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The mobile industry’s biggest annual event is called off over fears of attendees spreading the infection. But Samsung, which held its own launch event this week, revealed a new attempt at a phone with a folding screen. Plus, we visit Startup Grind Global to discover the latest ideas looking for Silicon Valley investors’ money. Presented by Rory Cellan-Jones, with Â鶹ԼÅÄ tech reporter Chris Fox, and special guest Rachael Myrow, senior tech editor at Californian broadcaster KQED. Produced by Jat Gill.

(Image: An Asian worker wearing a face-mask stands outside the venue for Mobile World Congress (MWC) in Barcelona after the fair was cancelled, Credit: David Zorrakino/ Europa Press via Getty Images)