AWhat changed
Landsteiner distinguished patterns of blood agglutination between people, helping explain why blood from different donors cannot always be mixed safely. The work established a foundation for blood-group compatibility testing.
Scientific scope
Landsteiner distinguished patterns of blood agglutination between people, helping explain why blood from different donors cannot always be mixed safely. The work established a foundation for blood-group compatibility testing. Scope limitation: The 1901 contribution did not include every later blood group, the full modern ABO nomenclature or all safeguards of transfusion medicine. Later discoveries and clinical implementation require their own attribution.
Evidence
Assessment uses the catalogue-linked source evidence for the stated contribution. The 1901 contribution did not include every later blood group, the full modern ABO nomenclature or all safeguards of transfusion medicine. Later discoveries and clinical implementation require their own attribution.
Contributors
- Karl Landsteiner · SCIENCE: Named source contributor; exact labor shares are not measured.
- Landsteiner: Individual differences in human blood — Nobel lecture
- Nobel archive: Landsteiner biography
Provisional WRS assessment, edition 2026-10-16.1. Independent expert calibration is pending. This grade does not certify correctness or assign ownership.
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