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The Year of the Zebra

What is this initiative?

2023 is the 40th anniversary of the Orphan Drug Act which gave hope to the hundreds of millions of people around the world who are directly affected by rare disorders (also known as “zebras,” because they are less common than horses). Elsevier Health is launching an ambitious initiative called “The Year of the Zebra” to educate millions of current and future healthcare professionals, caregivers, researchers, patients, family members, and the general public about these zebras. We are inviting an exclusive group of organizations and individuals to “adopt” one or more zebras by contributing to the development and distribution of highly engaging and impactful educational content about those rare disorders that will collectively reach millions of people around the world. 

Rare Disease Day

Tuesday, February 28th is Rare Disease Day, when the world comes together to show support for the 400+ million people inflicted by 7,000+ rare diseases globally and those who care for them! It is also the day that Osmosis from Elsevier launches our global Year of the Zebraeducation initiative to drive more awareness of and support for rare diseases in the healthcare community. 

The first Rare Disease Day was celebrated on February 29th, 2008 - the rarest day given that it only occurs every Leap Year. Since then, Rare Disease Day has been celebrated on the last day of February. This year it falls on Tuesday, February 28th.

Importantly, that first Rare Disease Day back in 2008 marked the 25th anniversary of the Orphan Drug Act, which revolutionized the way treatments and cures are developed for rare diseases. Today, fifteen years later, the Year of the Zebra is a renewed commitment to achieving an inclusive healthcare system, to educating as many people as possible, and to leveraging Osmosis’ far-reaching network of followers and subscribers to ultimately drive research, action, and improve patient outcomes.

Moving forward, each week, we will continue to feature one new video highlighting a rare disease or “zebra”. That video will also be featured on the new Elsevier Rare Diseases Healthcare Hub, a global hub, available to all, that will feature the very latest research affecting patients and featuring the latest research, developments, and education materials for the rare disease community. The Year of the Zebra initiative will also see the launch of Elsevier’s new journal dedicated to the topic – Rare. Open Research in Rare Diseases.

Please help us spread the word about this worthy and important initiative in the year ahead.

Introducing Rare: Open Access Journal

Rare is a new Gold Open Access journal that publishes international research on direct clinical and psychosocial care, diagnosis, pharmacology, public policies or ethics. Rare includes rigorously peer-reviewed articles on research that improves the well-being and quality of life of patients with rare diseases - as well as undiagnosed, unsolved disorders - and their families.

Through Rare, researchers, healthcare professionals, policy makers, and the rare disease community have a multidisciplinary open access scientific journal that covers all aspects of living with these disorders.

Editor in Chief: Prof. Dr. Wendy van Zelst-Stams, Radboud University Medical Centre in Nijmegen, The Netherlands

This week's Zebra is brought to you by

The Zebra of the Week is: Infantile Neuroaxonal Dystrophy

Electrical wiring is an integral part of any machine’s circuitry. It is usually a complex system that allows for the transfer of information, energy, and more. Any damage to the individual wires will affect the correct functioning of the whole. In the human body, this wiring is best represented by the nervous system and the nerves can be likened to the individual wires whose malfunctioning will have repercussions on everyday life. One example of such malfunctioning happens in infantile neuroaxonal dystrophy, this week’s zebra.

Infantile neuroaxonal dystrophy (INAD) is an ultra-rare, inherited degenerative disorder of the nervous system. It is caused by changes in the PLA2G6 gene, which contains the body’s instruction for making the enzyme phospholipase A2, whose function is to break down certain lipids. Impaired breakdown of lipids is thought to result in the excess accumulation of cell membranes in the nerves, resulting in the symptoms of INAD. 


These symptoms usually start to appear between the ages of 3 months and 3 years. A common pattern is the slowing of children’s development, followed by loss of acquired skills (such as the ability to sit or stand), and progression of symptoms such as loss of muscle control, speech problems, difficulty swallowing, and more depending on the subtype of the disease.

INAD is estimated to occur in 1 to 2 children per million globally.

To learn more about the diagnosis and treatment of infantile neuroaxonal dystrophy, watch the dedicated Osmosis video on YouTube and Osmosis.org

Meet Amelia

Up until she was 2 years old, Amelia was growing up inconspicuously, babbling, crawling, and showing little signs of what is to come. Then, the progress she had made until that point started to unravel and she progressively regressed. It was a long journey before she was diagnosed with INAD and became the first documented INAD patient in Singapore. Watch Amelia’s sister Amanda as she recounts the memories shared and how she wants to make the rest of the days with her count.

Adopt a Zebra

We are inviting an exclusive group of organizations and individuals to "adopt" one or more zebras by contributing to the development and distribution of highly engaging and impactful educational content about those rare disorders that will collectively reach millions of people around the world.

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Fill out the form below to sign up for the Year of the Zebra weekly newsletter to learn about a new rare disease every week.

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Sign Up for the Year of the Zebra Newsletter

Fill out the form below to sign up for the Year of the Zebra weekly newsletter to learn about a new rare disease every week.

Successful submission!

Thank you for signing up for the Year of the Zebra weekly newsletter! By signing up you are helping us to achieve our ambitious goal of educating millions about rare diseases to help accelerate the diagnosis and treatment.

Printable Year of the Zebra Coloring Sheets!