BBC News
By Oliver Wright
image copyrightGetty Images/BBC
It's exactly 12 months since medics were summoned to what became the first confirmed case of Covid-19 in the UK. A year on, the BBC has spoken to the people who found themselves at the centre of the drama.
It was a Wednesday afternoon when a 23-year-old Chinese national called the NHS 111 phone line from his hotel room in York city centre. The University of York student, known in medical journals only as "B", was suffering with a fever, a dry cough and muscle pain. His 50-year-old mother, "A" - who had flown to the UK from Wuhan, in Hubei province, a week earlier - was also feeling unwell with a fever, cough and sore throat.