“Disease X,” according to the World Health Organization, “represents the knowledge that a serious international epidemic could be caused by a pathogen currently unknown to cause human disease.” Indeed ...

I became a science writer — well, at least a part-time one — because I lived through SARS. I was a reporter for TIME’s Hong Kong office 10 years ago, mostly covering books, films and whichever exotic ...

Internal dissent within the mostly volunteer disease-news network known as ProMED—which alerted the world to the earliest cases of COVID, Middle East Respiratory Syndrome (MERS), and SARS—has broken ...

A new vaccine designed to provide broad protection against COVID-19 and related coronaviruses has begun human trials. The ...

Scientists have found a potential cause of multisystem inflammatory syndrome in children (MIS-C) linked to SARS-CoV-2 (COVID) infections. St. Jude Children's Research Hospital scientists have ...

Editor's note: Find the latest long COVID news and guidance in Medscape's Long COVID Resource Center. Since the COVID-19 pandemic started more than 3 years ago, the longer-lasting effects of ...

To most people on the planet, the Covid-19 pandemic is over. But for many scientists who have been tracking the largest global infectious disease event in the era of molecular biology, there is still ...