Which blood type is the least common?
0-
0+
AB-
AB+
AB is the rarest of all AB0 types, and Rh- is always less common than Rh+. In Western Europe, only 1% of the population has AB-. In the Eastern Asia Rh- is very rare: in Japan, only 0,05% of the population has AB-.
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Answers by country
0-
0+
AB-
AB+
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