The health worker who was diagnosed with Ebola after returning to Scotland from Sierra Leone has been identified as Pauline Cafferkey.
She flew to Glasgow via Casablanca and London Heathrow and was taken to the Royal Free Hospital.
Passengers on flights she took to the UK are being traced, but officials say the risk to the public is very low.
Ms Cafferkey was part of a group of up to 50 NHS healthcare workers who returned to the UK at the weekend after volunteering in Sierra Leone.
The patient, who had been working with Save the Children in Sierra Leone, arrived in Glasgow on a British Airways flight on Sunday but was placed in an isolation unit at Gartnavel Hospital on Monday morning after becoming feverish.
Efforts are being made to trace the 71 other passengers who travelled on the same flight from London to Glasgow as Ms Cafferkey.
A British Airways spokesman said: “The safety and security of our customers and crew is always our top priority and the risk to people on board that individual flight is extremely low.”
A telephone helpline has been set up for anyone who was on the BA 1478 flight which left Heathrow Airport on Sunday evening. The number is 08000 858531.
Tom Solomon, director of Liverpool’s Institute of Infection and Global Health, said of the reaction to Ms Cafferkey’s diagnosis: “We’ve had training exercises up and down the country and that’s why you’ve seen that the response has been very calm and very controlled.
“It’s very important that despite this case we have healthcare workers continue to go out to west Africa to help bring this disease under control.”