The questionnaire below is designed to provide the PI community with statistical data in order to help formulate plans to address Primary Immunodeficiencies. The JMF has existing collaborations with several governmental health agencies including the CDC and NIH, as well as government health departments in Europe, South America and Canada. We hope to compile as much information as possible about PI so that we can most effectively promote awareness of PI diseases and help to direct the research agenda, then researchers can focus their energies on where they are needed most to provide improved treatments, and possibly even cures.