Blood group type may affect susceptibility to COVID-19 respiratory failure

[wnylib]

53. Blood types are not the same as

ethnic or racial identity. So, yes, a lot of people of African descent have type O. But so do most Europeans and Asians. Blood types are inherited on an individual, not group or ethnic or racial basis. So, the child of a white, European American with type O and an African American of type A would have type A because A is dominant over O.

The chances of anyone from any place having type O are greater than having type A or B simply because O is the most common type in the world. Type B is the least common. Anybody from anywhere can have any type. It is not a racially linked heredity.

The exception is Native Americans. The original small group that became the ancestors of later Native Americans apparently had type O. The Americas were so isolated from the rest of the world for so long that other blood types did not exist among them before Columbus, except for a few small pockets of Type A. The type A might have come from people of North America's Arctic region, where they would have mingled with other Arctic people from northern Asia and Europe, e.g. the Lapps. Some Arctic people of North America moved farther south in the distant past with some of them having type
A.