Thanks to the anti-vaccine movement, it isn’t hard to find
autistic kids who aren’t vaccinated.
Where Are the Autistic Kids Who Aren’t Vaccinated?
For one thing, folks in the anti-vaccine movement do a good job
scaring parents, which means that there are simply more unvaccinated kids around.
vaccines aren’t associated with autism, these unvaccinated kids can and do develop autism.
How do we know?
Parents in anti-vaccine groups and forums often ask…
And invariably, the answer they get is that yes, many of them either have or know of
autistic kids who are unvaccinated.
Hopefully that will eventually lead them all to understand that
vaccines are not associated with autism, so that they don’t continue to leave their kids unvaccinated and at risk to get a vaccine-preventable disease. More on Autistic Kids Who Are Unvaccinated
Is this really a question?
The assertion, by
Rita Palma, that the unvaccinated don’t spread disease any more than the vaccinated is simply absurd. Do Unvaccinated Kids Spread More Disease?
Before we get to the studies, let’s just think about this for a second.
If you are vaccinated and aren’t getting sick, then how would you
And if vaccinated folks spread so much disease, then how do we control and
eliminate diseases when vaccination rates are high?
So yes, the consensus thinking would be, of course the unvaccinated spread disease more than the vaccinated!
And not surprisingly, the science confirms that idea:
It is clearly the
unvaccinated who are at greater risk to get vaccine-preventable diseases.
And it is clearly the
unvaccinated who start and keep most outbreaks going.
And when they spread disease, it is often to those who are
most at risk, including those who are too young to be vaccinated or fully vaccinated, and those with true medical exemptions, including cancer and immune system problems.
What else is clear?
Misinformation about vaccines is what likely scares parents away from vaccinating and protecting their kids. Don’t listen to these folks anymore.
safe, with few risks, and are obviously necessary. More on Unvaccinated Kids Do Spread More Disease
Anti-vaccine folks continue to call for
vaccinated vs unvaccinated studies.
A vaccinated vs unvaccinated study that anti-vaccine folks don’t talk about…
Not surprisingly, they ignore all of the studies that have already been done.
More Vaccinated vs Unvaccinated Studies
Listening to these
anti-vaccine folks, you would actually think that the only vaccinated vs unvaccinated “study” that has ever been done is the survey about homeschoolers that they always talk about…
That leaves out a lot of other vaccinated vs unvaccinated studies, including:
Vaccination Status and Health in Children and Adolescents. Findings of the German Health Interview and Examination Survey for Children and Adolescents (KiGGS) – unvaccinated kids just got more vaccinated preventable diseases Vaccinated versus unvaccinated children: how they fare in first five years of life – again, unvaccinated kids just got more vaccine-preventable diseases No effect of MMR withdrawal on the incidence of autism: a total population study – the cumulative incidence of autism up to age seven increased significantly in the birth cohorts of years 1988 through 1996 and most notably rose dramatically beginning with the birth cohort of 1993, even though they had stopped using the MMR vaccine in early 1993. A population-based study of measles, mumps, and rubella vaccination and autism – looked at the relative risk of autistic disorder in a group of vaccinated children, as compared with an unvaccinated group, and found no association with the MMR vaccine. Early-life determinants of asthma from birth to age 20 years: a German birth cohort study – asthma incidence was lower in participants who were vaccinated Lack of broad functional differences in immunity in fully vaccinated vs. unvaccinated children – more evidence that vaccines don’t overwhelm a child’s immune system – innate and adaptive immune responses were not reduced, delayed, or altered in vaccinated vs unvaccinated kids Reduced Severity of Pertussis in Persons With Age-Appropriate Pertussis Vaccination-United States, 2010-2012 – kids who got pertussis had less severe disease than those who were unvaccinated Parental refusal of pertussis vaccination is associated with an increased risk of pertussis infection in children – unvaccinated kids got more pertussis Protective effect of vaccination against mumps complications, Czech Republic, 2007-2012 – vaccinated kids had fewer mumps complications than those who were unvaccinated Influenza vaccination is associated with reduced severity of community-acquired pneumonia – folks who got a flu vaccine had less severe course of community acquired pneumonia and improved survival than those who didn’t Cumulative risk of Guillain-Barré syndrome among vaccinated and unvaccinated populations during the 2009 H1N1 influenza pandemic – vaccinated people had less GBS Effect of human papillomavirus vaccination on cervical cancer screening in Alberta – vaccinated women were more likely to have cervical cancer screening and less likely to have high-grade cervical abnormalities Rates and determinants of seasonal influenza vaccination in pregnancy and association with neonatal outcomes – vaccinated women had lower rates of pre-term birth and low birth weight infants Rotavirus Vaccination and the Risk of Celiac Disease or Type 1 Diabetes in Finnish Children at Early Life – did unvaccinated kids get more Celiac disease or diabetes? No, no they didn’t. Does Measles Vaccination Reduce the Risk of Acute Respiratory Infection (ARI) and Diarrhea in Children: A Multi-Country Study? – getting a measles vaccine was associated with decrease in acute respiratory infections and diarrhea in vaccinated children Quadrivalent HPV vaccination and risk of multiple sclerosis and other demyelinating diseases of the central nervous system – HPV vaccination was not associated with the development of multiple sclerosis or other demyelinating diseases in vaccinated vs unvaccinated study participants Examining a possible association between human papilloma virus (HPV) vaccination and migraine: results of a cohort study in the Netherlands – Incidence rate ratios (IRRs) for vaccinated compared to unvaccinated girls were not statistically significantly higher. No evidence found for an increased risk of long-term fatigue following human papillomavirus vaccination of adolescent girls – No statistically significant increased incidence rates were found post-vaccination compared to similar age groups of girls pre-vaccination. Pertussis Immunisation in Pregnancy Safety (PIPS) Study: A retrospective cohort study of safety outcomes in pregnant women vaccinated with Tdap vaccine – compared to unvaccinated pregnant women, Tdap in pregnancy did not increase preterm labour, pre-eclampsia, or gestational diabetes mellitus and actually had a protective effect on pre-eclampsia with severe features, preterm labour, preterm delivery, and antenatal bleeding! Risk of chronic arthropathy among women after rubella vaccination. Vaccine Safety Datalink Team. – found no evidence of any increased risk of new onset chronic arthropathies or neurologic conditions in women receiving the RA 27/3 rubella vaccine vs unvaccinated women Is childhood vaccination associated with asthma? A meta-analysis of observational studies. – only looked at studies that directly compared vaccinated and unvaccinated children… The influence of measles vaccination on the incidence of otosclerosis in Germany. – found that the incidence of hospital treatments for otosclerosis decreased to a significantly greater extent in the vaccinated patients than in the unvaccinated patients. Measles-mumps-rubella and other measles-containing vaccines do not increase the risk for inflammatory bowel disease: a case-control study from the Vaccine Safety Datalink project – the MMR vaccine did not increase the risk for IBD, Crohn’s disease, or ulcerative colitis relative to unvaccinated children MMR vaccine and Crohn’s disease: ecological study of hospital admissions in England, 1991 to 2002 – like several other studies, found no increase in Crohn’s disease associated with the introduction of the MMR vaccination programme
Do we need even more studies on vaccinated vs unvaccinated children?
We already know that unvaccinated kids get sick more and they have
more severe disease. Who is going to approve of or want to do a study that only puts kids at risk to get a vaccine-preventable disease?
safe, with few risks, and they are obviously necessary. More on Vaccinated vs Unvaccinated Studies
There is another
benefit of vaccines that you might not be aware of.
Vaccines are typically very
effective, but of course, they aren’t perfect.
Fortunately, even when they don’t work and you do get sick, vaccinated kids will often have milder disease than those who are
unvaccinated. Do Vaccinated Kids Who Get Sick Have Milder Disease?
While no one expects to get a
vaccine-preventable disease if they have been vaccinated, it is nice to know that often, you will at least have a milder disease.
“Disease may occur in previously vaccinated individuals. Such breakthroughs are either primary – due to vaccine failure – or secondary. In such cases, the disease is usually milder than in the non-vaccinated.”
Vaccination greatly reduces disease, disability, death and inequity worldwide
Milder mumps and pertussis?
“The number of previous vaccine doses was inversely associated with clinical severity.”
Zamir et al on Characteristics of a large mumps outbreak: Clinical severity, complications and association with vaccination status of mumps outbreak cases
And that’s good news for all of the folks concerned about
waning immunity with these vaccines.
“A protective effect of vaccination was noted when mean duration of symptoms and hospital stay are analysed, comparing unvaccinated, partially vaccinated and fully vaccinated children. We showed a vaccination dose effect trend, with fully vaccinated children having less-severe RVGE than not vaccinated and partially vaccinated children.”
Justino et al on Clinical Severity and Rotavirus Vaccination among Children Hospitalized for Acute Gastroenteritis in Belém, Northern Brazil
Consider that, in addition to preventing disease:
two doses of MMR has been found to have a significant preventive effect against mumps complications, including orchitis, meningitis, and encephalitis, and hospitalization for mumps two doses of the chickenpox vaccine has been found to be very effective at preventing severe disease, in fact, kids with breakthrough chickenpox often don’t have fever, have fewer than 50 spots, and they go away quicker than kids who are unvaccinated. vaccinated kids who get pertussis typically don’t cough as long as those who are unvaccinated the rotavirus vaccine series, in addition to protecting most kids from getting rotavirus infections in the first place, protected all of the vaccinated kids from getting severe infections the flu vaccine reduces the risk of severe disease, especially if you are hospitalized with the flu
What does this all mean?
Two kids with smallpox – one vaccinated and one unvaccinated. Can you guess which is which? The vaccinated child on the right only has one or two spots…
It means that
vaccines work, even when they don’t work as well as we would like them to! More On the Severity of Breakthrough Infections
What Are the Benefits of Vaccines? Are the Risks Greater Than the Benefits for Any Vaccines? The Benefits and Risks of Delaying Vaccines Effectiveness Rates of Vaccines What Are the Pro and Con Arguments for Vaccines? Study – Protective effect of vaccination against mumps complications, Czech Republic, 2007-2012 Study – Shift within age-groups of mumps incidence, hospitalizations and severe complications in a highly vaccinated population. Spain, 1998-2014 Study – Severity of mumps disease is related to MMR vaccination status and viral shedding Study – Characteristics of a large mumps outbreak: Clinical severity, complications and association with vaccination status of mumps outbreak cases Study – Severe varicella in persons vaccinated with varicella vaccine (breakthrough varicella): a systematic literature review Study – Varicella breakthrough infection and effectiveness of 2-dose varicella vaccine in China Study – Effectiveness of Prenatal Tetanus, Diphtheria, and Acellular Pertussis Vaccination on Pertussis Severity in Infants Study – Safety and efficacy of an attenuated vaccine against severe rotavirus gastroenteritis Study – Clinical Severity and Rotavirus Vaccination among Children Hospitalized for Acute Gastroenteritis in Belém, Northern Brazil Study – Influenza vaccination is associated with reduced severity of community-acquired pneumonia Study – Influenza vaccine effectiveness in preventing influenza-associated intensive care admissions and attenuating severe disease among adults in New Zealand 2012-2015 CDC – New CDC Study Shows Flu Vaccine Reduces Severe Outcomes in Hospitalized Patients WHO – Vaccination greatly reduces disease, disability, death and inequity worldwide Another Benefit of Vaccines: Milder Disease Fatality Rates Of Small-Pox In The Vaccinated And Unvaccinated Vaccine adverse events are rare – vast benefits outweigh small risks The benefits of the measles vaccine go beyond just protecting against measles, 2019 edition