A female front-line healthcare worker who returned from Sierra Leone last night has been diagnosed with Ebola and is receiving treatment in Glasgow.

The patient flew back via Casablanca and London Heathrow before arriving at Glasgow Airport at around 11.30pm on a British Airways flight, BA1478.

She has had contact with only one other person, but all passengers on the flights from Africa to London, and the 71 flying from London to Glasgow, are being traced as a precautionary measure.

The health worker was admitted to hospital early this morning after telling NHS staff she was feeling unwell and was placed into isolation at 7.50am before becoming the first person to be diagnosed with Ebola on UK soil. She has not been in an A&E unit or any other part of the Gartnavel complex.

The government and health authorities refused to disclose any details about the nurse, but a spokeswoman for Save the Children has confirmed that she is an NHS nurse who worked at its Ebola hospital in Kerry Town, near the capital Freetown. She added that the charity believes the patient flew to Sierra Leone on 23 November.

A government statement said NHS Scotland infectious diseases procedures had been put into effect and the patient was receiving treatment in the specialist Brownlee Unit for Infectious Diseases on the Gartnavel Hospital campus, Glasgow.

Her condition is stable and she is not giving any clinical concern.

A Scottish Government spokesman said: "All possible contacts with the patient are now being investigated and anyone deemed to be at risk will be contacted and closely monitored. However, having been diagnosed in the very early stages of the illness, the risk to others is considered extremely low."

First Minister Nicola Sturgeon has chaired a meeting of the Scottish Government Resilience Committee (SGoRR) to ensure all necessary steps are being taken and has also spoken to Prime Minister David Cameron.

According to UK and Scottish protocol for anyone diagnosed with Ebola, the patient will be transferred to the high level isolation unit in the Royal Free hospital, London, as soon as possible. This is where the facilities, staff and systems are in place to ensure the best quality and safest care.

While public health experts have emphasised that the risks are negligible, a telephone helpline has been set up for anyone who was on the Heathrow to Glasgow flight last night. The number is 08000 858531.

Ms Sturgeon said: "Our first thoughts at this time must be with the patient diagnosed with Ebola and their friends and family. I wish them a speedy recovery.

"Scotland has been preparing for this possibility from the beginning of the outbreak in west Africa and I am confident that we are well prepared.

"We have the robust procedures in place to identify cases rapidly. Our health service also has the expertise and facilities to ensure that confirmed Ebola cases such as this are contained and isolated effectively minimising any potential spread of the disease.

"Scotland's NHS has proved it is well able to cope with infectious diseases in the past, such as swine flu, and I am confident we will be able to respond effectively again."

A British Airways spokesman said: "We are working closely with the health authorities in England and Scotland and will offer assistance with any information they require.

"Customers who flew from London Heathrow to Glasgow on BA1478 which departed at 2100 on Sunday December 28 and have concerns should contact the special number 08000 858531 set up by the Scottish Government.

"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 spokesman for the Royal Free Hospital said it was not yet clear when the patient would be transferred to London.

"The Royal Free London can confirm that it is expecting to receive a patient who has tested positive for Ebola.

"The patient will be treated in the high level isolation unit (HLIU)," he said.

The unit is run by a dedicated team of doctors and laboratory staff and access is restricted to specially trained medical staff.

A specially designed tent is set up around the patient's bed so the infection can be contained while they are treated.

Downing Street said David Cameron phoned Ms Sturgeon regarding the case and made clear that the UK Government stood ready to assist "in any way possible", a No 10 spokesman said.

"The Prime Minister and the First Minister discussed the UK's robust and practised response procedures in place and how these were being strictly followed," the spokesman said.

"They agreed that both governments would remain in close touch and ensure everything possible was done to support the patient and, although the risk to the general population remained low, all measures would be taken to protect public health."