Do you know which blood group is right for everyone?

Signs of human blood, both immune and genetic, by similarity of substances (antibodies) that are foreign to the body can be combined into a specific type, called the blood group. Any person belongs to a certain type of blood that forms at the early stage of the life of the fetus. Molecules that belong to a particular blood group are called antigens. When ingested into an organism that is foreign to the antigenic composition, they cause the formation of antibodies that can be combined into conglomerates.

Blood: what is and what is different from the other?

Transfusion of blood, as an indispensable in medicine procedure, underwent some changes in the 20th century. Scientists have proved that transfusion can not occur from every person. Then the question arises, which blood group is right for everyone, and is there any such? Individual characteristics and belonging to different types led to the fact that blood, when mixed with an alien native organism, was curtailed.

There are 4 types:

1. The first, in which there are no antigens
2. The second contains antigen A
3. The third contains antigen B
4. The fourth has antigens A, B together

I wonder what kind of blood group is right for all people? When mixing donor blood and a recipient belonging to the same group, the new blood cells circulate among the "ones" in the usual regime. And vice versa, incompatibility can be dangerous for human health. Consider the compatibility table:

The table clearly shows which blood group is suitable for all others. It turns out that number 1 can be combined with others and it can be poured to people of all types. Therefore, blood I is very valuable, does not harm the lives of others in the case of transfusion, and its owner is a universal donor.

The latter type (4) is peculiar. It appeared by mixing Indians and Europeans, that is, carriers of Groups 1 and 3. Contains in its composition antigens A and B, and antibodies - no. That is, group 4 blood, compatibility as a donor is possible only with the fourth group, and compatibility as a recipient with people of all existing types.

Rhesus factor

How it manifests itself at the gene level:

• Parents have a rhesus positive - a child can have a Rh factor either (+) or not (-);
• One of the parents has a positive rhesus, the other - a negative one, the child can have both positive and negative;
• The father and mother of the Rh factor are negative, the child will have only negative.

To make a transfusion, you need to establish compatibility in the blood group and rhesus necessarily. When the positive Rhesus is mixed with the negative one, anti-reticular antibodies produced by the donor's organism and remaining in the blood appear in the blood.

In Europe, there are about 15% of the total population with negative rhesus. Such people can make a blood transfusion, which is compatible with them for the group and the Rh factor (meaning negative).

It is worth remembering which blood group is suitable for all people and what donors and recipients need to know before transfusion.