Blood type

Rarity: Ultra rare

A topic known all over the world: only a few thousand cards.

Rarity follows how well known the article is: its views on the French and English Wikipedia over a year, and the number of languages it exists in.

At a glance

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Notion

Domain

Science and technology

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What Wikipedia says

A blood type (also known as a blood group) is a classification of blood based on the presence and absence of antibodies and inherited antigenic substances on the surface of red blood cells (RBCs). These antigens may be proteins, carbohydrates, glycoproteins, or glycolipids, depending on the blood group.

Excerpt from the Wikipedia article “Blood type”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Iggydarsa at Turkish Wikipedia, Public domain, via Wikimedia Commons.