Information Media

1)Blood Type O-

O Negative is known as the universal blood type. When this blood is donated, anyone can receive it. This makes it the most sought-after blood.

O Negative Facts:

Only 7% of the world's population carries O- blood.

While anyone can receive O-, people with O- blood can only receive O- blood.

2)Blood Type O+ 

While O- is the least common blood type, O+ is the most common. The group of O blood is the oldest blood on Earth and dates back to 40,000 BC. An interesting fact is that 47% of African Americans have O+ blood.