SAN FRANCISCO -- As California becomes the first U.S. state to adopt an "endemic" approach to COVID-19, we take a closer look at what becoming "endemic" means and if virus levels have truly ...

Jonathan Levin, the newly appointed president of Stanford, seen here speaking at a forum at the university's business school in April, when he was the school's dean. Was his hope fulfilled that a ...

Dr. Chan is a molecular biologist at the Broad Institute of M.I.T. and Harvard, and a co-author of “Viral: The Search for the Origin of Covid-19.” This article has been updated to reflect news ...

People who don't trust scientists. Nations that don't trust each other. And a lab in a suitcase. These are some of the ways the world has changed – for worse and for better – in the wake of the ...

“They’re coming in and they don’t know how to play.” “I had some kids who went on to kindergarten who still did not know a triangle.” “I can’t tell you the number of families who say their kids are ...