It’s a part of a trial whether or not it may be used to combat Covid-19.
Fourteen new donation centres are opening in England over the subsequent few months together with in locations comparable to Lancaster and Leeds.
But what’s plasma within the blood? How may blood plasma donations be used to deal with people who find themselves severely sick with coronavirus?
BBC well being correspondent Laura Foster explains
Video by Mattea Bubablo, Laura Foster and Terry Saunders.