Scottish nurse Pauline Cafferkey, the first patient to be diagnosed with the Ebola virus in Britain, has begun experimental treatments that doctors hope will cure her. She is the second patient to be treated in the U.K. after William Wooley, who was treated in 2014.

Doctors and staff at the Royal Free hospital are currently treating Cafferkey, 39, for the Ebola virus. She has begun experimental treatment with blood plasma, according to Dr. Michael Jacobs, reports Reuters. The plasma treatment uses blood from Ebola survivors from Europe.

"We have decided to treat her with two things, the first of which is convalescent plasma, that means a product taken from the blood of another patient who has recovered from Ebola," Jacobs said.

"The second thing we're giving her is an antiviral drug, it's an experimental antiviral drug," Jacobs said. "She's very well aware it's an experimental treatment."

He clarified that the drug ZMapp, used to cure Wooley would not be used.

"There is none left in the world," Jacobs said, according to the Daily Record and Sunday Mail. However, Cafferkey appears to be in relatively good condition and is entering a "crucial few days" that may see her condition worsen.

"She is sitting up and talking. She is able to read. She's been eating a bit, drinking, and she's been in communication with her family, which has been really nice," Jacobs said. "She's as well as we can hope for at this stage. She's had the treatment, it's gone very smoothly, no side effects at all."

However, Jacobs warned neither of the treatments had been proved to work, reports the Independent: "We don't know what the best treatment strategies are."

Cafferkey became infected with the virus in Sierra Leone, where she was part of a group of 30 NHS medical staff sent to help battle the epidemic. She traveled from there to Glasgow, via London, passing various health screenings.

Her arrival and subsequent diagnoses has led to a review of the U.K.'s Ebola screening procedures, reports the BBC. Chief Medical Officer Dame Sally Davies said the correct protocols had been followed, but they will be reassessed nonetheless.

Save the Children, the charity for which Cafferkey had volunteered, will also launch an investigation into how she became infected, according to the Guardian. The group's humanitarian director, Michael von Bertele, said she contracted the virus outside the treatment center.

"I'm sure she did [contract it] outside the treatment centre," he said. "I can't imagine that anyone following the procedures and protocols in the treatment center would have contracted it."