Related Experiment Video
Updated: May 10, 2026

08:33
A Protocol for Collecting and Staining Hemocytes from the Yellow Fever Mosquito Aedes aegypti
Published on: May 16, 2011
Clara Maass, yellow fever and human experimentation
1Departments of Pediatrics and History and Philosophy of Medicine, Kansas University Medical Center, 3901 Rainbow Boulevard, Kansas City, KS 66160, USA.
Military Medicine
|June 13, 2013
Summary
Yellow fever experiments in Cuba, led by Walter Reed, used informed consent but resulted in deaths, including nurse Clara Maass. These tragic outcomes halted further human trials.
Area of Science:
- Medical History
- Infectious Diseases
- Epidemiology
Background:
- Historical yellow fever research in Cuba.
- Walter Reed's experiments and mosquito-vector hypothesis.
- Ethical considerations in human subject research.
Discussion:
- The role of informed consent in early 20th-century medical research.
- Public reaction to the deaths of research subjects.
- The impact of experimental outcomes on scientific practices.
Key Insights:
- Clara Maass's death highlighted ethical issues in yellow fever research.
- Walter Reed's work validated the mosquito transmission of yellow fever.
- Human experimentation cessation due to public outcry.
Outlook:
- Lessons learned for modern clinical trial ethics.
- The historical context of infectious disease research.
- Preventive strategies against mosquito-borne illnesses.
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