Six Discoveries That Saved Millions: An Illustrated History of the Breakthroughs in Physiology and Medicine That Reshaped Human Health
Toronto, 1921–1923 • The Discovery That Made Diabetes Survivable
Before 1921, a diagnosis of Type 1 diabetes was a death sentence. Children wasted away on starvation diets that bought only months. In a borrowed Toronto laboratory, a young surgeon named Frederick Banting and a 22-year-old medical student, Charles Best, isolated the hormone insulin from canine pancreases. By January 1922, a 14-year-old boy named Leonard Thompson, dying in Toronto General Hospital, became the first human saved. The 1923 Nobel Prize ignited a feud over credit that has never quite ended.
1891–1941 • Canadian war veteran, orthopedic surgeon
An obscure 29-year-old surgeon in London, Ontario, with no patients and no research experience. After reading a journal article one sleepless October night in 1920, he scrawled a 25-word note that would change medicine: ligate the pancreatic ducts of dogs, wait for digestive cells to atrophy, then extract what remained. He talked his way into a summer at J.J.R. Macleod's University of Toronto lab. Furious that Best was excluded from the Nobel, Banting split his half of the prize money with him.
The 22-year-old medical student excluded from the Nobel. Drew the short straw with classmate Clark Noble to spend summer 1921 with Banting. Banting always insisted Best deserved equal credit.
The Toronto physiology professor who provided the lab and supervision. Banting accused him of taking undeserved credit; modern historians side more with Macleod.
The biochemist who purified the extract into clinically usable insulin. Excluded from the Nobel but received half of Macleod's prize money.
The 14-year-old patient who received the first effective insulin injection. Lived 13 more productive years — long enough to enlist in the Canadian military.
The insulin story established a template repeated through Nobel history: a young, pivotal collaborator (Best) is excluded by the three-laureate maximum. Banting's gesture — splitting his prize money — remains one of the most ethical responses in Nobel history. Compare to Rosalind Franklin (DNA) and Jocelyn Bell Burnell (pulsars), where the slighted collaborators received no equivalent acknowledgment.
London & Oxford, 1928–1945 • The Antibiotic Era Begins
Alexander Fleming's untidy lab habits at St Mary's Hospital, London, produced a chance contamination on a discarded staphylococcus plate in September 1928 — a blue-green mold that had killed the bacteria around it. Fleming named the mold's secretion penicillin and published in 1929. The discovery languished for a decade until Howard Florey and Ernst Chain at Oxford developed methods to mass-produce and concentrate it. By 1944 it was saving Allied soldiers; by 1945 the trio shared the Nobel Prize. Penicillin remains the foundation of modern antibiotics.
1881–1955 • Scottish physician at St Mary's Hospital
A Scottish farm boy turned bacteriologist who served as a captain in the Royal Army Medical Corps in WWI. Notorious for messy benches, he returned from a holiday in September 1928 to find a stack of unwashed Petri dishes near a window. One had a fluffy mold colony with a clear ring of dissolved staphylococci around it. "That's funny," he reportedly said. He could not purify the active substance — that took Florey and Chain over a decade later.
The Australian pathologist whose Oxford team turned penicillin into medicine. He arguably did more to save lives than Fleming — but Fleming got the public glory.
German-Jewish biochemist who fled Nazi Germany. Solved the chemistry of penicillin purification at Oxford.
The unsung Oxford technician who designed the production apparatus from biscuit tins and bedpans. Made the Pfizer scale-up possible. Never received the Nobel.
The first human treated with injected penicillin. His recovery and subsequent death from supply exhaustion drove the urgency to scale production.
Fleming saw the mold; Florey and Chain made it medicine. Like the insulin trio, this was a discovery that required multiple talents and a decade of follow-up. Unlike insulin, all three principals received the Nobel — though the technician Heatley, who actually built the apparatus, was excluded. The pattern recurs throughout the laureates: a senior figure gets the prize, while the postdoc or student who did the bench work goes unrecognized.
Boston, Pittsburgh, Cincinnati, 1949–1961 • The Most Famous Snub in Nobel History
Polio was the terror of postwar America: 58,000 cases in 1952 alone, paralyzing children and locking them in iron lungs. The Nobel Committee solved a paradox in 1954 by awarding the Medicine prize not to the famous vaccine developers but to John Enders, Frederick Robbins, and Thomas Weller, whose ability to grow poliovirus in non-nervous tissue cultures (1949) made all subsequent vaccines possible. Jonas Salk's killed-virus vaccine (1955) and Albert Sabin's live oral vaccine (1961) eliminated polio in the West — yet neither man ever received a Nobel.
1914–1995 • American physician, virologist, public hero
The son of Russian-Jewish immigrants, born in East Harlem. Studied medicine at NYU but chose research over practice. At the University of Pittsburgh, he led the team that developed the first effective polio vaccine using formalin-killed virus — a heretical approach that the medical establishment said would never work. After the historic April 12, 1955 announcement of the field trial results ("Safe, Effective, and Potent"), Edward R. Murrow asked who owned the patent. "Well, the people, I would say," Salk replied. "There is no patent. Could you patent the sun?"
The "Father of Modern Vaccines." His tissue-culture method enabled measles, mumps, rubella, and polio vaccines. Won the 1954 Nobel.
Polish-born American who developed the oral live-attenuated polio vaccine. Refused to patent it. Tested it in the Soviet Union when American trials were blocked. Never received the Nobel.
Salk's mentor at Michigan and director of the historic 1954 field trial. Made the famous April 12, 1955 announcement.
The polio-paralyzed U.S. president whose advocacy launched the March of Dimes (1938) — the foundation that funded Salk's research.
The Nobel Committee's choice to award Enders rather than Salk or Sabin remains the most famous snub in Medical Nobel history. The Committee viewed vaccine development as engineering atop a fundamental discovery. Salk himself never expressed bitterness publicly — he founded the Salk Institute and later worked on HIV vaccines. The pattern recurs in 2023 (mRNA): the Committee finally rewarded vaccine pioneers Karikó and Weissman, perhaps in atonement.
Cambridge & King's College London, 1953 • The Most Famous Discovery of the Century
On February 28, 1953, Francis Crick walked into the Eagle pub in Cambridge and announced he and James Watson had "found the secret of life." Their double-helix model of DNA, published in Nature on April 25, 1953, was a single-page paper that ignited modern molecular biology. The model was built largely from X-ray diffraction images produced by Rosalind Franklin and Maurice Wilkins at King's College London — particularly Franklin's "Photograph 51," shown to Watson without her permission. Franklin died of ovarian cancer in 1958 at 37; the 1962 Nobel went to Watson, Crick, and Wilkins. The story of credit denied haunts the discovery to this day.
Watson: 1928–present • Crick: 1916–2004
James Watson, a 24-year-old American postdoc, and Francis Crick, a 35-year-old British physicist-turned-biologist, were an unlikely partnership at the Cavendish Laboratory in Cambridge. They built physical models of base pairings rather than doing experiments. The flash of insight came when Watson saw Franklin's Photograph 51 (shown to him by Wilkins without Franklin's knowledge) and realized DNA was a helix. The chemical structure of base pairing — A with T, G with C — immediately suggested how genetic information was copied.
The X-ray crystallographer whose Photograph 51 was decisive. Died of ovarian cancer before the Nobel and was never publicly acknowledged by Watson and Crick during her lifetime.
Shared the 1962 Nobel for the King's College X-ray work. Showed Franklin's photograph to Watson — an action that has been debated ever since.
The PhD student who actually took Photograph 51 with Franklin. Outlived all the principals. Helped restore Franklin's reputation in his last years.
The greatest American chemist of the era. Proposed an incorrect triple-helix model in February 1953 — spurring Watson and Crick to publish quickly before Pauling could correct his error.
The Nobel rule against posthumous awards (only relaxed once, in 2011 for Ralph Steinman) means Franklin could never have received the prize after her 1958 death. But her contemporaries could have credited her in their lectures and memoirs — and largely did not. The DNA story, more than insulin or polio, established Franklin as the patron saint of overlooked women in science. Her case helped transform how the history of science is written.
Stony Brook & Nottingham, 1973–2003 • The Bitter Dispute Over Who Invented It
Magnetic Resonance Imaging exploits the spin of hydrogen nuclei in the body's water to produce three-dimensional images without X-rays or radioactive tracers. Paul Lauterbur (Stony Brook) and Peter Mansfield (Nottingham) shared the 2003 Nobel Prize for the spatial encoding methods that turned NMR spectroscopy into clinical imaging. The bitterly excluded third figure was Raymond Damadian, an Armenian-American physician who in 1971 first showed that cancer tissue had different NMR relaxation times. He took out a full-page ad in the New York Times denouncing the Nobel. The dispute over who really invented MRI has never been settled.
1929–2007 • American chemist at Stony Brook
An American chemist at Stony Brook University, New York. While eating a hamburger at the Eat-N-Park diner near the University of Pittsburgh in September 1971, he sketched on a napkin the idea of using gradient magnetic fields to encode spatial information into NMR signals. Nature initially rejected his 1973 paper. He produced the first MRI image of two test tubes of water on March 16, 1973. He suspected as early as the 1970s that Damadian would dispute his credit.
British physicist who developed echo-planar imaging, making MRI scans practically fast. Knighted in 1993. Shared the 2003 Nobel.
The cardiologist who first showed cancer tissue could be detected by NMR. Built "Indomitable," now in the Smithsonian. Excluded from the 2003 Nobel and never reconciled to it.
The first human ever imaged by MRI. Postdoc to Damadian. His 4-hour-45-minute scan in 1977 produced the historic first MRI of a living human body.
Japanese-American researcher who in 1990 discovered BOLD contrast — the basis of functional MRI (fMRI). His work created neuroscience's most important tool. Has not received a Nobel.
The Nobel rule limiting an award to three laureates produces collateral damage when discoveries involve more contributors. In MRI, the Nobel Committee chose physicists (Lauterbur, Mansfield) over a clinician (Damadian) — emphasizing fundamental method over biomedical application. Damadian's public protest, unique in Nobel history, did not change the rules. The same three-person ceiling shaped the insulin (Best excluded), DNA (Franklin excluded), and mRNA-vaccine narratives.
Philadelphia, 2005–2023 • Decades of Rejection Reversed by COVID-19
For decades, Katalin Karikó, a Hungarian-born biochemist at the University of Pennsylvania, was told mRNA was a dead end. Her grants were rejected; she was repeatedly demoted; she was almost deported. In 1997 she met immunologist Drew Weissman at a copying machine. Together they discovered in 2005 that swapping uridine for pseudouridine in synthetic mRNA prevented inflammation — making it usable as therapy. The paper was rejected by Nature and Science before being published in Immunity. Fifteen years later, that single chemical modification underpinned the BioNTech/Pfizer and Moderna COVID-19 vaccines, which were administered to over 5 billion people. The 2023 Nobel made Karikó's vindication complete.
1955–present • Hungarian-American biochemist
Born in Szolnok, Hungary, in a one-room reed-roofed house with no running water. Emigrated in 1985 with $1,200 sewn into her daughter's teddy bear. Spent over 20 years at the University of Pennsylvania struggling to make mRNA work. Demoted in 1995 from a tenure-track position to research assistant professor — she could not get grants. Survived on side projects. In 2013 she finally left for BioNTech in Mainz. Her daughter Susan Francia is a two-time Olympic gold medalist in rowing.
The immunologist whose collaboration with Karikó produced the breakthrough. Currently directs Penn's vaccine research center.
Founders of BioNTech, the Mainz biotech that hired Karikó in 2013. Designed the BNT162b2 vaccine in a single weekend in January 2020.
Canadian biochemist who developed the lipid nanoparticles that protect mRNA in the body. His work was equally essential. Has not received a Nobel.
Karikó's daughter. Two-time Olympic gold medalist (2008, 2012) in the U.S. women's rowing eight. Studied at Penn while her mother fought to keep her career alive.
Karikó's case is the rarest in Nobel history: a mid-career researcher repeatedly punished by her own institution who lived to receive the Prize for the work she fought for. The 2023 award reads like atonement for the polio snubs of 1954 and the engineering bias against vaccinology. It also accelerated the Nobel turnaround — from discovery (2005) to award (2023) in 18 years, faster than insulin (5 years!) but unprecedented for a vaccine technology.
| Discovery | Year of Award | Years to Nobel | Laureates | Famous Exclusion | Lives Saved | Status |
|---|---|---|---|---|---|---|
| Insulin | 1923 | 2 yrs (record) | Banting, Macleod | Best, Collip | >500M users | Universal Use |
| Penicillin | 1945 | 17 yrs | Fleming, Florey, Chain | Heatley | ~200M lives | Universal Use |
| Polio Tissue Culture | 1954 | 5 yrs | Enders, Robbins, Weller | Salk, Sabin | ~20M paralysis cases averted | ~Eradicated |
| DNA Double Helix | 1962 | 9 yrs | Watson, Crick, Wilkins | Franklin (deceased) | Foundational | Foundational |
| MRI | 2003 | 30+ yrs | Lauterbur, Mansfield | Damadian (protested) | ~150M scans/yr | Universal Use |
| mRNA Vaccines | 2023 | 18 yrs | Karikó, Weissman | (Cullis et al.) | ~14M COVID deaths averted (yr 1) | Expanding |
Every discovery here had crucial collaborators excluded by Nobel rules: Best (insulin), Heatley (penicillin), Salk and Sabin (polio), Franklin (DNA), Damadian (MRI), Cullis (mRNA). The three-person maximum is the most contested rule in science.
Insulin won 2 years after discovery; MRI took 30. The Committee weighs immediate clinical impact versus need to confirm a method's robustness. The mRNA award (18 years) shows a willingness to move faster when public benefit is overwhelming.
Of 230+ Medical Nobel laureates, only 13 are women. Franklin (DNA) was excluded by death; Karikó's 2023 Nobel was a long-overdue correction; only Gerty Cori (1947) preceded these in chemistry-adjacent work. Underrepresentation persists.
The Committee favors fundamental mechanism (Enders, Lauterbur) over public-health implementation (Salk, Damadian). The 2023 mRNA award broke this pattern, rewarding pioneers whose work directly saved lives during the pandemic.
Banting sold insulin's patent for $1 ("Could you patent the sun?" became Salk's echo). Modern biomedicine is the opposite: BioNTech and Moderna mRNA patents are worth tens of billions. The question of whether breakthrough drugs should be public goods recurs each generation.
Two archetypes: the discoverer (Fleming, Damadian, Wolff) who finds the phenomenon, and the developer (Florey, Lauterbur, Karikó) who turns it into medicine. The Nobel typically rewards the developer — though MRI was an exception, sparking the Damadian protest.
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