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World PI Week Quiz

Primary immunodeficiency (PI) means a person’s immune system has trouble fighting infections.

World PI Week logo and photo of children

Early diagnosis and treatment can help people who have primary immunodeficiency (PI) avoid serious infections, live fuller lives and achieve their personal goals. During World PI Week (April 22-29), take this quiz to test your knowledge of this serious condition.

You can learn more about primary immunodeficiencies by visiting the Immune Deficiency Foundation (IDF) and the International Patient Organisation for Primary Immunodeficiencies (IPOPI). If you experience infections that are frequent, recurring and unusual, the IDF recommends that you ask your doctor about primary immunodeficiency.