Preliminary study of 300+ COVID-19 patients suggests convalescent plasma therapy effective

A preliminary analysis of an ongoing study of more than 300 COVID-19 patients treated with convalescent plasma therapy at Houston Methodist suggests the treatment is safe and effective. The results, published in The American Journal of Pathology, represent one of the first peer-reviewed publications in the country assessing efficacy of convalescent plasma and offer valuable scientific evidence that transfusing critically ill COVID-19 patients with high antibody plasma early in their illness reduced the mortality rate.