Blood donors could become a thing of the past if a team of scientists in the UK get their way.
Scottish researchers have managed to successfully create artificial blood in a lab using embryonic stem cells.
The discovery could see an unlimited supply of infection-free blood for use in emergency transfusions.
Scientists hope to develop the blood into the O-negative type, which can use transfused into patients without the fear of issue rejection.
While the destruction of embryos raises ethical issues, scientists say that just one embryo could meet Britain's needs.
ITN