O negative

I'm the lucky one ( or unlucky one), who has this type of blood running in my weins.
Apparently, only 7 procent of world's population have this type blood, which makes it the most preferred blood type for the tranfusions, as type O negative red blood cells can be given to any blood type. However, an O negative recipient can receive blood only from a donor who is O negative. 
Please donate if you can ;)