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Throughout history, the medical field has undergone remarkable progress. Unfortunately, these advancements often came at a significant cost, with numerous individuals paying the ultimate price to make the world a safer, healthier place. For some, their deaths have saved countless lives, and their sacrifices have not been in vain.
10. Arthur Bacot
Arthur Bacot was a clerk residing in London during the early 1900s, yet his true passion lay in the field of entomology. He published several works on the topic, and in 1910, the Lister Institute and the Indian Plague Commission invited him to work with fleas to investigate how plague was transmitted.
He later turned his focus to lice, conducting experiments with his own personal collection. Bacot nurtured the lice in cardboard boxes and cloth bags attached beneath his clothes, letting them feed on his blood.
In 1922, Bacot and his team traveled to Egypt to study lice infected with typhus, which they had gathered from a public bathhouse. While there, Bacot was bitten by the lice and ultimately succumbed to typhus. However, his research made significant contributions to understanding how typhus and other diseases spread.
9. Dr. William Stark
In the 18th century, Dr. William Stark embarked on a series of experiments to observe the effects of a severely restricted diet. Unfortunately, the result was his death.
After his death, his research was published. It included thorough documentation on everything from the exact amount of food and water he consumed to some of the most detailed records available on the effects of severe nutritional deprivation on the human body. For his initial diet, he only consumed bread and water. Over time, he incorporated other foods like boiled beef, suet, eggs, and cheese.
He excluded fruits and vegetables, and soon began to notice his gums turning black and bloody, a primary symptom of scurvy. He passed away on January 14, 1770, just before he planned to introduce fruits and vegetables into his diet.
8. Daniel Carrion
Oroya fever emerged in Peru in 1871, characterized by skin lesions, fever, a high mortality rate, and resistance to conventional treatments. In 1885, medical intern Daniel Carrion began researching this deadly disease that struck so quickly, leaving its victims with little time to seek medical help before succumbing to its effects.
Carrion injected himself with a serum extracted from the facial lesions of a patient already infected with the disease. His intention was to observe the entire progression of the illness without intervening in its course. He died just over a month later, having demonstrated that Oroya fever and verruga disease were two different phases of the same illness, now known as Carrion's disease.
Carrion was later honored as a medical martyr and declared a national hero of Peru.
7. Clara Maass
Clara Maass answered the call for nurses to care for yellow fever patients in Havana. At 25 years old, this experienced nurse had just recovered from dengue fever contracted in the Philippines. From March to June 1901, she volunteered to undergo experimental inoculations and intentionally be infected with yellow fever to help build immunity to the disease.
She passed away just days later, sparking widespread outrage in the press. Maass had been compensated $100 for her participation, which raised concerns about how fully informed she (and other volunteers) had been. While volunteers signed consent forms, a subsequent review revealed that some critical information—such as the high mortality rate associated with yellow fever—was omitted. Despite signing, many volunteers believed they were at minimal risk.
Public outrage was swift, and all human experimentation involving yellow fever was immediately stopped.
6. Ellen Roche
In 2001, 24-year-old Ellen Roche from the Johns Hopkins Asthma and Allergy Center volunteered for a study designed to investigate how the respiratory system in healthy individuals prevents asthma attacks. The study involved intentionally triggering an asthma attack in a healthy participant and observing the body’s reaction.
After inhaling hexamethonium, Roche developed a severe cough and was placed on a ventilator within a week. She passed away one month after consenting to participate in the study. Her death prompted a series of federal investigations into the study’s procedures, the information provided to volunteers, and the steps needed to assess study risks.
The blame was directed at the Johns Hopkins research team and the authors of the studies referenced in their research. As a result, Johns Hopkins, the FDA, and the Office for Human Research Protections began revising their guidelines to prevent such a tragedy from occurring again.
5. Clarence Dally
Clarence Dally, a skilled glassblower, worked at Thomas Edison’s laboratory. In 1895, Edison and Dally began experimenting with X-rays, and Dally would stand in radiation for extended periods of time.
By 1900, Dally had started developing lesions. His left hand had been exposed to X-rays for countless hours, and when it became too painful to use, he began using his right hand. Soon after, he had to keep his hands submerged in water to soothe the burning sensation.
The severe burns on his hands were treated with skin grafts from his legs. Eventually, his left arm had to be amputated, and four fingers were removed from his right hand. It was only at this point that Dally ceased working with Edison, though Edison vowed to support him for the rest of his life.
Dally’s right arm was amputated in 1903, and he passed away in 1904. Following his death, Edison abandoned his work with X-rays due to the dangers they posed.
4. Simeon Shaw
In the 1980s, the test subject referred to as CAL-2 was revealed to be Simeon Shaw, a four-year-old boy from Australia. When Simeon’s family filed a lawsuit over his death in 1997, the meager settlement they received led to comparisons between the US researchers and Nazi doctors involved in unethical experiments.
Simeon had been diagnosed with a rare form of bone cancer when he was enrolled in a study where subjects were injected with plutonium. He received medical treatment at the University of California, San Francisco, in April 1946, and was discharged in May. Simeon died on January 6, 1947.
As the courts examined the events surrounding his tragic passing, they were unable to determine the purpose of the experiment. According to research notes, the study aimed in part to understand the effects of bone-seeking radionuclides on bone cancers and to investigate potential peacetime uses for the material. The experimentation continued.
3. Ronald Maddison
In 2003, an inquest into the 1953 death of RAF engineer Ronald Maddison uncovered a grim chapter in British history. Maddison had volunteered to participate in trials at Porton Down, believing he was contributing to the search for a cure for the common cold. However, he was subjected to a lethal dose of 200 milligrams of sarin, a nerve agent, to determine the fatal exposure threshold.
It wasn't until fifty years later that Alfred Thornhill, who had been silenced by the Ministry of Defense, bravely came forward to recount witnessing Maddison’s horrifying death. Thornhill's testimony, combined with the Maddison family’s relentless pursuit of justice, led to a public inquiry that revealed five decades of chemical and biological research conducted at Porton Down.
2. Elizabeth Fleischman Ascheim
Elizabeth Fleischman Ascheim was regarded as one of the foremost early X-ray technicians, celebrated in both military and civilian medical circles. During the Spanish-American War, she utilized fallen and injured soldiers to demonstrate the potential of X-ray technology in locating bullets and assessing the severity of injuries.
In order to reassure some patients that the procedure was safe and painless, she would often expose herself to the X-rays first. By 1903, she began developing lesions on her hands. By the end of the year, she was compelled to seek medical attention for her condition.
Her arm was amputated in 1904, but the cancer and lesions reappeared at the site of the amputation. She passed away on August 3, 1905. Although her work highlighted the hazards of X-rays, it also contributed to the recognition of X-rays as a potentially life-saving tool in the medical field.
1. Jesse Lazear
While Walter Reed is credited with discovering the cure for yellow fever, it was Jesse Lazear who contracted the disease and ultimately sacrificed his life in the process.
Lazear became involved in yellow fever research towards the conclusion of the Spanish-American War. While the exact mode of transmission was unknown, the two primary theories were that it was either a bacterial infection or transmitted through mosquito bites. Reed’s team conducted experiments to test which hypothesis was correct.
Some volunteers were exposed to contaminated clothing and bedding from yellow fever patients, while Lazear deliberately exposed others to mosquitoes. For many years, it was assumed that Lazear had been bitten unintentionally.
However, when Reed’s journals were later made public, it became clear that Lazear had purposely infected himself with the disease. His actions confirmed that yellow fever was transmitted by mosquitoes, marking a significant breakthrough in medical research.
+Further Reading
Experiments involving human subjects have often been deeply disturbing, especially in the past. Below are some chilling examples from historical archives that highlight this unsettling truth. These accounts are not for the faint of heart.
Top 10 Malevolent Human Experiments 10 Shocking Historical Medical Experiments 10 Grisly Medical Experiments From the Past 10 Disturbing and Deranged Human Experiments 10 Extreme Instances of Self-Experimentation
