What do you know about Sickle Cell disease? It is a disease that affects millions of people worldwide and is especially common among people who come from and whose ancestors come from Central and South America, Africa, India and parts of the Middle East. If you have a general idea or even no idea at all, take our quiz and test your knowledge.

资料来源：

cdc.gov/ncbddd/sicklecell/facts.html

sicklecelldisease.org/sickle-cell-health-and-disease/types/