Almost 1000 cases of Covid 19 were reported yesterday but will vaccinations put a stop to a fourth wave as 25-29 years olds register from today?  For more on this increase in Covid cases, we spoke to Professor of Immunovirology at University College Cork, Liam Fanning.

Listen and subscribe to Newstalk Breakfast on Apple Podcasts or Spotify.

Download, listen and subscribe on the Newstalk App.

You can also listen to Newstalk live on newstalk.com or on Alexa, by adding the Newstalk skill and asking: 'Alexa, play Newstalk'.