Through desperate efforts to save their lives, scientists now better understand how to treat and prevent the disease — and millions of others may survive.

A group of medical experts advising the National Institutes of Health says there is not enough evidence to recommend for or against the use of plasma therapy for patients hospitalized with COVID-19.

After expressing frustration at the slow pace of approval for coronavirus treatments, President Donald Trump announced Sunday the emergency authorization of convalescent plasma for COVID-19 patients.

Mayo Clinic researchers reported a strong hint that blood plasma from COVID-19 survivors helps other patients recover, but it’s not proof and some experts worry if, amid clamor for the treatment, they’ll ever get a clear answer.

Researchers are studying the use of convalescent plasma therapy — and it’s already showing positive results at Weiss Memorial Hospital in Uptown.

Patients who have recovered from the coronavirus can help those struggling to fight the disease, as part of a clinical trial just launched by University of Chicago Medicine – the first trial of its kind in the area.