Last modified on Sun 21 Feb 2021 11.32 EST
On the evening of 29 January last year, a 23-year-old Chinese student at the University of York called NHS 111 because he was feeling unwell. The man was staying in a York hotel and was suffering symptoms of Covid-19 â a fever, a dry cough and muscle pain. Along with his parents, who were visiting from Wuhan, where the virus is thought to have originated, the man was picked up by Yorkshire Ambulance Service paramedics wearing hazmat suits and taken to a secure ward at the regionâs infectious diseases unit at Castle Hill Hospital, Hull, to be tested.