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.
There is also Patient Services and NORD.
Lastly, check out www.primaryimmune.org as they have many resources:
http://primaryimmune.org/patients-and-families/patient-assistance-and-insurance-resources
I believe IDF even has insurance people so help you along so you may want to give them a ring. Good luck.
I understand the worry. You let me know if I can be of further help :)
> bonus treatment
Buy 3, get 1 free! hehe.