5 years ago today, a COVID booster was approved to protect people most likely to catch the virus

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

Beta Variant

The World Health Organization and the Centers for Disease Control and Prevention have both designated beta as a “variant of ...

What we know about the new Delta COVID strain now found in Australia

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

Original COVID-19 vaccination did not stop immune system from fighting variants, finds study

Prior COVID-19 vaccination did not stop the immune system from mounting a protective response to the delta and omicron strains, though new mutation-specific antibody production dipped slightly, ...
Sky

COVID-19: Delta infections may produce similar virus levels regardless of vaccination status, early analysis suggests

Coronavirus levels in people with the Delta variant may be similar regardless of whether or not they've been vaccinated - and it could have implications for infectiousness, early analysis suggests.