Timing of convalescent plasma administration and 28-day mortality for COVID-19 pneumonia

Convalescent plasma administration (CPA) is widely used to treat Covid-19, but its effectiveness remains controversial. Here we report the results of an Expanded Access Program of CPA in the province of Buenos Aires, Argentina. We evaluated the relationship between the timing of CPA and 28-day mortality in 4719 hospitalized patients with COVID-19 pneumonia. Early (≤3 days from admission) CPA was…

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