Childhood Vaccines Are in the News

Separating Fact From Misinformation

Childhood vaccines have been the subject of significant national attention following recent changes announced by the White House (8/10/26). Along with discussions about the childhood vaccine schedule, several statements were made that may understandably leave parents confused or concerned.

At Mid City Pediatrics, our role is not to tell families what to think politically. Our role is to provide parents with accurate medical information so they can make informed decisions about their children’s health.

Parents should absolutely ask questions about vaccines. Recommendations should be continually reviewed as new evidence becomes available. But those conversations should begin with accurate information about what vaccines contain, how they are given, and what decades of research have shown.

Here are some of the claims you may have heard this week and what the medical evidence and facts actually tell us.

CLAIM: The amount of vaccine given to a child can be comparable to a “bottle of soda.”

During remarks about childhood vaccination, President Trump compared the amount of vaccine fluid given to a small child to the “size of a bottle of soda.”

That comparison may sound frightening—especially to a parent picturing that amount of fluid being injected into a baby.

So let’s look at the actual volume.

Most routine injectable childhood vaccines contain approximately 0.5 mL of fluid per injection.

Using combination vaccines such as Pediarix during infancy and Kinrix at age 4, and looking at an example of commonly administered routine childhood vaccines using combination products when available, a child might receive approximately:

• Birth: 1 injection — Hepatitis B
• 2 months: 3 injections
• 4 months: 3 injections
• 6 months: 2 injections
• 12 months: 3 injections
• 15 months: 3 injections
• Around age 2: 1 injection
• Age 4: 3 injections — including combination DTaP/IPV (Kinrix), MMR and varicella
• Around age 11: 2 injections
• Age 16: 1 injection

That’s approximately 22 injections from birth through age 18 in this particular example. The last routinely scheduled injection included in this example occurs at age 16, so the total remains 22 through age 18.

At approximately 0.5 mL per injection, the combined volume of those 22 injections is only:

11 mL of vaccine fluid spread over 18 years.

For comparison:

One standard 12-ounce bottle of soda = approximately 355 mL.

A single 12-ounce soda therefore contains more than 32 times the amount of fluid contained in all 22 of those vaccine injections combined.

But even that comparison gives the wrong impression in one important way: those 11 mL are never given to a child at the same time.

At one of the larger infant vaccine visits, when a baby receives three typical 0.5-mL injections, the total amount injected at that visit is approximately: 1.5 mL.

A 12-ounce bottle of soda contains approximately 237 times that amount of fluid.

But what if we include annual flu vaccines and HPV?

Let’s make the comparison even more complete.

The American Academy of Pediatrics recommends annual (yearly) influenza vaccination beginning at 6 months of age and continuing through adolescence. The AAP also recommends routine HPV vaccination during childhood and adolescence.

If we include:

• roughly 18–20 injectable influenza vaccine doses through age 18, depending on how influenza seasons and the first-season two-dose recommendation fall, and
• the recommended two-dose HPV series,

that adds approximately 20–22 additional injections to our example. At approximately 0.5 mL per injection, that represents another 10–11 mL of vaccine fluid.

Add that to the approximately 11 mL from the 22 injections in our childhood vaccine example above, and the combined total becomes approximately:

21–22 mL of injectable vaccine fluid from birth through age 18.

Now compare that with a standard 12-ounce bottle of soda:

Combined volume of the vaccine injections included in this expanded example: approximately 21–22 mL

One standard 12-ounce bottle of soda: approximately 355 mL

A single bottle of soda therefore contains roughly 16–17 times more fluid than the combined volume of all the vaccine injections included in this expanded example, spread across an entire childhood and adolescence.

Vaccine fluid does not accumulate in a child’s body

There is another important problem with adding 18 years of vaccine volumes together: biologically, that isn’t what happens inside the body.

Vaccine doses do not accumulate year after year.

After an injectable vaccine is administered, immune cells encounter the vaccine antigens and begin an immune response. Specialized antigen-presenting cells process the antigens and communicate with other parts of the immune system, including B and T cells. This helps the body develop antibodies and immune-memory cells capable of recognizing the infection in the future.

The vaccine ingredients themselves do not simply remain in the muscle or bloodstream indefinitely.

Depending on the particular vaccine and ingredient, components are processed, broken down, metabolized or eliminated through the body’s normal physiologic processes. Live attenuated vaccines, such as MMR, work somewhat differently because the weakened viruses briefly replicate before being controlled by the immune system.

There isn’t a growing reservoir of vaccine fluid inside a child, with another 0.5 mL being permanently added every time another vaccine is administered.

What we want to remain is the immune memory—not the vaccine fluid.

When we say that the injectable vaccines included in this example total roughly 21–22 mL, we are deliberately adding together nearly two decades of separate vaccinations simply for comparison.

At no point does a child have those 21–22 mL of vaccine sitting inside his or her body.

So let’s put the numbers side by side:

Three typical vaccine injections at an infant visit: ~1.5 mL

All injectable vaccines included in our expanded example added together from birth through age 18: ~21–22 mL

One 12-ounce bottle of soda: ~355 mL

The 21–22 mL represents vaccinations administered over approximately 18 years. The 355 mL represents one bottle of soda.

So the image of anything remotely resembling a “bottle of soda” worth of vaccine being injected into a small child does not reflect either the actual volumes involved or what happens to vaccines after they enter the body.

This comparison is simply a matter of putting the actual vaccine volumes into perspective.

This example is intended to illustrate injectable vaccine volume. Exact vaccine products, doses and timing can vary depending on age, medical history, combination products used and evolving recommendations. Vaccines administered orally, such as rotavirus, are not included in the injectable-volume calculation.

CLAIM: Children receive 70–90 “jabs.”

During the White House event, numbers ranging from 70–90—and even as high as 94 “jabs”—were used to describe childhood vaccination.

But what exactly counts as a “jab”?

If by “jab” we mean what most parents would reasonably think it means an actual needle stick into their child, those numbers do not accurately describe the routine childhood vaccine schedule in our example.

Refer back to the vaccine schedule above.

Using common combination vaccines such as Pediarix and Kinrix, the routine vaccine series in our example involves approximately 22 actual injections from birth through age 18.

If we add the routinely recommended two-dose HPV series, that brings the total to approximately 24 injections through age 18.

What about the flu vaccine?

Influenza vaccination is recommended every year beginning at 6 months of age. Depending on exactly when a child’s birthday and influenza seasons fall, and whether the child needs two doses during the first influenza season, an injectable flu vaccine every year would add roughly 18–20 additional needle sticks by age 18.

So even if a child receives the routine vaccines in our example, the full HPV series, and an injectable flu vaccine every year, the total in this example would be approximately:

42–44 actual needle sticks over 18 years.

That averages only about 2 to 2½ needle sticks per year of life.

In other words, counting actual needle sticks produces a very different number from the 70–94 “jabs” described in recent remarks, which I can only assume the inflated numbers are coming from.

The exact number for an individual child can vary depending on vaccine products used, timing of influenza seasons, whether an intranasal flu vaccine is used when age-appropriate, medical conditions, catch-up vaccination and changing recommendations. But counting the number of actual injections is very different from counting every disease or vaccine component as another “jab.”

For example:

Pediarix protects against diphtheria, tetanus, pertussis, hepatitis B and polio with one needle stick—not five.

Kinrix protects against diphtheria, tetanus, pertussis and polio with one needle stick—not four.

MMR protects against measles, mumps and rubella with one needle stick—not three.

That’s one of the major benefits of combination vaccines: they reduce the number of injections children receive.

And that makes proposals to separate MMR particularly important to understand.

If measles, mumps and rubella were separated into individual vaccines, one MMR injection would become three separate needle sticks.

So if the concern is that children receive too many “jabs,” separating combination vaccines would actually increase the number of injections.

When discussing childhood vaccine schedules, parents deserve to know whether a number represents actual needles going into their child or the number of diseases being prevented by those injections.

Those are not the same thing.

CLAIM: Giving several vaccines at the same visit overwhelms a child’s immune system.

Parents sometimes understandably wonder whether several vaccines at once are simply “too much” for a baby’s immune system.

It’s a reasonable question—and one that has been studied extensively.

Children encounter an enormous number of antigens through normal daily life—from food, bacteria, viruses, their environment and even the organisms naturally living on their bodies.

Studies have not demonstrated that receiving routinely recommended vaccines at the same visit overwhelms or weakens a healthy child’s immune system.

In fact, although children receive protection against more diseases today than they did decades ago, advances in vaccine technology mean that today’s vaccines expose children to far fewer total antigens than older vaccine schedules did.

Giving multiple vaccines at the same visit has been studied and shown to be safe.

Spacing vaccines over many additional visits also has consequences. It can leave children susceptible to preventable diseases for longer periods and increases the possibility that doses will be delayed or missed altogether.

There can certainly be individual circumstances in which a pediatrician adjusts the timing of a child’s vaccines. That is different from concluding that routinely separating vaccines is medically safer.

CLAIM: MMR may be dangerous or even “lethal” because measles, mumps and rubella are given together.

President Trump suggested that giving measles, mumps and rubella vaccines together could potentially be “quite lethal” and advocated giving the three vaccines separately.

There is no published scientific evidence showing that separating MMR into three individual vaccines is safer than giving the combined MMR vaccine.

Like any vaccine or medication, MMR is not completely without risk. Serious adverse reactions can occur, but they are rare. Reports of serious events, including deaths occurring after vaccination, have been submitted to vaccine-safety surveillance systems; a report occurring after vaccination does not by itself establish that the vaccine caused the event.

The relevant question is whether evidence shows that the combined MMR vaccine creates a greater risk than giving its components separately—and available evidence has not demonstrated that it does.

It is also important to put the history of this vaccine into perspective.

The combined measles, mumps and rubella vaccine was first licensed in the United States in 1971.

That means we have approximately 55 years of experience with combined MMR vaccination in the United States.

This is not a new vaccine or a new combination whose effects are just beginning to be understood. MMR has been administered to generations of children, and its safety has been studied and monitored for decades.

There is also an important practical problem with the proposal to separate MMR:

Separate measles, mumps and rubella vaccines are not currently available in the United States.

Repeat…A vaccine containing separate measles, mumps, and rubella components is not currently available.

Merck stopped production of its individual measles vaccine (Attenuvax), mumps vaccine (Mumpsvax), and rubella vaccine (Meruvax II) in 2008. In 2009, the company formally announced that it would not resume production of these monovalent vaccines.

In other words, separate measles, mumps and rubella vaccines have not been available for routine use in the United States for approximately 17 years.

Today, measles, mumps and rubella vaccination in the United States is accomplished with combination products.

That means that although the President’s executive order may take effect immediately as a federal directive, the portion calling for children to receive separate measles, mumps and rubella vaccines cannot actually be implemented immediately in a pediatrician’s office. The individual vaccines required to do it are not currently available in the United States.

As of August 2026, there is also no publicly announced timeline for when separate measles, mumps and rubella vaccines will become available in the United States, and no manufacturer has publicly announced that it is currently producing these three separate vaccines for the U.S. market.

There is another practical point worth considering.

Separating MMR would mean turning one injection into three separate injections each time protection against measles, mumps and rubella is given.

So at the same time families are being told that children receive too many “jabs,” one of the proposed solutions would actually increase the number of needle sticks children receive.

Parents deserve to understand both of these facts:

There is no published evidence that separating MMR into three vaccines is safer.

And there are currently no separate measles, mumps and rubella vaccines available in the United States with which pediatricians could carry out that recommendation.

CLAIM: Childhood vaccines haven’t really been studied.

One statement made during the White House event suggested that when it comes to childhood vaccination, “nobody has studied it.”

That is simply incorrect.

Vaccines undergo clinical trials before FDA approval and continue to be monitored after approval through multiple vaccine-safety surveillance systems.

Scientists don’t simply stop studying a vaccine once it reaches the market.

Safety monitoring continues in very large populations, which allows researchers to identify uncommon adverse events that might not be apparent in smaller pre-approval trials.

Some vaccine questions have been studied in extraordinarily large populations.

The possible relationship between vaccines and autism, for example, has been examined repeatedly across millions of children in multiple countries.

Medicine should always continue asking questions and studying safety. Continued research is part of good medicine.

But saying childhood vaccines have not been studied does not accurately represent the scientific literature.

CLAIM: Vaccines may be responsible for the increase in autism.

This is understandably one of the most emotionally difficult questions for families.

Autism diagnoses have increased substantially over the past several decades. Researchers continue studying why.

But an increase in two things during the same period does not demonstrate that one caused the other.

Researchers have specifically examined whether MMR vaccination is associated with autism and whether broader vaccine exposure increases autism risk.

Large studies involving millions of children have not demonstrated that MMR vaccination causes autism.

Changes in diagnostic criteria, increased awareness and screening, recognition of milder presentations and other factors have contributed to changes in measured autism prevalence. Research into the causes of autism continues.

Parents of children with autism deserve serious scientific investigation into its causes—not assumptions of causation based simply on two trends occurring during the same period.

CLAIM: Some groups that don’t vaccinate have virtually no autism.

Claims comparing autism rates among supposedly “unvaccinated” populations are often circulated online.

These comparisons are much more complicated than they sound.

To establish that vaccines cause autism, researchers would need reliable information about vaccination status, consistent methods of diagnosing autism, comparable access to healthcare and screening, and careful adjustment for many other differences between populations.

That’s why large epidemiologic studies are much more informative than anecdotes about particular communities.

Those studies have not demonstrated that MMR vaccination causes autism.

What About Separating Vaccines Into More Visits?

Parents may reasonably ask:

“Even if vaccines are safe together, what’s wrong with just spreading them out?”

It sounds simple, but there are practical as well as medical consequences to consider.

Babies already see their pediatrician frequently

During the first year of life, a child following a typical pediatric well-child schedule may already be seen for:

• an initial newborn visit
• a 2-week visit
• a 2-month visit
• a 4-month visit
• a 6-month visit
• a 9-month visit
• a 12-month visit

That’s approximately seven routine well-child visits during the first year alone.

After the first birthday, additional routine well visits commonly occur at 15 months, 18 months and 24 months, with some children or practices also having a visit around 21 months.

And these are only preventive well-child visits.

They don’t include visits for fever, ear infections, respiratory illnesses, injuries, rashes, developmental concerns or the many other reasons young children may need to see their pediatrician.

“Just separate the vaccines” may mean additional appointments

If vaccines that can safely be administered together are instead required to be given at separate medical visits, families may need to make additional trips to the pediatrician.

Consider MMR.

MMR currently provides protection against three diseases—measles, mumps and rubella—with one injection.

If measles, mumps and rubella vaccines eventually become available separately and the three components are also required to be administered at different visits, one current MMR visit could become three vaccine visits—two additional appointments. Because MMR is currently a two-dose series, the two visits needed for the combined vaccine could potentially become six separate visits under such an approach.

That has real consequences for families.

Additional vaccine appointments can mean:

• more time away from work for parents
• more time away from school or childcare for children
• additional transportation and travel
• potentially additional copays or other out-of-pocket expenses, depending on insurance coverage
• additional scheduling difficulties
• more appointments for families who may already have limited access to healthcare

For a family with several children, those additional appointments can multiply quickly.

More visits can also mean more opportunities for vaccines to be missed

There is another important medical consideration.

Every additional appointment creates another opportunity for something to interfere.

A parent can’t get off work.

A child is sick that day.

Transportation falls through.

The appointment is forgotten.

The family moves.

Insurance changes.

Or the family simply doesn’t return.

When vaccines that can safely be administered during the same visit are intentionally separated, children may remain partially vaccinated for longer periods of time.

That matters because delaying a vaccine doesn’t simply change a date on a calendar.

It extends the period during which a child remains susceptible to that disease.

Recommended vaccine schedules aren’t designed simply for convenience. Timing considers when children are vulnerable to particular infections, when vaccines produce an effective immune response, and how early effective protection can safely be established.

There can certainly be individual circumstances in which a pediatrician and family decide to adjust the timing of a child’s vaccines. That’s different from concluding that routinely separating vaccines for every child is medically safer.

There is currently no evidence that routinely spreading compatible childhood vaccines across additional visits makes vaccination safer.

What it clearly can do is create more appointments, more needle sticks when combination vaccines are separated, more inconvenience and potential expense for families, and more opportunities for children to remain incompletely vaccinated.

Asking Questions Is a Good Thing

Parents should never feel uncomfortable asking us:

Why does my child need this vaccine?

What are the risks?

What are the benefits?

What side effects should I expect?

What happens if we delay it?

What evidence supports the recommendation?

Those are reasonable questions.

Vaccine recommendations should not be immune from scrutiny simply because they have existed for a long time. Science continually evaluates recommendations as new information becomes available.

At the same time, questioning recommendations shouldn’t mean abandoning decades of evidence or replacing measurable facts with frightening comparisons that aren’t medically accurate.

Our Commitment to Families

Federal vaccine recommendations are changing, and there may be additional changes in the coming months.

We will continue carefully reviewing those recommendations along with guidance from pediatric and infectious-disease experts and the scientific evidence supporting them.

There may be areas where reasonable people—and even medical organizations—disagree about vaccine policy.

But there is an important distinction between debating vaccine policy and misstating basic medical facts.

A 0.5-mL vaccine is not a bottle of soda.

Counting each disease prevented by a combination vaccine as another “jab” does not represent the number of injections a child actually receives.

There is no published evidence that splitting MMR into three separate vaccines makes it safer.

Childhood vaccines have not gone unstudied.

And vaccine fluid does not accumulate inside a child’s body year after year.

Parents deserve accurate information—including information about both benefits and risks—so they can make informed decisions for their children.

If something you hear in the news or see on social media concerns you, bring it to us.

Ask us! We want our patients to have the correct information.

We would much rather have that conversation with you than have you make an important decision about your child’s health based on fear or misinformation.

Great Care for Great Kids

For the Current Childhood Vaccine Schedule

For the recommended current childhood vaccine schedule, visit the American Academy of Pediatrics immunization schedule.

References & Resources

1. American Academy of Pediatrics. Recommended Childhood and Adolescent Immunization Schedule: United States, 2026. Pediatrics. 2026;157(3):e2025075754.
   Current AAP recommendations for routine childhood and adolescent immunizations, including MMR, influenza, HPV and other routinely recommended vaccines.
2. American Academy of Pediatrics. Immunizations.
   Current AAP immunization recommendations, schedules and resources for pediatricians and families.
3. Centers for Disease Control and Prevention. Measles, Mumps, Rubella (MMR) Vaccine Safety.
   Reviews MMR safety, known adverse effects, the evidence regarding MMR and autism, and the lack of evidence supporting separation of MMR into three individual vaccines. The CDC also notes that M-M-R II was approved in the United States in 1971.
4. U.S. Food and Drug Administration. M-M-R II (Measles, Mumps, and Rubella Virus Vaccine Live) Prescribing Information.
   Provides official prescribing information for M-M-R II, including dosage, administration, contraindications, precautions and reported adverse reactions. A standard M-M-R II dose is approximately 0.5 mL.
5. Hviid A, Hansen JV, Frisch M, Melbye M. Measles, Mumps, Rubella Vaccination and Autism: A Nationwide Cohort Study. Annals of Internal Medicine. 2019;170(8):513–520. doi:10.7326/M18-2101.
   Nationwide Danish cohort study involving 657,461 children. MMR vaccination was not associated with an increased risk of autism. The study also found no evidence that MMR triggered autism in susceptible children or was associated with clustering of autism cases following vaccination.
6. Taylor LE, Swerdfeger AL, Eslick GD. Vaccines are not associated with autism: An evidence-based meta-analysis of case-control and cohort studies. Vaccine. 2014;32(29):3623–3629. doi:10.1016/j.vaccine.2014.04.085.
   Meta-analysis including five cohort studies involving 1,256,407 children and five case-control studies involving 9,920 children. The analysis found no association between vaccination and autism or autism spectrum disorder and no association between MMR vaccination and autism.
7. Centers for Disease Control and Prevention. Measles Symptoms and Complications.
   Reviews the potential complications of measles. Approximately 1 in 5 unvaccinated people in the United States who develop measles are hospitalized, about 1 in 1,000 children with measles develops encephalitis, and approximately 1–3 of every 1,000 children infected with measles die from respiratory or neurologic complications.
8. Centers for Disease Control and Prevention. About the Vaccine Adverse Event Reporting System (VAERS).
   Explains how vaccine adverse events are reported and investigated. VAERS accepts reports of medical events occurring after vaccination, including serious events and deaths, regardless of whether the vaccine is believed to have caused the event. A VAERS report by itself does not establish that a vaccine caused the reported event.
9. American Academy of Pediatrics. AAP Immunization Schedule. Red Book Online.
   Provides access to the AAP Recommended Child and Adolescent Immunization Schedule and supporting immunization guidance.
10. American Academy of Pediatrics. AAP’s 2026 Immunization Schedule Keeps Routine Recommendations Intact. AAP News. January 26, 2026.
    Summarizes the AAP’s 2026 recommendations, including continued routine childhood vaccination and the AAP recommendation for a two-dose HPV series beginning at ages 9–12 years.