Skip to main content

What is the rarest blood type on earth?

What is the most uncommon blood type? Rhnull, the rarest blood type is found in only 44 people worldwide, it lacks all of the 61 possible antigens in the Rh system.

Rarest blood type on earth?
Rarest blood type on earth?

You’re probably aware that you could have A, B, AB or O blood, and that your blood can be positive or negative. But that’s not the whole story.

Rhnull is the rarest blood type that was first detected in an Australian aborigine, in 1961. This rare blood type is essentially a genetic mutation that causes Rh antigen absence. Red blood cells lacking Rh / RhAG proteins have structural abnormalities and cell membrane defects that can result in hemolytic anemia.

Individuals with Rhnull blood type share a similarity with those of type O: both are universal donors, but can only receive a transfusion from the same blood type. 

In the British town of Filton, the International Blood Group Reference Laboratory (IBGRL) has a database with carriers of the rare blood type to ensure that no carrier who needs a donation is left without it. 

The initiative has a serious drawback: Rhnull carriers reside in countries as far apart as Japan, Brazil, Ireland, and the United States, making it difficult to move a bag if needed urgently. In case someone with Rh null has to undergo a scheduled surgery, blood is extracted beforehand and stored for 45 days in case it is necessary.

What are the most common blood types in the world?

As for the most common types, A, B, AB and O, with their positive and negative Rh variants, the most frequent in the world are A+, O+ and B+, but the distribution varies greatly by country. 

For example, in the United States, 37.4% of the population is O-positive, 35.7% is A-positive and 8.5% is B-positive. These proportions are similar in European countries. On the other hand, B+ is very abundant in countries such as Saudi Arabia (33%), India (31%), Japan (20%) or Taiwan (24%). 

The O negative blood type, a universal donor, has more presence in Europe, where it ranges from 6% in France, 7% in Germany, and 9% in Spain. In Asia, on the other hand, it is very rare. For example, only 2% in India, and 0.15% in Japan.

Your blood type is define by the antigens present in your blood, 2019.
Your blood type is define by the antigens present in your blood.

The way blood types are defined

Antigens are anything that can elicit a response from your body’s self-defense system, though your immune system normally ignores the ones that belong to you. And you can find antigens on cells throughout your body, with different cells having different combinations of antigens.


Popular posts from this blog

What are the major characteristics of philosophy

7 characteristics of philosophy: a doctrine that encompasses a great deal of logical and methodological studies that seek to answer questions of interest to human beings such as existence, truth or knowledge. Characteristics of philosophy A great deal of humanist and scientific knowledge has emerged from philosophy, which has been of vital importance for the development of humanity and for providing answers to an infinite number of existentialist questions and doubts, among others. The main characteristics of the philosophy are presented below. Universality Philosophy encompasses a large number of branches of knowledge in order to build a general and common idea of the truth of the universe that can be understood by all people. For this reason, philosophy makes use of various areas of study i

Call of Duty Mobile: how to connect the controller? (PS4 and Xbox)

Along with the Zombies mode came the expected support for controllers for Call of Duty Mobile. How to connect the controller? (PS4 and Xbox). How to connect a controller to your phone to have a more satisfying experience with Call of Duty Mobile.  We explain how to perform the process on iOS and Android. Call of Duty Mobile Season 2 update: It's finally here, support for the PlayStation 4 and Xbox One controller! On-Call of Duty Mobile. How does it work Support included for the PlayStation 4 DualShock 4 and the official Xbox One controller. The 1st generation versions of the official PS4 controllers are not supported. Support for the third party controllers, not included. Controls will only work in games and not in menus. They must enable the controller settings in the game before synchronizing their wireless controller. Matchmaking Players will only paired with other players who use controllers. However, if you are in a group and one of the memb

Incredible Facts About The Planets In Our Solar System | Video

Facts About Our Solar System's Planets Dive into the mysteries of our solar system, explore the fascinating wonders, and learn intriguing facts about the planets that will spark your curiosity and imagination. From Mercury, the closest to the Sun, to Neptune, the farthest away, each planet in our Milky Way is unique with its own special characteristics ( Source ). The mysteries of our solar system are truly mind-blowing! As humans, our inherent curiosity pushes us to explore the wondrous space beyond Earth. So let's hop on a cosmic journey and discover the mystery and wonder of our solar system by learning interesting facts about the planets!  Join us as we explore these wonders of space: Solar system for kids Discover the Mystery and Wonder: Unlock the Intriguing Facts of Our Solar System's Planets Mercury: A Rocky Marvel Mercury is the smallest and innermost planet in our solar system, but its unique characteristics m