Five-minute digest
Jacobson v. Massachusetts
Summary
A Massachusetts statute authorized the board of health of any city or town to require the vaccination of its inhabitants when it judged that necessary for public health or safety, and provided a five-dollar penalty for adults who refused; children certified by a physician as unfit for vaccination were exempt. In February 1902, during a smallpox outbreak, the Cambridge board of health ordered all inhabitants who had not been vaccinated since 1897 to be vaccinated, and offered vaccination without charge. Henning Jacobson, a Swedish-born Lutheran minister in Cambridge, refused. He was prosecuted, offered at trial to prove that vaccination was ineffective and sometimes injurious and that he had personal reasons to fear it, and was convicted and fined five dollars when the judge excluded that evidence. The Massachusetts Supreme Judicial Court affirmed, and Jacobson brought the case to Washington. The question was whether the statute and the Cambridge regulation deprived Jacobson of liberty without due process or denied him equal protection under the Fourteenth Amendment. His side argued that compulsory vaccination was an unreasonable and arbitrary invasion of a free person's right to care for his own body and health, that the medical value of vaccination was disputed, and that he was entitled to show the jury why it was dangerous for him. Massachusetts argued that the police power plainly included measures to stop epidemics, that the legislature and local health boards were entitled to rely on prevailing medical opinion, and that the penalty was modest. On 20 February 1905 the Court affirmed, seven to two. Justice Harlan held that the authority to enact the statute lay in the state's police power, which extends to reasonable regulations protecting public health and safety. The liberty secured by the Constitution is not an absolute freedom from restraint; real liberty for all depends on limits that prevent each person from injuring others, and a community may protect itself against an epidemic on the principle of self-defense. Because vaccination had strong support in the experience of many countries, neither a court nor a jury could override the legislature's choice merely because some doubted it. Harlan cautioned that the police power might be exercised so arbitrarily in particular cases that courts must intervene, and that the law should not be read to require vaccinating an adult whose particular condition would make it cruel and inhuman in the last degree. Justices Brewer and Peckham dissented without opinion. The library text begins with the Court's legal analysis; the reporter's statement of the facts and the notes are not included. The Court relied on Jacobson in Zucht v. King (1922), upholding a school-vaccination rule, and in Buck v. Bell (1927), where Justice Holmes cited it in upholding Virginia's compulsory sterilization statute. Courts and commentators returned to the case frequently during the COVID-19 pandemic of 2020-2021.
Top Lessons
Liberty under law
Harlan answered Jacobson's claim to control his own body by describing liberty as something that exists only within a social order. Real liberty for all, he wrote, could not survive if each person might use his person or property regardless of injury to others. The argument places individual freedom and the common good in relation rather than simple opposition.
Who decides disputed medical questions?
Jacobson wanted to show the jury that vaccination was unreliable and risky. The Court held that the legislature had already weighed such questions, that vaccination was supported by the experience of many countries, and that courts and juries should not reopen the matter case by case. The ruling rested on deference to lawmakers advised by prevailing medical opinion.
The limits Harlan placed on his own holding
The opinion does not give health authorities unlimited power. Harlan said courts may intervene when regulations are arbitrary in particular cases, and that the statute should not be applied where vaccination would be cruel and inhuman to a particular adult. Later readers have debated how much weight these limits carry.
A precedent with a long reach
Jacobson was later cited for very different purposes: to uphold school-vaccination rules in 1922, Virginia's sterilization statute in 1927, and many public-health orders during the pandemic of 2020-2021. Following a precedent through its later uses shows how a principle stated for one setting can be extended to others.
Verified Quotes
Frequently cited
“But the liberty secured by the Constitution of the United States to every person within its jurisdiction does not import an absolute right in each person to be, at all times and in all circumstances, wholly freed from restraint.”
Frequently cited
“Real liberty for all could not exist under the operation of a principle which recognizes the right of each individual person to use his own, whether in respect of his person or his property, regardless of the injury that may be done to others.”
Frequently cited
“Upon the principle of self-defense, of paramount necessity, a community has the right to protect itself against an epidemic of disease which threatens the safety of its members.”
“But it is equally true that in every well-ordered society charged with the duty of conserving the safety of its members the rights of the individual in respect of his liberty may at times, under the pressure of great dangers, be subjected to such restraint, to be enforced by reasonable regulations, as the safety of the general public may demand.”
“We are not prepared to hold that a minority, residing or remaining in any city or town where smallpox is prevalent, and enjoying the general protection afforded by an organized local government, may thus defy the will of its constituted authorities, acting in good faith for all, under the legislative sanction of the state.”
“Before closing this opinion we deem it appropriate, in order to prevent misapprehension as to our views, to observe-perhaps to repeat a thought already sufficiently expressed, namely-that the police power of a state, whether exercised directly by the legislature, or by a local body acting under its authority, may be exerted in such circumstances, or by regulations so arbitrary and oppressive in particular cases, as to justify the interference of the courts to prevent wrong and oppression.”
Medical Lens
Jacobson is the foundational American decision on state authority to compel a public-health measure during an epidemic, and a key text in the history of smallpox vaccination, local boards of health and organized resistance to compulsory vaccination. It shows a court deferring to legislative judgment informed by prevailing medical opinion while reserving a narrow exception for individuals whose condition would make the measure cruel, and it later served as precedent for Buck v. Bell, a use historians of medicine treat as a cautionary episode.
- Opinion of the Court, on the board of health: Upon the principle of self-defense, of paramount necessity, a community has the right to protect itself against an epidemic of disease which threatens the safety of its members.
Harlan grounds the authority of a local board of health in a community's right of self-protection during an epidemic, the core public-health principle of the case.
- Opinion of the Court, on medical evidence: Since, then, vaccination, as a means of protecting a community against smallpox, finds strong support in the experience of this and other countries
The Court rests on the accumulated experience of vaccination programs abroad and at home rather than on trial testimony, illustrating how law treated medical consensus in 1905.
- Opinion of the Court, on exemptions: making an exception in favor of children certified by a registered physician to be unfit subjects for vaccination
The statute's medical exemption for children, and the Court's discussion of whether adults in like condition must also be excused, show early legal treatment of physician certification in public-health law.