The current study, as well as an earlier study that tested 21 IVIG lots (9 Gamunex C, 10 Gammagard Liquid, 2 other) with a SARS-CoV-2-specific enzyme-linked immunosorbent assay (ELISA; receptor-binding domain or spike protein) that was shown to correlate well with a neutralization test [14] revealed the absence of cross-reactive antibodies against SARS-CoV-2 in IVIG lots produced from prepandemic plasma.