![person studying](/sites/default/files/styles/large/public/understandingpi.jpg?itok=Zo3vrl11)
Learn about health insurance and how to obtain the care a person with primary immunodeficiency (PI) needs. This chapter is taken from the IDF Patient & Family Handbook for Primary Immunodeficiency Diseases, 6th Edition, copyright ©2019 by Immune Deficiency Foundation, USA.