The Texan nurse diagnosed with Ebola has received a blood transfusion from survivor Dr Kent Brantly.

It is the third time Dr Brantly has donated blood to an Ebola victim after medics discovered he had the same blood type as previous patient Dr Nick Sacra and NBC cameraman Ashoka Mukpo, who is still being treated.

Incredibly, nurse Nina Pham, 26, has also matched with Dr Brantly and on Monday received a transfusion of his blood in a move that doctors believe could save her life.

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Lifeline: Dr Kent Brantly (left), who has been cleared of Ebola, has match blood types with Nina Pham (right) and donated so she can receive a blood transfusion to battle the deadly virus she caught treating a patient

Miss Pham has been in quarantine since Friday after catching the disease from 'patient zero' Thomas Eric Duncan - the man who brought the deadly virus to America.

About 70 staff members at Texas Health Presbyterian Hospital were involved in the care of Mr Duncan after he was hospitalized, including the 26-year-old.

Brantly is believed to have traveled to Texas Health Presbyterian Hospital, where Pham worked, to make the donation on Sunday night.

Miss Pham's condition was described as 'clinically stable' on Tuesday morning. She is believed to be in good spirits and had spoken to her mother via Skype.

A second person who came in contact with the nurse is being monitored for Ebola symptoms in an isolation unit at Texas Presbyterian. He is reportedly Miss Pham's boyfriend according to Dallas News.

The individual works at Alcon in Fort Worth, according to a staff email seen by CBS. MailOnline was awaiting confirmation from the global eye care products company.

Those who have survived Ebola have antibodies in their blood which can help new sufferers beat the disease.

Dr Kent Brantly was flown back from Liberia to the U.S. after contracting Ebola during his missionary work for Samaritan's Purse.

He survived after receiving a dose of the experimental serum Z-Mapp and round-the-clock care at Emory University Hospital in Atlanta, Georgia.

On September 10, Dr Brantly donated blood to a fellow doctor, Dr Rick Sacra, who also contracted Ebola during his work in West Africa and survived the disease.

Last Tuesday, he was on a road trip from Indiana to Texas when he received a call from Ashoka Mukpo's medical center in Nebraska telling him his blood type matched Mukpo’s.

He also offered his blood to Thomas Eric Duncan but their blood types didn't match.

Cured: Dr Nick Sacra was cleared of Ebola after receiving a blood transfusion from Dr Kent Brantly

Being treated: On Tuesday, Dr Brantly pulled over during a road trip to give blood to NBC's Ashoka Mukpo

Within minutes, he stopped off at the Community Blood Center in Kansas City, Missouri, and his donation was flown to Omaha.

Pham was diagnosed after admitting herself to hospital on Friday when her temperature spiked – one of the first symptoms of the deadly virus.

HOW COMMON IS IT FOR TWO PEOPLE TO MATCH BLOOD TYPE? There are four major blood types: A, B, AB, and O. They divide into positive and negative categories. It is not known what blood type the four Ebola patients have in common. The most common blood type in the US is O positive, although ethnic groups normally differ. The majority of African Americans and Hispanics have O positive. Around 37 per cent of Caucasians do too, but 33 per cent have A positive. There is more variety among Asian people. A quarter are listed as B positive, according to the Red Cross, but many also have a high number of Os and As. Advertisement

A blood test confirmed she had the disease and she is now being treated in an isolation ward.

The Emergency Room where she was admitted was cleared and decontaminated.

Nina Pham's uncle confirmed to MailOnline that she is the nurse who has contracted Ebola while treating patient zero Thomas Eric Duncan.

Jason Nguyen told MailOnline: 'Nina has contracted Ebola, she is my niece. Her mother called me on Saturday and told me; 'Nina has caught Ebola.'

'My sister is very upset, we all are. She said she was going up to the hospital in Dallas and I haven't heard from her since. I've tried to call but I can't get through. It's very shocking. I don't know any of the details, only what I hear on the news. It's frightening.'

He added: 'Nina is very hard working. She is always up at the hospital in Dallas.'

A friend added: 'You always hear it on the news, but you don’t expect someone you know so well to have it.'

HazChem teams spent the weekend fumigating her apartment in Dallas while health officials have ordered an investigation into how she contracted the disease.

Tragic: Nina Pham, 26, is fighting for her life after contracting Ebola from Thomas Eric Duncan. Here she is pictured with her beloved King Charles Spaniel clled Bentley who is not expected to be destroyed

Kind-hearted: Raised in Vietnamese family in Fort Worth, Miss Pham graduated from Texas Christian University in 2010 with a Bachelor of Science in Nursing

Her beloved King Charles Spaniel Bentley will not be destroyed and is being quarantined, Dallas mayor Mike Rawlings has assured.

Director of the Centers for Disease Control and Protection (CDC) Dr Thomas Frieden has blamed a 'breach in protocol' of infection control lead Miss Pham to catch Ebola.

Mr Duncan arrived in Texas from Liberia on September 20. He began showing symptoms of Ebola three days after his arrival and was admitted to Texas Presbyterian Hospital on Sunday 28. He died on Wednesday October 8.

Presbyterian's chief clinical officer, Dr Dan Varga, said all staff had followed CDC recommended precautions – 'gown, glove, mask and shield' – while treating Mr Duncan.

And on Monday the CDC said that a critical moment may have come when Miss Pham took off her equipment.

Ebola victims suffer chronic diarrhea and bleeding. But blood and feces from an Ebola patient are considered the most infectious bodily fluids.

Mr Duncan also underwent two surgical procedures in a bid to keep him alive but which are particularly high-risk for transmitting the virus – kidney dialysis and intubation to help him to breathe – due to the spread of blood and saliva.

Nurses' leader Bonnie Castillo has criticized the CDC for blaming the nurse for the spread of the disease.

Ms Castillo, of the National Nurses United, said: 'You don't scapegoat and blame when you have a disease outbreak. We have a system failure. That is what we have to correct.'

In response to the criticism, Frieden clarified his comments to say that he did not mean it was an error on Miss Pham's part that led to the 'breach of protocol.'

Hazard: Protect Environmental workers move disposal barrels to a staging area outside the Dallas apartment of Miss Pham

Clean up: A man in full hazmat clothing walks in front of Pham's home after disinfecting the front porch

Compassion: Tom Ha, who taught Miss Pham bible class said: 'I expect, with the big heart she has, she went beyond what she was supposed to do to help anyone in need'

The CDC said on Monday it has launched a wholesale review of the procedures and equipment used by healthcare workers.

Dr Frieden added that the case 'substantially' changes how medical staff approach the control of the virus, adding that: 'We have to rethink how we address Ebola control, because even a single infection is unacceptable.'

When she got accepted into nursing school she was really excited. Her mom would tell how it's really hard and a bunch of her friends quit doing it because it was so stressful. But she was like, "This is what I want to do" - Friend of Miss Pham

Friends and well-wishers have paid tribute to Miss Pham and praised her as a big-hearted, compassionate nurse dedicated to caring for other.

Raised in Vietnamese family in Fort Worth, she graduated from Texas Christian University in 2010 with a Bachelor of Science in Nursing.

She obtained her nursing license in August 2010 and recently qualified as a critical care nurse.

A friend told the Dallas Morning News: 'When she got accepted into nursing school she was really excited. Her mom would tell how it's really hard and a bunch of her friends quit doing it because it was so stressful. But she was like, "This is what I want to do".'

A devout Christian she regularly attends mass at the Lady of Fatima Church.

Tom Ha, who taught her bible class, told the paper: 'The family is very dedicated and go out of their way to help people. I expect, with the big heart she has, she went beyond what she was supposed to do to help anyone in need.'

Aid: Miss Pham had treated Mr Duncan multiple times after he was diagnosed with the disease and the CDC has claimed that a 'breach of protocol' meant the nurse contracted Ebola. However, nursing leaders attacked the authorities for apparently making Miss Pham a scapegoat

Hung Le, who is president and counselor at Our Lady of Fatima, said parishioners are uniting in prayer for Miss Pham.

He said: 'Our most important concern as a church is to help the family as they are coping with this. As a parish, we are praying for them.'

Ha, who taught the woman in Bible classes, said he and others are translating health information into Vietnamese to help others learn about the illness.

'People are more worried for the family than for themselves, but some have questions because they don’t really understand what it is or how it is transmitted.'

SPREAD OF A DEADLY PLAGUE: HOW WILL AMERICA CONTAIN EBOLA? WHEN IS EBOLA CONTAGIOUS? Only when someone is showing symptoms, which can start with vague symptoms including a fever, flu-like body aches and abdominal pain, and then vomiting and diarrhea. HOW DOES EBOLA SPREAD? Through close contact with a symptomatic person's bodily fluids, such as blood, sweat, vomit, feces, urine, saliva or semen. Those fluids must have an entry point, like a cut or scrape or someone touching the nose, mouth or eyes with contaminated hands, or being splashed. That's why health care workers wear protective gloves and other equipment. The World Health Organization says blood, feces and vomit are the most infectious fluids, while the virus is found in saliva mostly once patients are severely ill and the whole live virus has never been culled from sweat. WHAT ABOUT MORE CASUAL CONTACT? Ebola isn't airborne. Dr. Tom Frieden, director of the Centers for Disease Control and Prevention, has said people don't get exposed by sitting next to someone on the bus. 'This is not like flu. It's not like measles, not like the common cold. It's not as spreadable, it's not as infectious as those conditions,' he added. WHO GETS TESTED WHEN EBOLA IS SUSPECTED? Hospitals with a suspected case call their health department or the CDC to go through a checklist to determine the person's level of risk. Among the questions are whether the person reports a risky contact with a known Ebola patient, how sick they are and whether an alternative diagnosis is more likely. Most initially suspicious cases in the U.S. haven't met the criteria for testing. HOW IS IT CLEANED UP? The CDC says bleach and other hospital disinfectants kill Ebola. Dried virus on surfaces survives only for several hours. Advertisement

The World Health Organization on Monday called the Ebola outbreak 'the most severe, acute health emergency seen in modern times'.

It added that economic disruption can be curbed if people are educated so they don't make any irrational moves to dodge infection.

WHO Director-General Margaret Chan, citing World Bank figures, said 90 per cent of economic costs of any outbreak 'come from irrational and disorganised efforts of the public to avoid infection.'

'We are seeing, right now, how this virus can disrupt economies and societies around the world,' she said, but added that adequately educating the public was a 'good defense strategy' and would allow governments to prevent economic disruptions.

Ebola screening of passengers arriving from three West African countries began at New York's JFK airport on Saturday.

Medical teams equipped with temperature guns and questionnaires are monitoring arrivals from Guinea, Liberia and Sierra Leone – countries at the centre of the Ebola outbreak.