The immune system produces to each antigen corresponding antibody, resulting in an antigen (as that may make the bacteria, viruses, or even affected by any disease cells of the body) is blocked and is no longer for the body nor a threat. For the formation of this complex "antigen-antibody" and are vaccinated. If your body gets exactly the microbes against that vaccination was done, they immediately die, under pressure from developed antibodies. Scientists have found that if human blood serum, which was vaccinated and blood which has already formed antibodies to enter another man, these antibodies will "work" and in his body. All of the above applies, first of all, not only to man but also to other mammals, and secondly - not only to microbes: an antigen (ie, foreign body) for individual may be any substance that is not in his own body.
A series of experiments in which human blood is mixed with the blood serum of the rabbit. Certain molecules, which were at surface of erythrocytes (red blood cells), human, for the rabbit were the antigens, so the immune system immediately begins to produce a rabbit against these antigens antibody that circulates in the serum blood, red blood cells glued alien. Further details can be found at Hemiplegic Cerebral Palsy, an internet resource. Next to this rabbit serum was added the blood of another person, and since the serum already changed the desired antibodies, the newly received red blood cells would also have to stick together. However, this response was observed not in every case, from which it can be concluded that erythrocytes of different people with something different. Austrian scientist Karl Landsteiner conducted several experiments on themselves and its employees. These experiments were similar to those that previously did with the rabbit. Again and again, studied the reaction between serum and red blood cells.
And again, in some cases the bonding occurred erythrocytes (agglutination), while in others - no. These experiments have allowed to make Karl Landsteiner concluded: "Serum blood of healthy people causes agglutination of red blood cells not only animals but also of erythrocytes blood of another person. " This means that the red blood cells belonging to another person, can be just as alien as the red cells of the animal. In a normal person's blood contains antibodies against red blood cells related to a different type than its own. Moreover, these antibodies did not have the body to produce, as they were originally found in blood serum. Experiments have shown that, firstly, the red blood cells are not agglutinated serum of the same person, and secondly, a certain type of red blood cells (blood group is 0) is not agglutinated by any serum, and thirdly, if two people the same blood group, the red blood cells are not the same serum agglutinated the other. As a result of these experiments established the presence of three blood groups (which are designated as group 0, A and B), and a year later opened a fourth blood group, serum which does not stick no red blood cells, while its own red blood cells stick together with blood serum of any other group. This group was designated AB. On the surface of red blood cells there are many antigens, but the first were discovered antigens A and B. Depending on the presence of absence of these two antigens and the blood of people have divided into four groups, known as blood groups of ABO.
A series of experiments in which human blood is mixed with the blood serum of the rabbit. Certain molecules, which were at surface of erythrocytes (red blood cells), human, for the rabbit were the antigens, so the immune system immediately begins to produce a rabbit against these antigens antibody that circulates in the serum blood, red blood cells glued alien. Further details can be found at Hemiplegic Cerebral Palsy, an internet resource. Next to this rabbit serum was added the blood of another person, and since the serum already changed the desired antibodies, the newly received red blood cells would also have to stick together. However, this response was observed not in every case, from which it can be concluded that erythrocytes of different people with something different. Austrian scientist Karl Landsteiner conducted several experiments on themselves and its employees. These experiments were similar to those that previously did with the rabbit. Again and again, studied the reaction between serum and red blood cells.
And again, in some cases the bonding occurred erythrocytes (agglutination), while in others - no. These experiments have allowed to make Karl Landsteiner concluded: "Serum blood of healthy people causes agglutination of red blood cells not only animals but also of erythrocytes blood of another person. " This means that the red blood cells belonging to another person, can be just as alien as the red cells of the animal. In a normal person's blood contains antibodies against red blood cells related to a different type than its own. Moreover, these antibodies did not have the body to produce, as they were originally found in blood serum. Experiments have shown that, firstly, the red blood cells are not agglutinated serum of the same person, and secondly, a certain type of red blood cells (blood group is 0) is not agglutinated by any serum, and thirdly, if two people the same blood group, the red blood cells are not the same serum agglutinated the other. As a result of these experiments established the presence of three blood groups (which are designated as group 0, A and B), and a year later opened a fourth blood group, serum which does not stick no red blood cells, while its own red blood cells stick together with blood serum of any other group. This group was designated AB. On the surface of red blood cells there are many antigens, but the first were discovered antigens A and B. Depending on the presence of absence of these two antigens and the blood of people have divided into four groups, known as blood groups of ABO.
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