https://www.selleckchem.com/pr....oducts/guanosine.htm
001) with control plasma having a median (IQR) 50% neutralization titer (NT5 of 128 (116,136) compared to 1334 (1130,11295) and 1324 (1244,1578), for medium anti-NP and high anti-NP CP units, respectively. The neutralizing activity of CP met minimum FDA criteria with neutralizing antibody titers 180 in 100% of randomly selected samples, using a conservative approach that excluded non-specific binding. Plasma from donors screened using an immunochromatographic test for IgG antibody to SARS-CoV-2 NP exhibited neutralizing activity