The Jeffrey Modell Foundation (JMF), a non-profit organization, was established by Vicki and Fred Modell in memory of their son, Jeffrey, who died at the age of 15 from complications of Primary Immunodeficiency (PI). The Foundation's mission is dedicated to early and precise diagnosis, meaningful treatments and ultimately, cures for PI. JMF focuses it's efforts in research, physician education, patient support, public awareness and advocacy.