I have arrived; I’ve got my own iPhone App. For those who have been living under a rock, “iPhone App” is short for iPhone application, tiny applications that can be accessed only through an iPhone, and purchased through the iTunes Store.

The “Am I Pregnant Quiz” was developed in response to the requests of the millions of readers of my primary website, Ask Dr. Amy. It provides women with an immediate and personalized answer to the question “Am I Pregnant?” based on the responses to 10 questions about menstrual cycle and symptoms. It’s not a substitute for a pregnancy test, of course, but it provides guidance for women are wondering about their chances of pregnancy this month.

Each month over 50,000 women ask themselves “Am I Pregnant?” Hopefully, the “Am I Pregnant Quiz” iPhone app can help them find out the answer.

Others have pointed out the tendency of mainstream websites like the Huffington Post to present “alternative” medicine quackery as medical news. (See, for example, Orac’s Fire Marshal Bill discusses vaccines and autism on The Huffington Post, and Steve Novella’s, The Huffington Post’s War on Science.) Even articles that are purportedly written by “doctors” are pseudoscientific nonsense. (See “Dr.” Patricia Fitzgerald’s Jenny McCarthy’s Autism Crusade: Healing, Hope… And Controversy). So how are lay people supposed to distinguish quackery from scientific medicine?

Rory Coker, professor of physics and University of Texas Austin, has written a very informative article for the website Quackwatch. The article, Distinguishing Science from Pseudoscience, was not written with “alternative” health in mind, but accurately captures the essence of “alternative” medicine. Using these principles, the average person can distinguish quackery from scientific medicine.

You know it’s quackery because:

1. “Pseudoscience displays an indifference to facts.

Instead of bothering to consult reference works or investigating directly, its advocates simply spout bogus “facts” where needed. These fictions are often central to the pseudoscientist’s argument and conclusions. Moreover, pseudoscientists rarely revise. The first edition of a pseudoscience book is almost always the last, even though the book remains in print for decades or even centuries…”

Homebirth advocates, both professional and amateur, routinely make up “facts” to suit themselves. For example, homebirth advocates routinely claim that the US does poorly on measures of obstetric care (false), that Cytotec was used “experimentally” for labor induction (false) or that homebirth is “as safe as life gets” (only if life is filled with easily preventable infant deaths).

Cory points out that pseudoscientists rarely revise their books even though new scientific studies are constantly published. Williams Obstetrics has been through 3 editions (20th, 21st and 22nd) since Henci Goer published “The Thinking Woman’s Guide to a Better Birth” which represents itself as an analysis of the scientific evidence, yet she has not revised it.

2. “Pseudoscience begins with a hypothesis … and then looks only for items which appear to support it.

Conflicting evidence is ignored… [T]he aim of pseudoscience is to rationalize strongly held beliefs, rather than to investigate or to test alternative possibilities. Pseudoscience specializes in jumping to “congenial conclusions,” grinding ideological axes, appealing to preconceived ideas and to widespread misunderstandings.”

“Alternative” health doesn’t merely appeal to widespread misunderstandings, it actively seeks to create widespread misunderstanding.

3. “Pseudoscience relies heavily on subjective validation.

Joe Blow puts jello on his head and his headache goes away. To pseudoscience, this means jello cures headaches… This phenomenon, called subjective validation, is one of the foundations of popular support for pseudoscience…”

Jenny McCarthy believes that her son had autism. She provided him with “therapy.” He seems better. Jenny McCarthy believes that the therapy “cured” his autism.

4. “Pseudoscience always avoids putting its claims to a meaningful test.

Pseudoscientists never carry out careful, methodical experiments themselves … Pseudoscientists also never follow up. If one pseudoscientist claims to have done an experiment … no other pseudoscientist ever tries to duplicate it or to check him,.. Further, where a pseudoscientist claims to have done an experiment with a remarkable result, he himself never repeats it to check his results and procedures…”

A corollary to this is also often found in vaccine rejectionism, the claim that the vaccine quack “hasn’t had time” to publish the results.

“Alternative” medicine advocates are also very careful never to appear in any venue where they could be questioned by scientific peers, yet they speak extensively at gatherings of laypeople.

5. “Pseudoscience often contradicts itself, even in its own terms.

Such logical contradictions are simply ignored or rationalized away…”

Childbirth is painless. Childbirth is very painful, but the pain can be managed with the right attitude. Not only is childbirth not painful, it is actually pleasurable. Homebirth advocates can’t make up their minds which one of these claims is preferable.

6. “Pseudoscience deliberately creates mystery where none exists, by omitting crucial information and important details.

Anything can be made “mysterious” by omitting what is known about it or presenting completely imaginary details…”

Vaccine rejectionism relies very heavily on misrepresenting what vaccine rejectionists don’t know as “unknown”. Homebirth advocates prefer to claim that there is no scientific evidence for obstetrics practices when copious evidence exists and is easily accessible to anyone who bothers to look.

7. “Pseudoscience does not progress.

… within a given topic, no progress is made… New theories are seldom proposed, and old concepts are rarely modified or discarded in light of new “discoveries,” since pseudoscience rarely makes new “discoveries.” … No natural phenomena or processes previously unknown to science have ever been discovered by pseudoscientists…”

“Alternative” medicine never changes. It always amounts to nothing more than rejection of conventional practice.

8. “Pseudoscience appeals to false authority, to emotion, sentiment, or distrust of established fact.

A high-school dropout is accepted as an expert on archaeology … A psychoanalyst is accepted as an expert on all of human history, not to mention physics, astronomy, and mythology, even though his claims are inconsistent with everything known in all four fields…”

Henci Goer and Ina May Gaskin have no training in their supposed areas of “expertise”. Marsden Wagner is a pediatrician and Michel Odent is a general surgeon, yet they are touted as experts on birth even though obstetricians disagree with them.

Actors Jenny McCarthy and Jim Carrey are “experts” on autism.

9. “Pseudoscience appeals to the truth-criteria of scientific methodology while simultaneously denying their validity.

Thus, a procedurally invalid experiment which seems to show that astrology works is advanced as “proof” that astrology is correct, while thousands of procedurally sound experiments that show it does not work are ignored…”

Vaccine rejectionists cite poorly done or discredited research as proof of their claims, while routinely ignoring thousands of medical studies that thoroughly debunk their claims.

HuffPo presents Patricia Fitzgerald, its Wellness Editor, as “Dr.” when her “doctorate” is in homeopathic medicine.

10. “Pseudoscientists often appeal to the ancient human habit of magical thinking.

Magic, sorcery, witchcraft—these are based on spurious similarity, false analogy, false cause-and-effect connections, etc. That is, inexplicable influences and connections between things are assumed from the beginning—not found by investigation.”

For example, birth “affirmations” can purportedly influence whether a baby will be breech or will fit.

11. “Pseudoscience relies heavily on anachronistic thinking.

The older the idea, the more attractive it is to pseudoscience—it’s the wisdom of the ancients!—especially if the idea is transparently wrong and has long been discarded by science…”

“Alternative” health practitioners love to claim that Chinese medicine or herbs are effective because they are ancient. Meanwhile, the Chinese die in droves of conditions that are easily treatable by real medicine, and herbs are less effective (or ineffective) compared to medication.

The Huffington Post has learned that presenting quackery as scientific medicine draws readers and perhaps that is why they promote quackery in their pages. Or perhaps Arianna Huffington is a devotee of “alternative” health quackery. Either way, Huffington Post is promoting pseudoscience as if it were science. The average person can use the above principles to tell the difference.

I yield to no one in my passionate commitment to the well being of children, but this incident leaves me distinctly uncomfortable. Prosecutors in North Dakota have filed charges of felony child neglect against Stacey Anvarinia. Was she abusing her 6 week old baby? No. Had she neglected to care for the baby? No. It was because she was breastfeeding the baby. The police officers and prosecutors decided, in their wisdom, that since Ms. Anvarinia appeared to be intoxicated, her breast milk posed imminent threat to the health of her baby.

Since when is breastfeeding while drunk a crime? Is it even a danger to the baby’s health? There is certainly a theoretical risk that a baby can be harmed by breastfeeding from a chronically intoxicated mother. Ethanol (alcohol) passes from the mother’s blood stream into her breast milk. However, it is diluted, and the baby receives only a tiny fraction of what the mother consumed. There is no scientific evidence that breastfeeding during a single episode of intoxication is harmful to the baby in any way.

The police officers made no attempt to prove that Ms. Anvarinia was actually drunk. She just “seemed” intoxicated to them. To my knowledge, they did not obtain evidence of the amount of ethanol, if any, in the baby’s bloodstream. So North Dakota has leveled a felony charge against Ms. Anvarinia without evidence that the “crime” in question was even committed. More disturbing, though, is that they made up the “crime”” to suit the circumstances, and likely influenced by the pervasive American hysteria over what children eat.

Let’’s be clear. They didn’t charge Ms. Anvarinia because she was drunk in her own home. They didn’t charge her because they thought that she was too drunk to care for her infant. They charged her because she was breastfeeding. Had she been bottlefeeding the baby, they would have ignored her drunkenness, though arguably the baby faced health risks from a drunken mother mixing formula. Mixing formula powder with water in the wrong proportions can be harmful to a baby.

Ms. Anvarinia was charged with felony child neglect solely because she was breastfeeding. Since there is no scientific evidence that breastfeeding while intoxicated is harmful to an infant, the officers and prosecutors simply made up the “crime.” In that, I suspect, they were influenced by the current American hysteria over what children eat. Not a day passes when Americans aren’t bombarded with messages about the “dangers” of childhood obesity, the “dangers” of sugar, the “dangers” of salt, etc.

Moreover, Americans seem chronically unable to understand the concept of risk. They routinely obsess about trivial or even non-existent risks, and they wrongly ascribe far more risk to “dangers” they perceive as uncontrollable (alcohol inadvertently given to a baby through breastmilk) than those over which they think they have control (rolling over and suffocating a baby sleeping in the same bed). Couple that with lack of familiarity with breastfeeding, and suddenly it is a “crime” to breastfeed while intoxicated.

This incident is deeply troubling for another reason. It is an attempt to criminalize mothering if it does not meet entirely arbitrary standards. Will they be charging mothers who smoke with felony child neglect, since second hand smoke poses a real, not theoretical, risk to an infant’s health? Will they be monitoring the dietary intake of women who breastfeed to make sure that the breast milk contains nutrients in the recommended amounts and doesn’t contain any non-approved prescription or over the counter medications?

The case against Ms. Anvarinia will almost certainly be dismissed because prosecutors lack the evidence needed to try her for endangering her child. They have no evidence that she was drunk or that any alcohol was transmitted to the child. Nonetheless, the mere fact that she was accused is deeply troubling. She was not charged because she was drunk, and she was not charged because she posed a threat to her child simply by being drunk. She was charged because she was mothering (breastfeeding) while drunk, a moral “deficiency” that the officers and prosecutors decided merited the designation of “crime.”

Babies are born in hospital delivery rooms all day, every day and no one thinks twice about it. Give birth to a baby anywhere else in the hospital, even the emergency room, and pandemonium occurs. Staff members appear from all parts of the hospital … to watch. You’d think these doctors and nurses had never seen a birth before, they are so excited, calling encouragement and cheering. Of course it can be a bit embarrassing to notice, after the baby is born, that you have attracted a crowd of complete strangers who have become fixated on your fully exposed nether regions.

Such was the case of the mother who gave birth to her 5th child at the elevator bank on the labor floor. I was a medical student at the time, and we could hear the screaming as the elevator rose from the first floor and the doors opened. The orderly and the nurse managed to get the stretcher out of the elevator, but it was too late to go farther. The nurse delivered the baby on the threshold of the labor ward. Within moments a crowd that seemed to include a substantial portion of the hospital staff had gathered to watch.

The baby was healthy and vigorous, encouraging a festive atmosphere. Various staff members were admiring him and celebrating the opportunity to see a baby being born. At first we didn’t notice the mother’s distress.

“I’m so embarrassed,” she wept. She gestured to her legs splayed open and the pile of bloody sheets between them. “Everyone is looking at me.”

Actually, everyone was looking at the baby, but we understood her point. The crowd of observers began to break up and drift away, chatting happily about what they had just witnessed.

The nurse tried to comfort the mother.

“Don’t cry, honey,” she soothed. “You shouldn’t be embarrassed. This is nothing. Last year a woman gave birth to a baby on the hospital’s front lawn.”

Unexpectedly, this produced a further flood of tears.

The nurse was surprised, “What’s wrong, dear?”

It took a minute for the mother to calm down enough to tell us.

“That was me last time!”

The current popularity of “alternative” health is a sad testament to the pervasive appeal of pseudoscience among Americans. As a general matter, “alternative” health is the belief that simple measures (nutritional supplements, herbs, laying on of hands) are effective in preventing and treating serious illness. “Alternative” health promotes the happy fantasy that we have more control over our health than we actually do.

Like most claims of pseudoscience, “alternative” health rests on the twin pillars of lack of knowledge and magical thinking. Lack of knowledge is easy to explain. If you don’t have a fund of basic scientific knowledge, if you don’t understand the scientific method, and if you don’t understand statistics, which is the language of science, you are not going to have a real understanding of health. Most “alternative” health advocates are woefully undereducated about human physiology, have little basic knowledge of science and no knowledge of statistics.

“Alternative” health advocacy depends in large part on a few celebrity “scholars” who filter and interpret all information about health, scientific papers and statistical analysis. The average consumer of supplements and alternative treatments has not read a single medical textbook, a single book of statistics or a single scientific paper. Interestingly, they don’t even think it is necessary. Indeed, the average consumer who claims to have done “research” into alternative health has only “researched” the opinions of other advocates.

If lack of knowledge were the only problem, it would be easy to solve. A little more education would go a long way. Learning the truth about “alternative” health, the fact that virtually none of it has been tested for efficacy or safety, should put a serious dent in the sale of supplements, herbs, and “alternative” remedies. However, the belief in “alternative” health reflects the appeal of pseudoscience itself.

Barry Beyerstein, a professor of psychology at Simon Fraser University, wrote extensively on this topic. His paper, Distinguishing Science from Pseudoscience, is one of the best expositions of the issue that I have read. As Beyerstein explains:

The prestige and influence of science in this century is so great that very few fields outside of religion and the arts wish to be seen as overtly unscientific. As a result, many endeavors that lack the essential characteristics of a science have begun to masquerade as one in order to enhance their economic, social and political status. While these pseudosciences are at pains to resemble genuine sciences on the surface, closer examination of the contents, methods and attitudes reveals them to be mere parodies. The roots of most pseudosciences are traceable to ancient magical beliefs, but their devotees tyically play this down as they adopt the outward appearance of scientific rigor. Analysis of the perspectives and practices of these scientific poseurs is likely to expose a mystical worldview that has merely been restated in scientific-sounding jargon.

How does it work in practice?

Pseudoscientists use a number of rhetorical ploys to advance their cause. These sales gambits are well-known to social psychologists who specialize in persuasion techniques…

Bogus science prospers in the marketplace by selling false hope … Wild claims … are likely to surface wherever proven techniques offer no quick and easy route to a highly desirable end.

Most claims of “alternative” medicine fit into this category. Nutritional claims are paradigmatic. Wouldn’t it be nice if preventing, treating and curing serious illness involved nothing more arduous or uncomfortable than changing what you eat. Sound to good to be true? That’s because it is.

According to Carl Sagan:

Pseudoscience is easier to contrive than science because distracting confrontations with reality … are more readily avoided. The standards of argument, what passes for evidence, are much more relaxed. In part for these same reasons, it is much easier to present pseudoscience to the general public than science. But this isn’t enough to explain its popularity…

Pseudoscience speaks to powerful emotional needs that science often leaves unfulfilled. It caters to fantasies about personal powers we lack and long for… In some of its manifestations, it offers satisfaction of spiritual hungers, cures for disease, promises that death is not the end. It reassures us of our cosmic centrality and importance. It vouchsafes that we are hooked up with, tied to, the Universe…

At the heart of some pseudoscience … is the idea that wishing makes it so. How satisfying it would be, as in folklore and children’s stories, to fulfill our heart’s desire just by wishing. How seductive this notion is, especially when compared with the hard work and good luck usually required to achieve our hopes…

“Alternative” health, like all pseudoscience, depends on a lack of basic knowledge of science and a desperate wish that difficult problems can be solved with simple solutions. Lack of knowledge, superstition and desperation have created a financial bonanza for purveyors and advocates of “alternative” health.

Kidney donations occur every day, but most do not come out through the vagina. The case of a 48 year old woman whose donated kidney was retrieved through her vagina has made headlines, and rightly so. This is the future: natural orifice surgery.

So says NOSCAR (Natural Orifice Surgery Consortium for Assessment and Research) a collaborative of specialist surgeons. Conveniently, the acronym conveys the principle benefit of the surgery, no scar. In reality, there is a scar, but it is located internally. A kidney or appendix can be removed through the vagina. A gallbladder can be removed through the stomach and pulled out the esophagus. And that’s just the beginning. This represents a real paradigm shift in surgery.

Back in the Dark Ages, when I went to medical school, having surgery meant a substantial surgical incision. The kidney was removed through a large incision in the flank; the gallbladder came out through a large incision curving from the right upper abdomen toward the back; even the appendix, small as it is, required a 3-4 inch incision in the right lower abdomen. Since the skin incision is the most painful part of surgery, most surgical procedures required days or weeks of recovery, and substantial amounts of pain medication in the immediate post operative period.

All that changed with the introduction of the laparoscope, whose use was pioneered by gynecologists. The laparoscope was originally nothing more than a long tube with an eye piece and a light source. The laparoscope could be introduced into the abdominal cavity through a one inch incision located immediately below the navel. It provides a nearly complete view of the abdomen and pelvis. With the addition of a manipulating rod, introduced through a half inch incision in the lower abdomen, various types of simple surgery could be performed.

The laparoscope was a tremendous boon to gynecology patients. Many different gynecological problems present with similar symptoms. Sometimes symptoms made one diagnosis far more likely than the others, but all too often, the wrong treatment was implemented initially, or actual surgery was required to look into the pelvis and see what was going on. In the case of pelvic infection, the surgery turned out to be unnecessary in retrospect.

The laparoscope changed all that. Now if there was any doubt, the patient could have laparoscopy. The doctor could look into the pelvis directly to make the correct diagnosis and the woman was left with a tiny incision small enough to be covered by a bandaid. And they could do far more than look. With the advent of special instruments, a ruptured tubal pregnancy or an appendix could be removed. Fallopian tubes could be easily, and ovarian cysts, or an entire ovary could be removed using the scope. And in every case, the patient had far less pain and a very quick recovery. Patients went home the very same day as their surgery, with only one or more bandaids providing evidence that any surgery had occurred.

Gynecologists encouraged surgeons to embrace the technology. Now gallbladders and kidneys are routinely removed using the laparoscope. One thing did not change, however. Laparoscopy continued to require little incisions in the abdomen through which the scope and the instruments were inserted. And in the case where something large like a kidney was removed, a separate, larger incision was required to pull the organ out. That increased the pain and the recovery time.

Natural orifice surgery is a logical extension of laparoscopy. In natural orifice surgery, the laparoscope or the instruments are introduced through a tiny incision in a natural orifice. So, for example, in a “no scar” appendectomy, the scope is still inserted below the navel, but the instruments go in and the appendix comes out through an incision in the upper vagina. Now instead of 2 or 3 small abdominal scars, an appendectomy leaves one small abdominal scar, and one larger, unseen scar in the upper vagina.

An even greater benefit is that removal of organs like the kidney, that used to require a 2-3 inch incision to get the kidney out of the body, can be done with a similar incision in the upper vagina. A vaginal incision results in far less pain. The woman who donated her kidney declared that the donation was far easier than having a baby, and far less painful than when she had had her gallbladder removed through a traditional incision.

As natural orifice surgery is becoming more popular, surgeons are becoming more creative. How about removing the gall bladder through a small incision in the stomach? What about abdominal surgery done through a small incision in the rectum? Some surgeons are even exploring the possibility of urinary tract surgery done through a small incision in the bladder.

To be sure, there are technical difficulties that must be overcome. For example, in the case of the donated kidney, dragging it through the bacteria filled vagina before placing it in another person raises the risk of serious infection. Yet technical problems often lead to ingenious solutions. In the case of kidney donation, the first step is to enclose the kidney in a sterile plastic bag tied at the top. When the kidney is released from its attachments, it is removed through the vagina by simply pulling out the sterile bag, kidney enclosed.

Natural orifice surgery is not for everyone. Anyone who has internal adhesions (scarring) from previous surgery is often not a candidate for any kind of laparoscopic surgery. Natural orifice surgery is not appropriate for cancer surgery where it is critical to explore every corner of the abdomen and pelvis to make sure there is no cancer left behind.

“No scar” surgery represents a natural evolution in surgery. The operations have stayed the same, but the incisions have been shrinking and are now being placed in hidden areas. Pain and recovery time are dramatically reduced. It is still preferable to avoid surgery all together, but when that is not possible, natural orifice surgery can dramatically improve the experience.

Obstetrics, the saying goes, is 95% boredom punctuated by 5% terror. Most of the time childbirth is routine and the doctor shows up to catch the baby and make sure it doesn’t fall on the floor. Every now and then, though, someone tries to die; usually it’s the baby, but occasionally it can be the mother or both. Common obstetric emergencies include hemorrhage, fetal distress, and pregnancy induced high blood pressure (pre-eclampsia).

Only once in my career was there a weapons emergency.

That’s not because of a lack of weapons brought to labor and delivery. Hospitals don’t have metal detectors, so visitors (and probably patients, too) are free to conceal knives and guns in their clothing. Every now and then I would glimpse the handle of a father’s gun exposed at the top of a pocket, but no father ever drew a weapon in the hospital or threatened the staff. The same cannot be said of the visitors.

The key lesson to be drawn from the one weapons emergency is that the father should not bring his new girlfriend to the birth of his child by his old girlfriend. The participants in this particular drama were the teenage mother in labor, her sister who was her labor coach, the teenage father, and the father’s new girlfriend.

As near as the nurse could tell, the dispute started when the participants were speculating on what the new baby might look like. The dad was hoping the baby would look like him. The sister expressed her hunch that the baby would look like mom, and the new girlfriend weighed in with her opinion. She hoped that the baby would not look like mom, since “the bitch looks like a pig.”

As anyone knows, them’s fighting words. The sister pulled out the knife she kept in her pocket for just such events, and wrestled the new girlfriend to the ground where she attempted to stab her to death. The nurse stat paged … the chief resident. He arrived in a flurry, looking around for the medical emergency. The woman in the bed looked fine. The baby looked fine on the fetal monitor. He directed his gaze lower and took in the scene of the two women locked in mortal combat on the floor, and fled.

The nurse followed him out the door and he rounded on her. “Why did you page me?” he cried. “I’m a doctor, not a policeman. I’m not getting in between those two. Page security.”

Security was paged and duly arrived: two middle age men moving as fast as they could, breathing heavily and jangling keys. Somehow they managed to pry the women apart. I still don’t understand how no one was hurt in the melee. Although the sister was the one who pulled the knife, she was the labor coach, and it was agreed that she could stay if she handed over the knife, which she did reluctantly. The new girlfriend was banned from the room and left in a huff.

The baby was born 8 hours later. I don’t know whom she looked like.

There are several factors involved in vaccine rejectionism. Vaccine rejectionists lack even the most basic knowledge about science, immunology, and statistics. They don’t have even rudimentary tools with which to analyze the claims of charlatans. Just like the flat earthers, they are persuaded by what “seems” reasonable to them in their limited experience.

Another important cause of vaccine rejectionism is the inability of Americans to understand risk. In particular, Americans have great difficulty understanding health risks. We routinely panic about insignificant health risks (high tension wires, X-rays) and routinely ignore large health risks (driving without a seatbelt, tanning). This explains, in part, the fear bordering on panic generated by theoretical vaccine “risks”, and the fashion for “alternative” treatments.

David Ropeik, Director of Risk Communication at the Harvard Center for Risk Analysis, discusses the causes of misperception of risk in his article The Consequences of Fear. He mentions three main factors, control, choice and origin, that are especially relevant for understanding the misperception of risk among Americans.

Take the issue of choice, for example. It is widely accepted among scholars of risk analysis that risks over which we feel as though we exercise control are perceived to be smaller than risks that are imposed from outside. In other words, people not only tolerate the substantial risk of not wearing a seatbelt, but they perceive the risk to be relatively small, when, in fact, it is relatively large compared to risks that evoke more fear, like the risk of a plane crash or a terrorist attack.

many Americans sought a sense of control and safety after 9/11 by driving instead of flying. Air arrivals in Las Vegas were down 6.5% and motor vehicle arrivals were up 7.3% at the end of April 2002, compared with the same period in 2001, according to the Las Vegas Convention and Visitors Authority. Consider the public health ramifications of such a choice. Driving is far more likely to result in injury or death. A study by Michael Sivak and Michael Flannagan of the Human Factors Division at the University of Michigan Transportation Research Institute found that roughly 1,000 more Americans died in road accidents during October–December 2001 than would have been expected based on a comparison between figures from January–August 2000 and January–August 2001.

This leads vaccine rejectionists to take risks with their children’s lives by “choosing” to refuse vaccination. They labor under the misperception that making a “choice” to reject vaccination is safer than subjecting their children to the impersonal mandates of the government. Just as travellers imagined they were safer when driving, because they were not subject to the whims of terrorists, vaccine rejectionists imagine that their children are safer when rejecting vaccines, because they are not subject to the whims of the government. Even though the drivers felt safer, over 1,000 extra people died. Similarly, even though vaccine rejectionist parents think their children are “safer,” they actually face much greater danger.

A second factor that modifies perception of risk is a sense of control. There is a sense of control that comes from rejecting vaccines, as opposed to vaccinating children, which is mandated. The risk of death from NOT vaccinating a child is 1,000 times higher than the risk of death from vaccinating a child. Vaccine rejectionists appear to be entirely clueless on this point. In their minds, they cannot control the side effects of vaccines, but they can control the “health” of their children by feeding them “healthy” food and limiting their exposure to other people. They are more frightened by trivial or even imagined “risks” of vaccination which they cannot control, than the very real risks of infectious disease, which they think they can prevent.

The third factor is that risks of technology are widely perceived to be greater than risks from nature, even though in many cases they are not.

…many people fail to protect themselves adequately from the sun, in part because the sun is natural and because, for some of us, the benefit of a healthy glowing tan outweighs the risks of solar exposure. However, solar radiation is widely believed to be the leading cause of melanoma, which will kill an estimated 7,910 Americans this year.

It is axiomatic among “alternative” health advocates that “natural” choices are inherently safe just because they are natural. This is not and has never been true. Catching whooping cough or polio is entirely “natural,” and far more dangerous than any technological method of preventing or treating these diseases.

Many Americans are absolutely certain that the risks of not wearing a seatbelt are so small as to be trivial and are far outweighed by the risks of “toxins” in the environment. Similarly, vaccine rejectionists are absolutely certain that the risks of refusing vaccination are so small as to be trivial and are far outweighed by the risks of “toxins” in vaccination. This is a misperception of the risk. Because rejecting vaccination encourages a sense of control, is a risk that is freely chosen, and is perceived as natural the risk of vaccine rejection is misunderstood. The consequences of this misunderstanding are deadly.

There is a moral dimension to vaccine rejectionism that deserves attention. Vaccination is like many other aspects of living in a society: it has benefits and risks. Free-riders are people who elect to take the benefits, but refuse to accept the risks. The classic case of the free rider is a conservation water ban. People in a town are told not to water their lawns more than twice a week in order to conserve water. Most people, understanding the importance of water conservation, comply. However, there are always a few people who insists on secretly violating the ban. They believe that they will be protected from a water shortage because everyone else is conserving, and they don’t want to take the risk that their lawn will turn brown.

Vaccine rejectionism is similar, but far more serious. The greater the proportion of the population that is vaccinated, the greater the protection for all citizens. Vaccine rejectionists believe that they will be protected from contracting diseases because everyone else is getting vaccinated, and they don’t want to take the risk that their child will suffer a real (or a fabricated) risk of vaccination.

The vaccine rejectionists’ position is fundamentally unethical. They always and inevitably place more people at risk for disease than just the children who are not vaccinated. Indeed, those who are most at risk are the most vulnerable in the population, because they are too young or too sick to get vaccinated. It’s just like the free-riders who water their lawn during the water ban. They always and inevitably place other people at risk of a water shortage, not just themselves.

Vaccine rejectionism involves three all too human tendencies: fundamental misunderstanding of scientific principles, irrational risk perception, and selfishness. Vaccine rejectionists lack even the most basic understanding of immunology and epidemiology. Vaccine rejectionists have no concept of risk. They grossly overinflate the risk of vaccine complications and grossly underestimate the risks of vaccine preventable diseases. What is particularly ironic about vaccine rejectionism is that parents who are busily congratulating themselves on avoiding the risks associated with vaccines are doing so by being free-riders and taking advantage of everyone else.

Thomas May, a bioethicist, has written an excellent exposition of the free-rider problem in the article Public Communication, Risk Perception, and the Viability of Preventive Vaccination Against Communicable Diseases. The article appeared in the journal Bioethics in 2005. This article also includes one of the best explanations of vaccination I have read. On the results of vaccination programs:

Since its inception, the program of mandatory childhood vaccination for children entering the U.S. public school system has been remarkably successful – widely recognized as one of (if not the) most successful public health programs in history. The program has resulted in the eradication of smallpox, the elimination of polio, and a radical reduction in the number of cases of diphtheria, measles, pertussis (whooping cough), rubella, mumps, and a number of other serious diseases. For example, diphtheria has dropped from a peak of 206,939 cases in 1921 to only 4 cases in 1990, and similar drops in cases have occurred for measles, mumps, pertussis, and rubella. The success of the childhood vaccination program, however, faces threats from an increasingly visible anti-vaccination movement, and from visible (though extremely rare) cases of adverse reactions to vaccination. The DTP vaccine results in adverse events such as convulsions or shock for 1 in 1,750; acute encephalopathy for 0–10.5 in 1,000,000; and the MMR vaccine results in encephalitis or severe allergic reaction for 1 in 1,000,000. These risks are extremely low when compared to the adverse consequences from contracting vaccinepreventable disease (for pertussis, encephalitis for 1 in 20; death for 1 in 200; for measles, encephalitis for 1 in 2,000; death for 1 in 3,000) …

On how vaccines work:

No vaccine is 100% effective. The success of vaccination programs relies on a concept known as ‘herd immunity,’ wherein protection is achieved through attaining a high enough level of immunity to a disease so as to make exposure to the organism that causes the disease extremely unlikely. If a critical mass of people is immune, then, those who are not immune are protected through ‘herd immunity’… The actual level of vaccination necessary to maintain herd immunity is different for each potential disease (depending on the rate of effectiveness for the vaccine in question), but generally ranges from 83%–94%.So long as this level of vaccination is attained, those who refuse to be vaccinated are nonetheless protected through the unlikelihood that they will ever be exposed to the disease… If exemptions to vaccination should be great enough to threaten herd immunity, however, significant harms through exposure to vaccine-preventable disease could result not only for those exempted, but for those who are excluded from vaccination for medical reasons, and for those who are vaccinated yet remain susceptible to the disease (since, again, vaccination is not 100% effective).

This is precisely what has happened in the last year’s measles outbreak in Washington state. The level of vaccination had decreased to the point where herd immunity was compromised. As a result the children of vaccine rejectionists got measles, as predicted, and children who were too young to be vaccinated got measles as well, also as predicted.

On the logic of free-riding:

… [T]he action of any one individual will have a nearly imperceptible effect on the achievement of a collective goal, motivating free-riding behavior that seeks to garner the collective good at no cost to the individual in question. This will be true so long as an individual cannot be excluded from the collective good (as exemptors cannot be excluded from the protection provided when herd immunity is achieved), no matter how agreed upon the desirability of the collective good. However, widespread noncompliance with behavior necessary to achieve the collective good can result in loss of the good entirely – even for those who comply – a phenomenon often described as a ‘tragedy of the commons.’… [I]ncreases in exemption rates have occurred in several other states, most notably in Utah, where exemptions to mandatory vaccination rose high enough to threaten herd immunity and result in a measles outbreak where half of those contracting measles had been vaccinated but had not achieved immunity (not surprising, since the rate of exemption was roughly equal to the rate of vaccine ineffectiveness).

Vaccine rejectionism is more than a demonstration of ignorance on the part of vaccine rejectionists, and vaccine rejectionism harms others in addition to the children of vaccine rejectionists. Vaccine rejectionism is unethical because vaccine rejectionists implicitly or explicitly seek to enjoy the benefits of vaccination programs without sharing the risks. Vaccine rejectionism is unethical because it harms innocent others who have taken steps to protect themselves. Vaccine rejectionists need to take a closer look at their own behavior. Rather than congratulating themselves on their selfishness, they should be apologizing to the rest of us.

The flat-earthers are back!

Well, not exactly, but their descendants have come up with the flat-earth equivalent for the 21st century. They reject vaccination.

Vaccine rejectionists are all over the web promoting the “dangers” of vaccination. Vaccine rejectionism isn’t about vaccination, though. It’s all about parents and how they wish to view themselves.

It is important to understand that vaccine rejection is not based on science. There is no scientific data that supports vaccine rejection. Indeed vaccines are one of the greatest public health achievements of all time and virtually every accusation about vaccines by vaccine rejectionists is factually false.

Vaccines have been around for more than 200 years, and vaccine rejectionists have been around for almost as long. Over the years, they have made countless accusations about the “risks” of vaccines, and they have been wrong every single time. Despite the fact that vaccine rejectionists have been 100% wrong in their understanding of vaccines, statistics, risks and claims of specific dangers, they still have a large following. In large measure that is because the cultural claims of vaccine rejectionists resonate with prevailing cultural assumptions. Vaccine rejection is a social construct that has little if anything to do with objective reality or science.

‘Trusting blindly can be the biggest risk of all’: organised resistance to childhood vaccination in the UK (Hobson-West, Sociology of Health & Illness Vol. 29 No. 2 2007, pp. 198–215) explores these cultural attitudes. The first social construct is a re-imagining of the meaning of risk:

A primary way this is achieved … is to construct risk as unknowns… [This] serves as an example of how the realist image of risk as a representation of reality is undermined. In the realist account, uncertainty and unknowns may be recognised but are usually framed as temporary phases that are overcome by more research. For the [vaccine rejectionists], there is a more fundamental ignorance about the body and health and disease that will not necessarily be overcome by more research. Interestingly, this ignorance is constructed as a collective – ‘we’ as a society do not know the true impact of mass vaccination or the causes of health and disease.

The problem that vaccine rejectionism is based on false premises is elided by ignoring the actual scientific data and focusing instead on whether parents agree with health professionals or refuse to trust them. Agreement with doctors is constructed as a negative and refusal to trust is constructed as a positive cultural attribute:

Clear dichotomies are constructed between blind faith and active resistance and uncritical following and critical thinking. Non-vaccinators or those who question aspects of vaccination policy are not described in terms of class, gender, location or politics, but are ‘free thinkers’ who have escaped from the disempowerment that is seen to characterise vaccination…

This characterization of vaccine rejectionists can be unpacked even further; not surprisingly, vaccine rejectionists are portrayed as laudatory and other parents are denigrated.

… instead of good and bad parent categories being a function of compliance or non-compliance with vaccination advice … the good parent becomes one who spends the time to become informed and educated about vaccination…

… [vaccine rejectionists] construct trust in others as passive and the easy option. Rather than trust in experts, the alternative scenario is of a parent who becomes the expert themselves, through a difficult process of personal education and empowerment…

The ultimate goal is to become “empowered”:

Finally, the moral imperative to become informed is part of a broader shift, evident in the new public health, for which some kind of empowerment, personal responsibility and participation are expressed in highly positive terms.

So vaccine rejectionism is about the parents and how they would like to see themselves, not about vaccines and not about children. In the socially constructed world of vaccine rejectionists, risks can never be quantified and are always “unknown”. Parents are divided into those (inferior) people who are passive and blindly trust authority figures and (superior) rejectionists who are “educated” and “empowered” by taking “personal responsibility”.

This view depends on a deliberate re-definition of all the relevant terms, however, and that re-definition is unjustified and self aggrandizing. The risks of vaccination are not unknown. Believing that vaccines work is not a matter of “trust”; it is reality. Questioning authority is not the same as being “educated”; indeed, it isn’t even related. Lacking even basic knowledge of immunology and rejecting medical facts is not a sign of education, independent thinking or taking personal responsibility. It is a lack of education at best, and self serving, self aggrandizing ignorance at worst.

Part 2, the moral dimension: Vaccine rejectionism is unethical.

Part 3, misunderstanding risk: Panicking about small risks, oblivious to large risks.