Antibodies 1 Antibodies, Viral 1 B lymphocyte activation 1 COVID-19 1 Durability 1 Germinal center 1 Humans 1 IgA 1 IgG 1 IgM 1 Immunoglobulin A 1 Immunoglobulin G 1 Immunoglobulin M 1 Plasma cells 1 Review 1 SARS-CoV-2 1 Severe acute respiratory syndrome coronavirus 2 1 acute phase response 1 antibody response 1 antibody therapy antibody titer 1 convalescent plasma therapy 1 coronavirus disease 2019 1 disease course 1 human 1 immunoglobulin A 1 immunoglobulin G 1 immunoglobulin M 1 neutralizing antibody 1 therapy effect 1