Differing strains of the coronavirus continue to appear around the world and a new COVID-19 variant, the so-called "Delta" variant, has health experts concerned. The variant, otherwise known as B.1617 ...

As the highly contagious Delta variant tore through healthcare systems, officials approved a third vaccine for those most ...

If you show any of these signs, doctors say to get tested ASAP.

LAS VEGAS, NEVADA -- A California couple says they were fully vaccinated, but still contracted COVID-19 while on vacation as experts say breakthrough cases are possible, especially with the delta ...

In a real-world setting, analysis showed that risk of infection and severe illness was significantly lower for those who were vaccinated against COVID-19, and cardiac conditions did not increase.

Drugmaker Moderna’s CEO set off fresh alarm bells in financial markets on Tuesday after he warned that COVID-19 vaccines were ...

Delta Air Lines will pay tens of millions of dollars to settle a class-action lawsuit from customers who said the airline wouldn’t refund their canceled flights in the beginning of the Covid-19 ...

Brett Sutton says it’s of ‘significant concern’ and it has international authorities worried - but what is the dreaded new ...