Common Variable Immunodeficiency Support Group
Common variable immunodeficiency (CVID) is a group of 20-30 primary immunodeficiencies (PIDs) which have a common set of symptoms but with different underlying causes. CVID's underlying causes are different, but the result of these are that the body doesn't produce sufficient antibodies in response to exposure to pathogens.
Added to reference links list: http://www.dailystrength.org/groups/cvid-reference-links (for those of you who aren't members yet, it's just a way to keep important discussions or websites more accessible to us.