Convalescent plasma associated with lower COVID-19 death ratesHospitalized COVID-19 patients in a Warsaw, Poland, hospital had a significantly lower mortality rate when treated with convalescent plasma, especially early, according to a study published yesterday in the International Journal of Infectious Diseases.The researchers used propensity score matching to pair a control group with 102 hospitalized COVID patients who received one, two, or three 200-milliliter doses of convalescent plasma starting within 14 days of diagnosis.
The study ran from Apr 24 to Sep 28, 2020. Less than 2% of patients in the whole study cohort did not have any comorbidities.The researchers found that those who received convalescent plasma had a 13.7% mortality