It is a rare donation, often misunderstood but which saves lives: selective blood donation, plasma donation makes it possible to manufacture many drugs for the treatment of severe burns, autoimmune patients and hemophiliacs. A specific practice that lasts one hour… Thus, collection by apheresis makes it possible to collect between three and four times more plasma than during a traditional blood donation. But this Tuesday, at the Maison du Don in Toulouse, donors responded. Increased motivation due to the plasma needs estimated at 1.4 million liters each year in France, with precise supervision. In Occitania, 2,600 plasma donations would be needed to fill the lack of stocks.