eczema worse?

That’s actually true, but only for the smallpox vaccine.

If someone with eczema gets vaccinated with vaccinia, the smallpox vaccine, or is recently exposed to someone who was vaccinated, they could develop eczema vaccinatum. Fortunately, since smallpox was eradicated, very few people get the smallpox vaccine anymore.

And back before smallpox was eradicated, they actually developed an attenuated version of the smallpox vaccine that could safely be used in kids with eczema!

Other vaccines are not thought to trigger or worsen eczema.

“Parents of atopic children should be encouraged to fully immunize their children.”

Grüber et al on Early atopic disease and early childhood immunization–is there a link?

While many kids with eczema do have food allergies and some vaccines do contain some residual food proteins, including eggs and milk, it is very rare for them to trigger food allergy reactions.

If this has you concerned, remember that even kids with egg allergies can now get the flu shot, and while many kids with eczema have food allergies, the food allergy isn’t usually thought to make their eczema worse. As part of the atopic march, they just have both – food allergies and eczema. Some also have hayfever or asthma.

In addition to your pediatrician, a pediatric allergist can help you with any remaining concerns about eczema and vaccines. A pediatric dermatologist can also be helpful if you are having a hard time getting your child’s eczema under control.

What to Know About Vaccines and Eczema

Vaccines don’t cause eczema and except for the smallpox vaccine, they won’t make your child’s eczema worse. Experts recommend that kids with eczema be fully vaccinated.

More on Vaccines and Eczema