The federal government will again be distributing free COVID-19 tests to U.S. households. Here's when and how to order them ...

A research group has developed a new COVID-19 testing system using Janus particles -- microparticles with two sides possessing distinctive molecular properties. These particles are engineered to bind ...

We have been jolted back to the dark days of 2020 this week, as the former chief nurses of England, Wales, Scotland and ...

Penguins are to go back on parade in Edinburgh for the first time since the Covid-19 pandemic. Since 1949, when they were let ...

The first big update to U.S. methadone regulations in 20 years is poised to expand access to the life-saving drug starting ...