The company said tests of its vaccine would start up again in Britain while remaining suspended in the U.S. and other countries. Pfizer, a competitor, announced an expansion of its trials.
Wildfire smoke spreads misery, including health problems, far beyond fire zones. We have key facts and tips.
Dozens of research groups around the world are playing the long game, convinced that their experimental vaccines will be cheaper and more powerful than the ones leading the race today.
Warming soils in the tropics could cause microbes to release carbon dioxide from storage. One scientist called the finding “another example of why we need to worry more.”
Many Covid-19 patients may be dying from their immune response to the virus, not from the virus itself. Can science figure out how to save them?
We usually think of insects as meals for vertebrates such as frogs. But arthropods may turn the tables more often than you think.
How much freedom should front-line clinicians have in treating Covid-19 patients with unproven drugs? The question opened up a civil war in some hospitals.
Trace quantities of isotopes hint at the true origin of a kind of glass that was highly prized in the Roman Empire.
The research does not prove that infected children are contagious, but it should influence the debate about reopening schools, some experts said.
Scientists say such tests could be available in a few years, speeding research for treatments and providing a diagnosis for dementia patients who want to know if they have Alzheimer’s disease.
Astrobiologists have used Mars jars for decades. Many didn’t know about the controversial Air Force scientist who started them.
Just weeks after resolving shortages in swabs, researchers are struggling to find the chemicals and plastic pieces they need to carry out coronavirus tests in the lab — leading to long waiting times.