Six-year-old Danny Nickerson has an inoperable brain tumor known as diffuse intrinsic pontine glioma.
The Massachusetts boy was diagnosed last October. The brain tumor is one of the most chemotherapy-resistant cancers, and he has been forced to stop going to kindergarten, according to ABC News.
Nickerson recently made it known that all he wanted for his birthday was lots of birthday cards. His wish has been granted.
The family's mailbox has been flooded with cards and packages since Danny's story got out. His mother says that he has received cards from as far away as Switzerland, Germany, Norway and Sweden.
According to a post on Danny's Facebook page, he had received more than 8,500 cards and 900 packages as of July 23. The family had to rent a truck to bring everything home.
July 25 is Danny's birthday.