Blood Types World Map

O blood is the most common blood type in the world and while it is not quite as universal as o blood o can be given to all rh positive types but not the rh negative types it is still the most used blood according to the american red cross.

Blood types world map. He produced a series of eight world maps each showing the prevalence of a blood type a a b b ab ab o and o in various countries around the world. Blood groups are categorized by antibodies and substances contained or lacking in the blood. Scandinavians have a high probability of carrying the a blood type while those indigenous to central asia are more likely to carry the b blood type. Additionally rh positive blood types are much more common than rh negative blood types which is another reason why o blood is always needed and important.

This list concerns blood type distribution between countries and regions blood type also called a blood group is a classification of blood based on the presence and absence of antibodies and inherited antigenic substances on the surface of red blood cells rbcs. Blood types vary depending on the geographical region. My colleague robert allison has a knack for finding fascinating data. Note that it is highest in c entral asia and lowest among the indigenous peoples of the americas and australia.

Abo blood type system this can be seen with the global frequency patterns of the type b blood allele shown in the map below. Health professionals categorize blood types based on whether or not the blood contains specific antigens and antibodies. If you are o the o is your abo type and the is your rh type. Last week he did it again by locating data about how blood types and rh factors vary among countries.