Re-designation of IBTO as WHO Collaborating Center for 2017-2021
AB negative: The rarest blood type in Iran

People with AB negative blood type account for nearly one percent of Iran’s total population, which is the rarest blood group in the country, said the spokesman of Iranian Blood Transfusion Organization (IBTO).

“The blood of four percent of the Iranian population is type O negative, three percent A negative, two percent B negative and the remaining one percent AB negative,” Bashir Haji Beigi added.

People with AB-negative blood type account for only o.6 percent of the world’s total population. Among the four main blood groups —  A, B, AB and O — group O positive is the most common in the world.

Those with O negative are named ‘universal donors’ as their blood can be given to patients with different blood groups.

Haji Beigi further said almost 1.6 million Iranians have donated blood across the country since March 2017 and more than 2.7 million blood and blood products were sent to the hospitals during past 9 months.