22nd-29th April 2024

Millions of people live with a compromised immune system worldwide due to a genetic defect. Together, we can make a difference in their lives by stimulating early diagnosis and access to care.

World PI Week 2021 embraced three main topics:

Raising awareness of defects of the immune system such as PID takes on an even greater significance amid COVID-19.


Join the campaign, help make a difference! Strike a Y, show support to the PID cause!

World PI Week promotes:

  • Solidarity, togetherness & collaboration
  • Awareness & education
  • Investment, political attention & action
  • Research & innovation

Find all World PI Week general materials here.

The World PI Week 2021 outcome report is available here.

Recent News

  • Translations available for 2024 Campaign Materials

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  • World PI Week 2024 Campaign Materials Released!

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  • Unveiling the Theme for World PI Week 2024

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  • World PI Week Expands Reach with LinkedIn Launch

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  • World PI Week expresses deepest condolences on the passing of Vicki Modell

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  • World PI Week 2023 highlights: the campaign report is now out!

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See all World PI Week updates