Counting sheep: Louis Pasteur and the first registered public vaccine trial

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• This public vaccine trial established foundational safety standards for immunization.
• Key evidence includes Pasteur's work on pathogens, which led to effective vaccine development and public confidence.
• Assessment of historical records shows how Pasteur's trial set a precedent for future public health initiatives.
• Understanding this trial may enable modern vaccine development by refining safety protocols based on historical insights.