Primary immunodeficiency diseases (PI) occur in patients in which part of the immune system is missing or functions improperly. PI is often present in the form of common infections and is sometimes misdiagnosed.
Read more about testing, diagnosing and treating PI.
You are accessing a Web site maintained by a third party over whom CSL Behring has no control. CSL Behring is not responsible for, and accepts no liability for, information contained in any third-party Web site.
Do you want to continue?