Pauline Cafferkey, a public health nurse at Blantyre Health Centre in South Lanarkshire, is receiving specialist treatment via a quarantine tent at the Royal Free Hospital in north London.
Chief medical officer Professor Dame Sally Davies said the experimental drug ZMapp, which was used to treat Will Pooley, the first UK citizen to contract the disease, is “not available at the moment”.
Among options of alternative treatment she said: “We do have available a small amount of convalescent plasma. Plasma is the liquid of blood and convalescent is the recovery phase.
“Will Pooley gave a donation of the plasma and the theory is as we fight off infections we make anti-bodies and if you harvest the plasma you got a source of antibodies that you can put in to someone and you’d expect it to work.
“But the cornerstone of treatment remains fluid and electrolyte treatment.”
However, she said the course of treatment would be discussed privately between the 39-year-old patient and her clinician.
The 39-year-old was initially placed in isolation at a Glasgow hospital early yesterday after feeling feverish, before being transferred south on a military-style plane.
The healthcare worker had flown from Sierra Leone via Morocco to Heathrow Airport where she was considered a high risk because of the nature of her work but screened without concern.