New Blood?

Although it is only based on 15 patients in 2 separate Chinese hospitals, there is an encouraging claim that transfusion of plasma from Covid-19 survivors can improve the condition of people who are seriously ill with the condition (https://www.theguardian.com/world/2020/apr/07/plasma-from-coronavirus-survivors-found-to-help-severely-ill-patients). It seems almost certain that antibodies in the transfused plasma, dramatically reduce the viral load and its associated symptoms in vulnerable patients. The preliminary studies also suggest that the immune response to infection does offer considerable protection from reinfection (unless the virus mutates). It might even the possible to generate a drug to treat Covid-19 by using information derived from studying the structure of the antibody.