Blood Group Serology and "Race": Looking Back to Move Forward

Area of Science:

• Population genetics
• Anthropology
• Medical history

Background:

• The discovery of ABO blood group antigens in the early 20th century quickly led to their use in defining racial groups.
• This practice, termed seroanthropology, involved collecting extensive blood group frequency data across diverse populations.
• However, seroanthropology was also historically misused for racist ideologies and classifications.

Purpose of the Study:

• To examine the historical trajectory of seroanthropology, from its origins to its eventual role in refuting biological race concepts.
• To highlight the ethical implications and potential harms associated with the historical application of seroanthropology.
• To guide healthcare providers toward adopting race-conscious transfusion practices.

Main Methods:

• Historical analysis of scientific literature and data collection practices related to blood group frequencies and racial classification.
• Review of population genetic studies that utilized seroanthropological data.
• Examination of the ethical considerations and societal impact of seroanthropology.

Main Results:

• Seroanthropology provided substantial data on blood group antigen frequencies across populations.
• Population geneticists leveraged this data to demonstrate that race is not a valid biological construct.
• The legacy of seroanthropology carries risks of perpetuating race-based medicine if not critically understood.

Conclusions:

• Understanding the history of seroanthropology is crucial for contemporary medical practice.
• Healthcare providers should move from race-based to race-conscious approaches in transfusion medicine.
• This shift acknowledges the social constructs of race while ensuring equitable and effective patient care.