Trump Expected to Announce Emergency Authorization of COVID-19 Plasma Treatment

President Trump was expected to use a press conference on Sunday to announce emergency use authorization from the Food and Drug Administration for convalescent blood plasma to treat COVID-19.The treatment, which hinges on injecting antibodies from COVID-19 survivors into other patients to boost their body’s defenses against the virus, has been used on at least 97,000 patients. So far, though, the plasma treatment has only produced middling data to support its efficacy.The anticipated...