How blood plasma from recovered patients could help treat the new coronavirus
When it comes to creating treatments for Covid-19, the disease caused by the novel coronavirus, the first line of defense may be a century-old technology: purified blood plasma.
Medical literature published during the Spanish flu pandemic of 1918 includes case reports describing how transfusions of blood products obtained from survivors may have contributed to a 50% reduction in death among severely ill patients. In 1934, a measles outbreak at a Pennsylvania boarding school was halted when serum harvested from the first infected student was used to treat 62 fellow students. Only three of the 62 students developed measles — all mild cases.
