Johnson & Johnson’s Vaccine Works Well and May Curb Virus Spread

The newly released documents, which include the F.D.A.’s first technical analysis of the company’s 45,000-person clinical trial, presented evidence that the vaccine was safe, with noticeably milder side effects than the Pfizer and Moderna vaccines and without any reports of...

Where a Vaccination Campaign Faces Skepticism, War and Corruption

KABUL, Afghanistan — Afghanistan, whose citizens have largely brushed aside the coronavirus pandemic as exaggerated or an outright hoax, is now preparing to distribute its first batch of vaccines.A half-million doses of the AstraZeneca-Oxford vaccine, produced by an Indian manufacturer,...

Researchers Halt Trial of Promising Sickle Cell Treatment

Just when it seemed that a new gene therapy for sickle cell disease was sailing toward success, the company developing the treatment found that two patients now have cancer and halted the trial.A patient who was treated five and a...

Vaccines Adapted for Variants Will Not Need Lengthy Testing, F.D.A. Says

The Food and Drug Administration said on Monday that vaccine developers would not need to conduct lengthy randomized controlled trials for vaccines that have been adapted to protect against concerning coronavirus variants.The recommendations, which call for small trials more like...

Intense Strength Training Does Not Ease Knee Pain, Study Finds

The idea made so much sense that it was rarely questioned: exercise to strengthen muscles around the knee helps patients with osteoarthritis, making it easier and less painful to move the inflamed joint.Nearly 40 percent of Americans over age 65...

U.K. Approves Study That Will Infect Volunteers With Covid

LONDON — In the coming weeks, a small, carefully selected group of volunteers is expected to arrive on the 11th floor of a London hospital to be given what the rest of the world’s 7.8 billion people have been trying...

U.K. Approves Study That Will Deliberately Infect Volunteers With Coronavirus

LONDON — In the coming weeks, a small, carefully selected group of volunteers is expected to arrive on the 11th floor of a London hospital to be given what the rest of the world’s 7.8 billion people have been trying...

Coronavirus Vaccine Nears Final Tests in Cuba. Tourists May Be Inoculated.

HAVANA — People wait in line for four hours to buy detergent in Havana. Cuban pharmacies are out of pain medication. There are national bread shortages.And yet the Cuban government says it is on the brink of an extraordinary scientific...

Some Teens Volunteer for Covid Vaccine Trials to Get Their Lives Back

“And I also thought it is important to have people of different ages and races represented,” added Audrey, who, like her brother, is Asian. (Their mother, Rachel, a nurse researcher who volunteered for a vaccine trial, asked that their last...

David Katzenstein, AIDS Researcher With Focus on Africa, Dies at 69

This obituary is part of a series about people who have died in the coronavirus pandemic. Read about others here.Dr. David Katzenstein may have been a dreamer, “with sometimes brilliant and sometimes slightly off-the-wall ideas,” one colleague said recently. But...
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