Vaccine deniers are basically clueless about science. They invent stuff about the immune system, while missing how a vaccine induces a long-lasting immune response. They conflate correlation with causality, an important distinction if you’re going to understand epidemiology. They deny the germ theory of disease, one of the fundamental pillars of modern biology, which states that many diseases are caused by microorganisms. They simply ignore what makes science a logical and repeatable process, called the scientific method, preferring anecdote and cherry-picked data over randomized clinical trials and peer-reviewed systematic reviews.

But one of the more important scientific failures of the antivaccine gang is an unsophisticated lack of understanding of basic mathematics, specifically the measurement of risk. Using 2010 USA numbers only, let’s look at the top mortality risks for children aged 1-14:

Unintentional injury (motor vehicle accidents, bathroom falls, etc.): 53.75 (out of every 100,000 Americans between the ages of 1-14)

Malignant neoplasms: 22.33

Congenital anomalies (commonly called birth defects): 14.25

Homicides: 11.43

Firearms (number broken out from the numbers for all homicides): 3.68

Heart disease: 6.09

Suicide: 4.85

Chronic respiratory disease: 3.26

Influenza and influenza-related pneumonia: 2.87

Benign neoplasms: 2.50

Meningitis: 0.58

Meningococcal infection: 0.25

The average risk for “serious” complications from vaccines range from 0.1 to 1 in 100,000, with the risk of death from vaccines found to be so small, it can be barely measured as a risk. By the way, those of you who think that VAERS (Vaccine Adverse Event Reporting System) should be used to estimate risk, the best I could say is that VAERS is pretty much useless, since it cannot establish causality, it is gamed by those with an antivaccine agenda, and the rate of adverse events is frequently below the background rate for these events in a typical populations of Americans. VAERS is an incredibly useful tool to spot potential new adverse events that might arise from vaccination, but the numbers themselves cannot be used to determine risk.

The risk of a serious reaction, like an allergic one, from getting the flu vaccine is less than 0.1 in 100,000, far far less than the actual death rate from influenza at around 2.87 per 100,000. Moreover, meningitis (and meningococcal infection) have risks of death far higher than the risks of vaccines.

The saddest thing about these numbers is that I’m spending so much time defending vaccines, which are as safe as drinking a glass of filtered water and clearly save lives from preventable diseases. The antivaccine activists, who claim to be worried about children, don’t focus on the things that actually kill children. Motor vehicle accidents, some portion of which are probably a result of drunk drivers. Or firearm homicides? Where is the outrage, that young children are dying from gunshots? Or that the risk of a child dying of suicide is thousands of times higher than the infinitely tiny risk of death from vaccines (if it even exists)?

Why is it that these vaccine deniers show incredible outrage over an indefensible belief that vaccines are dangerous, yet not try to stop homicides, especially with guns? Or safer cars? Or something that actually will help kids live longer.?

Actual guns kill more actual kids than the antivaccine myth that vaccines harm actual children. You see, vaccine deniers don’t actually care about children, or they would be yelling and screaming about guns. And drunk drivers. And the lack of mental health care for teenagers.

If you need to search for accurate information and evidence about vaccines try the Science-based Vaccine Search Engine.

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