More than four years since the coronavirus ignited a global pandemic, the virus officially named SARS-CoV-2 keeps evolving — and so does our understanding of how it works. Some of our early ...

For many, Covid is increasingly regarded like the common cold. A scratchy throat and canceled plans bring a bewildering new critique from friends: You shouldn’t have tested. By Emily Baumgaertner ...

When someone close to you tests positive for COVID-19, it’s natural to feel an immediate sense of urgency. The question that often follows is simple but critical: how long should you wait before ...

Think Tank with Steve Adubato is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android smartphones, Amazon Fire TV, Amazon Fire Tablet, Roku, Samsung ...

Dear Dr. Roach: My daughter was recently visiting and tested positive for COVID. Since my last COVID vaccine was eight months ago, I searched for how much protection I still had and understood the ...