What are Controlled Human Infection Studies (CHIS)?
Controlled Human Infection Studies (CHIS) are scientific studies in which healthy human volunteers are deliberately exposed to a specific pathogen or disease-causing agent in a controlled environment. These studies are conducted to better understand the disease, its progression, immune response, and potential treatments or vaccines.
Why are activists raising concerns about CHIS?
A group of activists, including an advocate, independent journalist, researcher, and others, have expressed concern...
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