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Posted: 2025-04-26 03:56:08 UTC
This article contains some claims that remain unverified. While much of the content may be accurate, exercise care when relying on this information.
This article contains some claims that remain unverified. While much of the content may be accurate, exercise care when relying on this information.
Status
Last Updated
2025-04-26 03:56:52 UTC
Verified By
Rollup News
Before 1900, human blood was considered the same. Karl Landsteiner discovered different blood types (A, B, O, and AB) and their compatibility, revolutionizing blood transfusions.
Discovery of different blood types (A, B, O, AB)
Understanding blood compatibility for transfusions
Karl Landsteiner's contribution to medical science
Early misconceptions about blood
Failed blood transfusions due to incompatibility
Lack of understanding of blood components