placebo
A harmless substance that resembles a medicine; often used to test the effectiveness of medicines.
Last Updated
October 7, 2025
October 7, 2025
Last updated: October 7, 2025.
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The Importance of Vaccinations
Vaccines are an important part of family and public health. They slow the spread of contagious, dangerous and deadly diseases, and are a key part of preventive health care. Vaccines are available f...