• A companion for the TK2d journey

    The information, insights and support you need every step of the way

    Find what you are looking for no matter where you or your child are on the TK2d journey. Get started today.

    TAKE THE PATIENT JOURNEY
  • Navigating the journey

    How to find a mitochondrial disease support group

    A mitochondrial disease support group can connect you with others on a similar journey. Here are tips on how to find one.

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  • The latest research

    AAV gene therapy advances offer hope for TK2d

    AAV gene therapy is showing strong and growing potential to treat TK2d and related mitochondrial diseases by restoring key cellular functions.

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TK2d Basics

New to TK2d? Start here to find out about symptoms, diagnosis, treatment and more.

What is Thymidine Kinase 2 Deficiency (TK2d)?
TK2d basics