Myocarditis, a rare side effect, occurs mostly after the second dose. So in some countries, officials are trying out single doses for children.
The most common method of assessing the condition may make Black patients seem less ill than they really are, some experts say. A new report calls for scrapping the formula.
Independent experts, including government scientists, were skeptical of the research from Israel, which included limited data over a short period.
An editorial published by more than 200 journals worldwide warned of ‘catastrophic harm to health that will be impossible to reverse.’
The research did not assess the risks specifically for young males, who are the most likely to develop the rare side effect.
In a once unimagined accomplishment, electrodes implanted in the man’s brain transmit signals to a computer that displays his words.
The experimental treatment relies on radioactive molecules that seek out tumor cells, a strategy that may be useful against other cancers.
An editor’s departure at JAMA is bringing calls for a sharper focus on racism and its consequences.
Public health specialists suggest the Games’ safety plans put athletes and others at risk, and the Asahi Shimbun newspaper, an Olympic partner, calls for cancellation.
Two studies showed the vaccine to be more than 95 percent effective at protecting against severe disease or death from the variants first identified in South Africa and the U.K.
Vaccines do a good job of protecting us from coronavirus, but fear and confusion about the rise of variants have muddled the message. Here are answers to common questions.
New studies from Germany and Norway examined cases involving mostly younger people who developed serious and sometimes fatal blood disorders.
A drug that unleashes the immune system offers a rare glimmer of hope for those with a cancer that resists most treatments.
Doctors are reporting additional, minor symptoms that appear several days after people have received their shots.
In a clinical trial, participants taking semaglutide lost 15 percent of their body weight, on average.
A study showed that the devices, which measure oxygen levels in the blood, were three times more likely to give misleading readings in people with dark skin.
The vital medical devices could be inexpensive and available over the counter. But efforts have stalled under the F.D.A.
Baricitinib had previously attracted some scrutiny from experts, who were unsure when it would most help their patients.
Some vaccine experts worry that “unblinding” the trials and giving all of the volunteers vaccines would tarnish the long-term results.
Two new studies clarify how Covid-19 spreads among young adults and expose the limits of quarantine measures.
Recent studies have created doubts about an agent in cytokine storms, and suggest that treatments for it may not help.
Downplaying the dangers of the pandemic and politicizing public health measures was grossly negligent and cost untold lives.
Editors at the world’s leading medical journal said the Trump administration “took a crisis and turned it into a tragedy.”
Doctors at Massachusetts General Hospital said the unusual case highlighted the risk of consuming too much glycyrrhizic acid, which is found in black licorice.
A study of their therapy and clinical trials of other experimental treatments are offering glimmers of hope that paralysis from the disorder can be slowed.
This coronavirus vaccine developed by government researchers and Moderna enabled the animals to quickly clear the infection from their lungs.
Bacteria in the small intestine may drive inflammation that makes it harder for children to get the calories and nutrients they need.
The vaccine, developed by government scientists and Moderna, a biotech company, appeared safe and provoked an immune response in 45 people in a study.
Doctors look to these digital calculators to make treatment decisions, but they can end up denying black patients access to certain specialists, drugs and transplants.
Two major study retractions in one month have left researchers wondering if the peer review process is broken.
The reports, published in two leading journals, were retracted after authors could not verify an enormous database of medical records.
Men were eight times as likely to kill themselves by gunshot than non-owners. Women were 35 times as likely.
Medical records from a little-known company were used in two studies published in major journals. The New England Journal of Medicine has asked to see the data.
Experts demanded verification of data and methods used in a study of drugs to treat Covid-19. The study suggested the drugs might have increased deaths.
Experts are demanding verification of data and methods used in a study of malaria drugs used to treat Covid-19. The study suggested the drugs may have increased deaths.
A clinical trial led to the authorization of the only drug shown to work in Covid-19 patients. But until now, few experts had seen the numbers.
Psychiatrists are confronted with an urgent natural experiment, and the outcome is far from predictable.
Doctors have reported a flurry of cases in Covid-19 patients — including a healthy 27-year-old emergency medical technician in Queens. After a month in the hospital, he is learning to walk again.
The six cats in a laboratory experiment cleared the virus from their bodies on their own. And there are no reports of humans contracting the virus from cats.
People taking widely used medicines did not face higher rates of infection or more severe illness, new research indicates.
A hospital spokesman asked why family members were barred from coronavirus wards when journalists could visit in protective gear. His bosses had no good answer.
As new cases appear on the West Coast, some — including the president — are comparing it to the seasonal flu. Here’s a close look at the differences.