Immunizing the imperfect immune system: Coronavirus disease 2019 vaccination in patients with inborn errors of immunity.

80 Studies evaluating SARS-CoV-2 antibody titers in commercial immunoglobulin products have revealed an increasing trend in titers over time, but with lot-to-lot variability. 81 , 82 A more recent study by Miller et al revealed that the upward trend in neutralizing antibodies has continued in commercially available products in 2021. 83 Thankfully, Delmonte et al did not note any difference in response to COVID-19

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