Dr Davies is a consultant neurologist at Chelsea and Westminster Hospital, the Royal Marsden Hospital, and Imperial College Healthcare NHS Trust in London, UK. His subspecialty and research interest is neurological infection. He trained in neurology at the National Hospital for Neurology and Neurosurgery, St George’s Hospital (Atkinson Morley’s) and St Mary’s Hospital in London. Prior to his consultant appointment he was awarded a 12-month Personal Travel Fellowship, which he spent studying HIV neurology at St Vincent’s Hospital, Sydney, Australia. Since 2016 he has also been neurologist to the National Centre for Human Retrovirology at St Mary’s Hospital, which specialises in management of HTLV infection.