Rare Disease Day is a fantastic celebration of the strength, unity, diversity and progress of the global rare disease community. It takes place annually on the last day of February - usually the 28th, but during leap years, it's the 29th - the rarest day of all!
Hundreds of events took place around the world to mark the day. Find out more in Rare Diseases International's review here. Why not plan your own event for Rare Disease Day 2020?!