'If you want to live, squeeze my hand'

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When Tom Patterson caught a superbug infection in 2015, he thought his life was over. The antibiotics had stopped working, he was in a coma and doctors had given up hope. But his wife - scientist Steffanie Strathdee - went on an international medical quest to save him. Tom and Steffanie have written a book about their experience - 'The Perfect Predator: A scientist's race to save her husband from a deadly superbug'. Presenter: Jonny Dymond Producer: Asya Fouks Picture: Tom Patterson and Steffanie Strathdee holding pictures of bacteria and phages Credit: USCD Health