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Table 2 Number of vaccinated and unvaccinated donors with low or high neutralizing antibody titers

From: Simple prediction of COVID-19 convalescent plasma units with high levels of neutralization antibodies

 

Low NAb titer (< 1:160)

High NAb titer (≥ 1:160)

Unvaccinated

766 (71.8%)

301 (28.2%)

Vaccinated

13 (5.5%)

222 (94.5%)

  1. Notes: Vaccinated donors were more likely to have a high NT titer than unvaccinated CCP donors (p < 0.001)