Our immune system fights off invaders. But how exactly does it do that? What advantage do vaccinations provide – and what about the new corona variants? Biologist Christine Falk explains how we find out if we have a good immune system.
It’s a cold, wet September day that feels like November already. And the conversation begins, very appropriately, with the interviewee coughing.
FALK: Excuse me, unfortunately I’m fighting a cold right now.