First Photos: That moment when US Ebola victim, Thomas Eric Duncan landed at Dallas airport

Standing in the arrivals lounge of Dallas-Fort Worth International Airport this is the moment Ebola victim Thomas Eric Duncan unwittingly brought the deadly virus to the USA.

Pictured moments after he completed his journey from disease-ravaged Liberia, two weeks ago, the 42-year-old smiles, as he is greeted warmly by relatives.

Holding a family member close he calls others on his cell phone to tell them he will shortly be arriving at their home in Dallas.

It follows a journey he was only able to make after he allegedly lied on an airport questionnaire in Liberia about not having any contact with a person infected with the deadly disease.

Dressed in a traditional African costume and with her hair-styled especially for the happy occasion the relative appears pleased to see him.

Looking healthy Mr Duncan shows no signs of the potentially fatal Ebola virus that struck him down just days after he arrived in the USA.

Today the 42-year-old is fighting for his life at the Texas Health Presbyterian Hospital in Dallas after doctors confirmed his medical condition had dramatically altered from serious to critical.

However the relative, 'Miss X', appears to have initially been in denial about the risk to her health after her extended family and friends contacted her following Mr Duncan's hospital admission last week.

A friend told MailOnline: 'She is the one who went to pick Thomas Eric Duncan up from the airport.

'They greeted each other, they hugged and held each other, which is only normal. They were pleased to see each other.

'But now everyone has been asking her about what has happened.

'And she has replied; "my Daddy does not have Ebola."

'She said; "Everyone should stop calling me because my dad does not have Ebola."

she appeared to be reluctant to do so.

The friend said: 'She was meant to go for a medical check-up because she was one of the people who had been with him [Thomas Duncan], but she did not.'

It is unclear whether the relative – who is in a stable relationship and has three young children – has since been to see a doctor.

Mr Duncan arrived in Texas on September 20th after passing through two of the busiest airports in the USA - at Dallas-Fort Worth International Airport, and Dulles International Airport in Washington DC.

The Liberian national had earlier passed through Brussels International in Belgium on a flight from the African state's capital Monrovia.

Authorities have claimed he posed no danger to his fellow travelers or anyone who later boarded those planes because he was not displacing any symptoms of the Ebola virus at the time and was therefore not contagious.