DEAR RACIST, YOUR CHILD NEEDS A PINT of BLOOD

Bourbon

In Yo Face!
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While no one is suggesting forced segregation of blood bags, it’s now scientifically established that blood can be racially or ethnically specific.

Most people know about the eight major blood groups: A, B, AB and O, each of which can be positive or negative (the Rh factor). These are determined by genes, and what group you are depends on what combination of proteins and sugars — antigens — are on the outside of your red blood cells. The International Society of Blood Transfusion lists 360 known antigens, but the combinations are infinitely more. Many have no bearing on routine blood transfusion, though all were discovered because they caused a problem with compatibility.

A successful blood transfusion relies on sameness. If incoming blood has an antigen that you lack, your body can react badly to it. In extremely rare cases, the reaction can be fatal; and even if not, it can tax the immune system in people who are already weakened by their condition. Also, you will make an antibody, a sort of immune storm trooper, to better recognize the same antigen next time. Patients who need regular blood transfusions — those who have sickle cell disease, thalassemia or leukemia, for example — may face an ever decreasing pool of suitable blood because they keep creating antibodies.

Yet it is a difficult message: that our blood is different, red and white cells both. When it comes to finding stem cells for bone marrow transplants, the search has to be equally discriminatory. This time the issue is HLA, the human leukocyte antigens present in white blood cells.

“The reason why ethnicity comes into the picture,” says Dr. Abeer Madbouly, a senior scientist at Be the Match, a program run by the National Marrow Donor Program, the largest stem cell donor registry in the world, “is that HLA encodes the immune system, and the immune system goes through particular conditions based on where you are.” Depending on the threat, each population will develop particular sets of HLA types. In a diverse population like that of the United States, finding a matched donor becomes more challenging for a patient with a mixed ethnic background.



https://www.nytimes.com/2019/05/14/well/live/blood-type-race-racial.html










STUPIDFUCK MORON...AS USUAL...DO YOU EVER KNOW WHAT THE FUCK YOU ARE BLATHERING ABOUT....EVER?.
 
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