How many people in the UK have had coronavirus? Adam, Laura, Chris and Fergus chat everything we do and don’t know about antibody tests, immunity, and the rate of infection with Professor Tom Solomon from The University of Liverpool. And as the UK looks to expand on its ‘Test Track and Trace’ policy, we hear about the Seoul club night that sparked a search for 32,000 people.Also on the programme, the singer Sophie Ellis-Bextor tells us about the home discos she’s been hosting every Friday night, live from her kitchen.Producers: Frankie Tobi, Harriet Noble, Seren Jones, Natalie Ktena Editor: Dino Sofos

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“What did the council decide on item 42?” — answered with the speaker and the moment.