[Editor's Note: This opinion essay is in response to our current Big Question, which we posed to experts with different viewpoints: "Where should society draw the line between requiring vaccinations for children and allowing parental freedom of choice?"]

Our children are the future. The survival of humanity is advanced by the biological imperative that mothers and fathers want and need to protect their children and other children from being harmed for any reason.

Science is not perfect, doctors are not infallible, and medical interventions come with risks.

In the 21st century, consensus science considers vaccination to be one of the greatest inventions in the history of medicine and the greatest achievement of public health programs. The national vaccination rate for U.S. kindergarten children is 94 percent and most children today receive 69 doses of 16 federally recommended vaccines. However, public health is not simply measured by high vaccination rates and absence of infectious disease, which is evidenced by the chronic inflammatory disease and disability epidemic threatening to bankrupt the U.S. health care system.

Science is not perfect, doctors are not infallible, and medical interventions come with risks, which is why parents have the power to exercise informed consent to medical risk taking on behalf of their minor children.

As a young mother, I learned that vaccine risks are 100 percent for some children because, while we are all born equal under the law, we are not born all the same. Each one of us enters this world with different genes, a unique microbiome and epigenetic influences that affect how we respond to the environments in which we live. We do not all respond the same way to infectious diseases or to pharmaceutical products like vaccines.

Few parents were aware of vaccine side effects in 1980, when my bright, healthy two-and-a-half year-old son, Chris, suffered a convulsion, collapse, and state of unconsciousness (encephalopathy) within hours of his fourth DPT shot, and then regressed physically, mentally and emotionally and became a totally different child. Chris was eventually diagnosed with multiple learning disabilities and confined to a special education classroom throughout his public school education, but he and I both know his vaccine reaction could have been much worse. Today, Chris is an independent adult but many survivors of brain injury are not.

The public conversation about several hundred cases of measles reported in the U.S. this year is focused on whether every parent has a social obligation to vaccinate every child to maintain "community immunity," but vaccine failures are rarely discussed. Emerging science reveals that there are differences in naturally and vaccine acquired immunity, and both vaccinated and unvaccinated children and adults transmit infections, sometimes with few or no symptoms.

Nearly 40 percent of cases reported in the 2015 U.S. measles outbreak occurred in recently vaccinated individuals who developed vaccine reactions that appeared indistinguishable from measles. Outbreaks of pertussis (whooping cough) in highly vaccinated child populations have been traced to waning immunity and evolution of the B. pertussis microbe to evade the vaccines. Influenza vaccine effectiveness was less than 50 percent in 11 of the past 15 flu seasons.

Vaccine policymakers recognize that children with severe combined immune deficiency or those undergoing chemotherapy or organ transplants are at increased risk for complications of infectious diseases and vaccines. However, there is no recognition of the risks to healthy infants and children with unidentified susceptibility to vaccine reactions, including children whose health suddenly deteriorates without explanation after vaccination. Medical care is being denied to children and adults in the U.S. if even one government recommended vaccination is declined, regardless of health or vaccine reaction history.

When parents question the risks and failures of a commercial pharmaceutical product being mandated for every child, the answer is not more force but better science and respect for the informed consent ethic.

The social contract we have with each other when we live in communities, whether we belong to the majority or a minority, is to care about and protect every individual living in the community. One-size-fits-all vaccine policies and laws, which fail to respect biodiversity and force everyone to be treated the same, place an unequal risk burden on a minority of unidentified individuals unable to survive vaccination without being harmed.

A law that requires certain minorities to bear a greater risk of injury or sacrifice their lives in service to the majority is not just or moral.

Between 1991 and 2013, the Institute of Medicine (IOM) published reports documenting that vaccines can cause brain inflammation and other serious reactions, injuries and death. A 2012 IOM report acknowledged that there are genetic, biological, and environmental risk factors that make some individuals more susceptible to adverse responses to vaccines but often doctors cannot identify who they are because of gaps in vaccine science. Congress acknowledged this fact a quarter century earlier in the 1986 National Childhood Vaccine Injury Act, which created a federal vaccine injury compensation program alternative to a lawsuit that has awarded more than $4 billion to vaccine-injured children and adults.

We give up the human right to autonomy and informed consent at our peril, no matter where or in what century we live.

Vaccine manufacturers and administrators have liability protection, yet today almost no health condition qualifies for a medical vaccine exemption under government guidelines. Now, there is a global call by consensus science advocates for elimination of all personal belief vaccine exemptions and censorship of books and public conversations that criticize vaccine safety or government vaccine policy. Some are calling for quarantine of all who refuse vaccinations and criminal prosecution, fines and imprisonment of parents with unvaccinated children, as well as punishment of doctors who depart from government policy.

There is no civil liberty more fundamentally a natural, inalienable right than exercising freedom of thought and conscience when deciding when and for what reason we are willing to risk our life or our child's life. That is why voluntary, informed consent to medical risk-taking has been defined as a human right governing the ethical practice of modern medicine.

In his first Presidential inaugural address, Thomas Jefferson warned:

"All, too, will bear in mind this sacred principle, that though the will of the majority is in all cases to prevail, that will to be rightful must be reasonable; that the minority posses their equal rights, which equal law must protect, and to violate would be oppression."

The seminal 1905 U.S. Supreme Court decision, Jacobson v. Massachusetts, affirmed the constitutional authority of states to enact mandatory smallpox vaccination laws. However, the justices made it clear that implementation of a vaccination law should not become "cruel and inhuman to the last degree." They warned, "All laws, this court has said, should receive a sensible construction. General terms should be so limited in their application as not to lead to injustice, oppression, or an absurd consequence. It will always, therefore, be presumed that the legislature intended exceptions to its language, which would avoid results of this character."

Mothers and fathers, who know and love their children better than anyone else, depend upon sound science and compassionate public health policies to help them protect their own and other children from harm. If individuals susceptible to vaccine injury cannot be reliably identified, the accuracy of vaccine benefit and risk calculations must be reexamined. Yet, consensus science and medicine around vaccination discourages research into the biological mechanisms of vaccine injury and death and identification of individual risk factors to better inform public health policy.

A critic of consensus science, physician and author Michael Crichton said, "Let's be clear: the work of science has nothing whatever to do with consensus. Consensus is the business of politics. Period."

Condoning elimination of civil liberties, including freedom of speech and the right to dissent guaranteed under the First Amendment of the U.S. Constitution, to enforce vaccination creates a slippery slope. Coercion, punishment and censorship will destroy, not instill, public trust in the integrity of medical practice and public health laws.

There are more than a dozen new vaccines being fast tracked to market by industry and governments. Who in society should be given the power to force all children to use every one of them without parental consent regardless of how small or great the risk?

We give up the human right to autonomy and informed consent at our peril, no matter where or in what century we live. Just and compassionate public health laws that protect parental and human rights will include flexible medical, religious and conscientious belief vaccine exemptions to affirm the informed consent ethic and prevent discrimination against vulnerable minorities.

[Editor's Note: Read the opposite viewpoint here.]