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Which is the rarest blood group in the world?

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A blood type few have heard of is called Bombay blood group. It is one of the world’s rarest blood groups and people who carry this rare blood type can accept blood only from another Bombay blood type individual, and not from anyone who is O, A, B or AB type. It is estimated that about 1 in 10, 000 Indians and 1 per 1,000,000 individuals in Europe. The h/h blood group, also known as Oh or the Bombay blood group was discovered in 1952 in Bombay, India by Dr.Y.M.Bhende. read more

One of the rarest blood types in the world is Rh-null, which lacks any antigens in the Rh system. There are only 9 active donors in the community of rare blood donors that have Rh-null blood. Rh-null, which is the rarest blood group, is considered a “universal blood” for anyone with a rare blood type within the Rh system. read more

Bombay blood group is the rarest blood group. First found in Bombay (Mumbai) in India, hence called Bombay blood group. It is observed to occur in 1 out of every 250,000 people except in parts of India where the incidence has been observed to be as much as 1 in every 7,600. read more

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