After the CD8 cells did their job, they remained in the blood but, unexpectedly, they turned into CD4 cells. And when the Penn investigators removed CD4 cells from the blood of Mr. Ludwig and Mr. Olson, they saw that those cells could kill B cells in the laboratory. The CD4 cells had turned into assassins […]
Alan A. Stone, an iconoclastic scholar who used his dual tenured appointments at Harvard’s law and medical schools to exert a powerful influence on the evolution of psychiatric ethics over the last half-century, died on Jan. 23 at his home in Cambridge, Mass. He was 92. His son Douglas said the cause was laryngeal cancer. […]
“Sadly, we are seeing the rates of hospitalizations increasing for children 0 to 4, children who are not yet currently eligible for Covid-19 vaccination,” Dr. Rochelle Walensky, the director of the Centers for Disease Control and Prevention, told reporters this month. She said the high rate of transmission of the Omicron variant was likely to […]
Because an immunocompromised host doesn’t produce a lot of antibodies, many viruses are left to propagate. And new mutant viruses that resist the antibodies can multiply. A mutation that allows a virus to evade antibodies isn’t necessarily advantageous. It could make the virus’s spike protein unstable so that it can’t latch quickly onto a cell, […]
Eat on a fancy plate! I love this tip for turning an everyday meal into a celebration. Creating a colorful and appetizing plate of food and reveling in the joy of cooking and eating are all ways to practice mindful eating. Studies suggest that the health benefits of Mediterranean-style eating, which includes an abundance of […]
A third study, begun about 30 years ago and still ongoing, looks at dietary factors besides salt, like animal protein, that contribute to high blood pressure. “I remember there being criticism that he was an older man in his 70s, and could he complete the five years of the project,” Dr. Philip Greenland, a professor […]
The police had warned Xie Yang, a human rights lawyer, not to go to Shanghai to visit the mother of a dissident. He went to the airport anyway. His phone’s health code app — a digital pass indicating possible exposure to the coronavirus — was green, which meant he could travel. His home city, Changsha, […]
While they may not be hospitalized for respiratory illnesses, “we are seeing some exacerbation of other conditions in individuals who are vulnerable,” said Dr. Sandra Nelson, an infectious disease specialist at Massachusetts General Hospital and an assistant professor of medicine at Harvard Medical School. In some cases, patients were dehydrated from the effects of a […]
For weeks, the school principal had been imploring Kemika Cosey: Would she please allow her children, 7 and 11, to get Covid shots? Ms. Cosey remained firm. A hard no. But Mr. Kip — Brigham Kiplinger, the principal of Garrison Elementary School in Washington, D.C. — swatted away the “no’s.” Ever since the federal government […]
Dr. Johan V. Hultin, a pathologist whose discovery of victims of the 1918 flu pandemic buried in Alaskan permafrost led to a critical understanding about the virus that caused the outbreak, died on Saturday at his home in Walnut Creek, Calif. He was 97. The death was confirmed by his wife, Eileen Barbara Hultin. Dr. […]
