Prof. Dolores Cahill with Comedian Aidan Killian stranded abroad

LIVE NOW... After spending the past few months studying in Amsterdam and working on new material, Irish stand-up comedian Aidan Killian was denied access to his flight home recently as he hadn't taken a PCR test. He managed to get a boat to France but can't get any further. He has arranged a chat with Irish immunologist Prof. Dolores Cahill.