Rare Disease Day Quiz 2021
![quiz-3644414_640 (1)](https://blogs.biomedcentral.com/on-medicine/wp-content/uploads/sites/6/2021/02/quiz-3644414_640-1-200x140.png)
The last day of February marks Rare Disease Day, an initiative that helps increase education, discussion, and improve access to treatment options. Orphanet Journal of Rare Diseases has rounded up a few interesting facts and research about rare diseases. Find out how much you know, and share your results with us @OJrarediseases and use the hash tag #RareDiseaseDay.