Two promising therapies among weapons dispatched against COVID-19 Plasma and stem cell (SC) therapies are two of the emerging star treatments being used in the fight against the SARS-CoV-2 virus. Against COVID-19, they're considered stop-gap measures, while the world awaits a vaccine. Both, however, have proven effective against severe cases infections caused by the novel coronavirus, which has already killed over 502,000 and infected 10.1 million. Plasma and SC therapies have similarities, as well as obvious differences. Q: What are their similarities? Both plasma and stem cell therapies rely on rejuvenating damaged body tissue. They both form part of what's described as “regenerative medicine”, a fast-emerging branch of medical science involving techniques that help restore the function of tissues or organs. Being “regenerative” treatments (or therapies), they encourage your body to use its natural abilities to heal injuries or other types of tissue damage or infl