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Schedule

Mon, 01 Sep, 2025 at 06:00 am

UTC+03:00

Location

Idoro, | Addis Ababa, AA

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Blood Type O Overview
The O blood group is one of the four main blood types in the ABO blood group system, which also includes A, B, and AB. Blood type is determined by the presence or absence of antigens on the surface of red blood cells and antibodies in the plasma.
Types of O Blood
There are two types:
O-positive (O+)
O-negative (O−)
The main difference lies in the Rh factor:
O+ has the Rh antigen.
O− does not have the Rh antigen.
Characteristics of O Blood Type
1. Antigens and Antibodies
Red Blood Cells (RBCs):
No A or B antigens on the surface.
Plasma:
Contains both anti-A and anti-B antibodies.
2. Compatibility
O-negative is known as the universal donor for red blood cells because it lacks A, B, and Rh antigens. It can be given to any blood type in emergencies.
O-positive can be given to any Rh-positive person (A+, B+, AB+, O+).
3. Receiving Blood
People with type O blood can only receive blood from other type O donors.
O+ can receive from O+ and O−
O− can only receive from O−
Medical Importance
O− blood is crucial in emergency and trauma situations when there isn’t time to type the patient’s blood.
People with O-type blood are sometimes more prone to ulcers and have different responses to infections and stress due to genetics and immune system variations.
O Blood and Organ Donation
In organ transplants, blood type compatibility is also crucial. O-type donors are generally more versatile as donors but more limited as recipients.
Distribution
O+ is the most common blood type globally and especially in countries like the U.S.
O− is rarer but extremely important due to its universal donor status.
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Where is it happening?

Idoro,, Addis Ababa, Ethiopia

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