Editor’s note — A version of this story first published in 2021. It was a harrowing scene. A 92-year-old man was barely breathing and had extremely low oxygen levels, and emergency medical technicians ...

The coronavirus pandemic has given wildlife more room to play in urban areas. As billions of people across the planet have retreated indoors to combat the spread of the coronavirus, wildlife roams ...

Five years later, the memories, though faded, linger. We recall how life lurched to a halt with a cascade of cancellations and postponement. Though our streets once again throng with people, we ...

Five years ago, reports of a new and mysterious virus emanating from China gripped the globe in terror and uncertainty. As infections spread across continents ...

It has been five years since covid-19 emerged, triggering a global pandemic that has had lasting consequences on societies, economies and people’s health. Long covid: What we now know about its causes ...

As the world marks five years since the pandemic began, a look at some of the moving moments that showed the grace and mercy of God in action. Pope Francis speaks in an empty St. Peter’s Square during ...

An illustrative figure highlighting the impact of early detection via smartwatch on viral spread. The image shows how the model can capture both symptomatic (A and C) and asymptomatic cases (B and D).