O negative blood group is definitely rare, about 5 to 7% people of this world have the blood type; but AB negative group is rarest, not more than 1% people have the blood type in the world.
https://facileessays.com/wp-content/uploads/2020/08/logoFE.png00Lucyhttps://facileessays.com/wp-content/uploads/2020/08/logoFE.pngLucy2022-09-12 11:50:502022-09-12 11:50:50Is O Negative a rare blood type?