ANCA associated vasculitis 1 Agammaglobulinemia Aged 1 Antibodies, Neutralizing 1 Antibodies, Viral 1 Article 1 Autoimmune diseases 1 B cells 1 B lymphocyte 1 B-Lymphocytes 1 COVID-19 1 COVID-19 Vaccines 1 Female 1 Humans 1 Immunogenicity, Vaccine 1 Immunoglobulin G 1 Immunoglobulin M 1 Male 1 Middle Aged 1 Prospective Studies 1 Rheumatic Diseases 1 Rituximab 1 SARS-CoV-2 1 SARS-CoV-2 antibody 1 SARS-CoV-2 vaccine 1 Vaccination 1 ad 26cov 2scovid 19 1 ad26.cov2.s vaccine 1 adult 1 agammaglobulinemia 1