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Peter H. Duesberg, 89, Renowned Biologist Turned H.I.V. Denialist, Dies

27 January 2026 at 17:33
His pioneering work on the origins of cancer was later overshadowed by his contrarian views, notably his rejection of the established theory that H.I.V. causes AIDS.

Β© Roger Ressmeyer/Corbis — VCG, via Getty Images

Peter H. Duesberg in 1985, holding a tray of petri dishes containing cultured cancer cells. In the late 1960s, he discovered the first known cancer-causing gene, or oncogene.

Thomas Fogarty, 91, Who Helped Revolutionize Vascular Surgery, Dies

27 January 2026 at 11:23
Drawing on his love of fly-fishing, he developed a balloon catheter that removes blood clots from patients’ limbs in a minimally invasive way. It has saved millions of lives.

Β© Jeff Zelevansky/Associated Press

Dr. Thomas J. Fogarty in 2000 on receiving the Lemelson-M.I.T. Prize for his work in developing medical technologies. He β€œsingle-handedly changed the face of cardiovascular surgery,” a colleague said.

William H. Foege, Key Figure in the Eradication of Smallpox, Dies at 89

His containment strategy helped wipe out the disease in the 1970s, one of the world’s greatest public health triumphs. He also led the C.D.C. and promoted childhood vaccination worldwide.

Β© Smith Collection/Gado, via Getty Images

William H. Foege in 1985. He played a critical role in making smallpox the first infectious disease to be altogether eliminated. He stood beside a bust of Hygeia, the Greek goddess of health, at C.D.C. headquarters in Atlanta.

Edith Flanigen, Award-Winning Research Chemist, Dies at 96

24 January 2026 at 21:50
She and her staff at Union Carbide created synthetic materials that improved various industrial processes, including purifying water. She also developed a way to make emeralds.

Β© Alan Zale for The New York Times

Edith Flanigen in 1990. Ms. Flanigen was so widely respected that β€œwhen she walked into a room of senior management at Union Carbide, they would all stand up,” a former colleague said.

Louis E. Brus, Nobel Laureate Who Illuminated the Nanoworld, Dies at 82

23 January 2026 at 14:42
He accidentally created some of the first quantum dots, tiny semiconductors that now power many electronics.

Β© Eduardo Munoz Alvarez/Associated Press

Louis E. Brus in 2023. β€œThe entire field of nanoscience and nanotechnology owes a huge debt to him,” said Moungi Bawendi, a chemist who shared the Nobel Prize with Dr. Brus and Aleksey Yekimov.

Joel Habener, Whose Research Led to Weight-Loss Drugs, Dies at 88

9 January 2026 at 17:54
His discovery of the protein fragment GLP-1 was crucial in the development of Ozempic, Wegovy and other blockbuster obesity and diabetes treatments.

Jerome Lowenstein, 92, Dies; Teaching Doctor With a Literary Sideline

9 January 2026 at 14:39
When not guiding students in a compassionate approach to patient care, he led a tiny publishing imprint that put out a much-rejected debut novel that won a surprise Pulitzer Prize.

Louis V. Gerstner, Who Revived a Faltering IBM in the ’90s, Dies at 83

29 December 2025 at 18:20
Installed as an outsider, he engineered a comeback, shifting the company’s focus from a waning mainframe computer business toward consulting and services.

Β© Richard L. Harbus for The New York Times

Louis V. Gerstner Jr. in his office at IBM’s headquarters in Armonk, N.Y., in 2001. He was with Dr. Yvette Burton, a technology consultant.
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