Scientists discover new group of blood types

CNN --

If you don't know your blood type scientists are urging that you find out in case of emergencies -like the need for a blood transfusion.

Now, researchers have found a new group of blood types that you should be aware of in the rare occasion that it might be needed.

The new group is called the ER blood group. The journal Blood, states that there are a total of five ER antigens in the group based on genetic variations. The blood type can cause immune cells to attack mismatched cells.

The ER antigen was found years ago but this study is the first to confirm and describe the different mutations of the antigen.

Experts say that although rare, it could be important for physicians and nurses to pay attention if they are having a hard time diagnosing their patients.