Introduction
What is this test?
Common variable immunodeficiency (CVID) is the most frequent PID1 characterized by hypogammaglobulinemia and impaired antibody productions
Vaccine response impairment is impairment of specific antibody responses, which may be as a consequence of PID and SID immunodeficiencies which renders individuals susceptible to recurrent, severe infections (mainly by encapsulated bacteria and rare opportunistic pathogens).