22nd-29th April 2021

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 will embrace 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 2021 promotes:

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

Find all World PI Week general materials here.

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Recent News

  • Webinar: Let’s mark the start of World PI Week 2021 together!

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  • World PI Week 2021 teaser videos now out!

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  • Celebrating Rare Disease Day 2021

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  • Introducing World PI Week 2021

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  • New opinion piece by World PI Week experts

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  • Share your story #MyPIstory

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See all World PI Week updates