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Neutralizing capacity (NT50) for control and convalescent plasma. NT50 for control and convalescent plasma (medium, high anti‐NP) of CP. Each dot represents the calculated NT50 value for an individual plasma sample. The dashed lines at 1:80 correspond with the minimum titer recommended by the FDA for CP, and with the “optimally greater than 1:320” titer stated by FDA in the initial (March 24, 2020) guidance document [Color figure can be viewed at wileyonlinelibrary.com]
