Tag: meningitis

Can the Chickenpox Vaccine Cause Meningitis?

Why do some folks think that the chickenpox vaccine can cause meningitis?

Because they are misrepresenting a case report about two vaccinated teens who later developed shingles and meningitis, with a vaccine strain of chickenpox.

Can the Chickenpox Vaccine Cause Meningitis?

While that does sound like the chickenpox vaccine caused them to have meningitis, since it was a vaccine strain, it is very important to keep in mind that a natural chickenpox infection can do the exact same thing.

“Like wild-type virus, vOka can establish latency in sensory ganglia after immunization and may reactivate, leading to HZ.”

Harrington et al on Vaccine Oka Varicella Meningitis in Two Adolescents

Anyway, as can happen after a natural chickenpox infection, these two vaccinated teens developed shingles (HZ or herpes zoster).

“vOka varicella rarely results in meningitis, which is thought to occur after reactivation in a proximal dorsal root ganglion with spread to the central nervous system.”

Harrington et al on Vaccine Oka Varicella Meningitis in Two Adolescents

Unfortunately, whether the reactivation occurs after getting the chickenpox vaccine or a natural chickenpox infection, it can cause meningitis, as it did with these two teens.

So why get vaccinated?

In addition to avoiding chickenpox and its complications, getting vaccinated and protected with the chickenpox vaccine lowers your risk of later developing shingles.

“Viral meningitis accounts for approximately 26,000 to 42,000 hospitalizations each year in the United States, affecting mainly infants younger than one year, children 5–10 years of age, and the immunocompromised. Varicella Zoster virus is responsible for about 11% of those cases. Varicella can infrequently lead to Encephalitis resulting in seizures and coma (estimated 1.8 per 10,000). Other rare but serious complications of VZV include transverse myelitis, guillain-barré syndrome, thrombocytopenia, hemorrhagic varicella, purpura fulminans, glomerulonephritis, myocarditis, arthritis, and hepatitis.”

Gnoni et al on Varicella Zoster aseptic meningitis: Report of an atypical case in an immunocompetent patient treated with oral valacyclovir

And if you don’t get shingles, you shouldn’t get meningitis!

“To the best of our knowledge, these are the first cases of vOka meningitis described in adolescent patients who received 2 doses of varicella vaccine.”

Harrington et al on Vaccine Oka Varicella Meningitis in Two Adolescents

Although these teens were vaccinated, there are even more case reports of unvaccinated children and adults developing chickenpox (varicella zoster) meningitis and shingles (herpes zoster) meningitis.

That’s one of the reasons that these are life-threatening diseases that most of us try to avoid by getting vaccinated and protected!

As much as anti-vax folks are sharing this case report, it isn’t a good reason to skip or delay your child’s chickenpox vaccines. In fact, not getting vaccinated will almost certainly raise your child’s risk of developing chickenpox meningitis, from the natural strain.

More On Meningitis After the Chickenpox Vaccine

How Can They Make a Vaccine for a Bacteria?

Why do some folks think that you can’t make a vaccine for a bacteria?

How can they make a vaccine for a bacteria?
You have done everything you can to keep her healthy by not vaccinating but sometimes things still happen, like your baby gets a vaccine-preventable disease???

Probably because they spend too much time in anti-vax Facebook groups…

How Can They Make a Vaccine for a Bacteria?

Hopefully most people do know that there are plenty of vaccines for bacteria, from tetanus to tuberculosis and typhoid fever.

Essential oils do not help kids with meningitis.
Essential oils do not help kids with meningitis.

And that several of those vaccines can help prevent children, including infants, from getting meningitis.

Vaccines that prevent bacterial meningitis include:

  • Hib – the Haemophilus influenzae type b bacteria was a common cause of meningitis in the pre-vaccine era
  • Prevnar – the Streptococcus pneumoniae bacteria can cause meningitis
  • Menactra and Menveo – protect against serogroup A, C, W, Y meningococcal bacteria
  • Bexsero and Trumenba – protect against serogroup B meningococcal bacteria

Want to protect your kids from meningitis and help to keep them healthy?

Get them vaccinated.

More on Vaccines for Bacteria

When You Ask for Vaccine Advice in an Anti-Vaccine Facebook Group…

Can you guess what happens when you ask for advice about vaccines in an anti-vaccine Facebook Group?

Meningitis is not a side effect of vaccines.

What could go wrong?

When You Ask for Vaccine Advice in an Anti-Vaccine Facebook Group…

While most of us are used to hearing about meningococcal meningitis being a big risk for teens and young adults, it is important to realize that rates of disease are also high for infants, with a second peak during adolescence.

The highest rates of meningococcal disease occurs during infancy and adolescence.

So why don’t we routinely vaccinate infants against meningococcal disease?

Many countries do, including Australia and the UK, and in the United States, high risk infants are vaccinated against meningococcal disease.

If you were on the fence but were advised by your paediatrician (Australian spelling) to get vaccinated and protected because a child in your town had just died, would you get vaccinated?

Or would you listen to folks in an anti-vaccine Facebook group who tried to convince you that meningitis was actually a side effect of getting vaccinated?

Folks who insist that deaths from vaccine-preventable disease aren’t real and that instead, they are actually vaccine-injuries?

We know what happens when you ask for vaccine advice in an anti-vaccine Facebook group. The members push their propaganda to scare you away from vaccinating and protecting your kids.

Don’t listen to them. Vaccines are safe and necessary.

More on When You Ask for Vaccine Advice in an Anti-Vaccine Facebook Group…

Is the Meningococcal Vaccine More Dangerous Than Meningococcal Disease?

No one who has ever seen a child with meningococcal disease would ever think that it was even remotely possible that getting a meningococcal vaccine was more dangerous than getting the disease.

“The case-fatality ratio of meningococcal disease is 10% to 15%, even with appropriate antibiotic therapy. The case-fatality ratio of meningococcemia is up to 40%. As many as 20% of survivors have permanent sequelae, such as hearing loss, neurologic damage, or loss of a limb.”

Epidemiology of Vaccine Preventable Diseases (PinkBook)

Of course, that doesn’t stop anti-vaccine folks from spreading misinformation about these vaccines to try and scare parents away from vaccinating and protecting their kids.

Is the Meningococcal Vaccine More Dangerous Than Meningococcal Disease?

We actually vaccinate against meningitis with many different vaccines, including Hib, Prevnar, MMR, and the meningococcal vaccines.

And there are different types of meningococcal vaccines, including those that protect against Neisseria meningitidis serogroups A, C, W, Y and Men B.

Meningococcal vaccines are safe and effective against meningococcemia and meningococcal meningitis, both terrible diseases.
Meningococcal vaccines are safe and effective against meningococcemia and meningococcal meningitis, both terrible diseases.

So routine vaccinations likely prevent up to 500 meningitis deaths each year, just in the United States, including many deaths from Hib meningitis, pneumococcal meningitis, and meningococcal disease.

“During 2005-2011, an estimated 800-1,200 cases of meningococcal disease occurred annually in the United States, representing an incidence of 0.3 cases per 100,000 population.”

Epidemiology of Vaccine Preventable Diseases (PinkBook)

What about the idea that 1 in 100 people will have a serious reaction to the vaccine?

“The most frequently reported adverse events for MenACWY-D include fever (16.8%), headache (16.0%) injection site erythema (14.6%), and dizziness (13.4%). Syncope was reported in 10.0% of reports involving MenACWY-D. Of all reported MenACWY-D events, 6.6% were coded as serious (i.e., resulted in death, life-threatening illness, hospitalization, prolongation of hospitalization, or permanent disability). Serious events included headache, fever, vomiting, and nausea. A total of 24 deaths (0.3%) were reported.”

Epidemiology of Vaccine Preventable Diseases (PinkBook)

The serious events listed above were from the clinical trials for the vaccine and didn’t differ between the vaccine and placebo.

Although meningococcal vaccines can have frequent mild side effects, they very rarely have serious side effects.

Not everything that happens during a clinical trial is related to the vaccine, even though it still gets reported. Another Menactra trial reported no deaths and the serious adverse events that were reported weren’t related to getting vaccinated.

Here is another meningococcal study in which a few of the participants died – one in a car accident and the other a drug overdose.

These deaths were not related to getting vaccinated, but were listed because they occurred during the study.
These deaths were not related to getting vaccinated, but were listed because they occurred during the study.

Unfortunately, vaccines can’t protect you from everything…

It would be especially nice if they could protect us from bad anti-vaccine memes.

More on Meningococcal Vaccine Safety