"Vaccine" definition change
Provide me the definitions of vaccine has changed from 2010 till present, with references
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“vaccine definition changes 2010 to present”
VerifyThis — Why CDC changed its vaccine definition | verifythis.com
WHAS11 — Verify: The CDC did change its definition of vaccine back in Sept. 2021 | whas11.com
The definition of "vaccine" has evolved significantly over the past decade, reflecting advancements in medical science and a deeper understanding of how vaccines work. Here's a summary of the changes in key definitions from major sources:
Merriam-Webster:
2010 Definition: A preparation of killed microorganisms, living attenuated organisms, or living fully virulent organisms that is administered to produce or artificially increase immunity to a particular disease.
Current Definition (2021 Revision): A preparation that is administered (as by injection) to stimulate the body's immune response against a specific infectious agent or disease. This revision reflects the inclusion of newer technologies like mRNA vaccines and provides a broader explanation linking to the concept of an "immune response" rather than simply "immunity" (Poynter) (Check Your Fact).
Centers for Disease Control and Prevention (CDC):
Pre-September 2021 Definition: A product that stimulates a person's immune system to produce immunity to a specific disease, protecting the person from that disease.
Post-September 2021 Definition: A preparation that is used to stimulate the body's immune response against diseases. This change was made to better encompass the mechanisms of newer vaccines, such as those using mRNA technology, which may not provide immunity in the traditional sense but still offer significant protection (WHAS11).
These updates were driven by the need to more accurately describe how vaccines function, especially with the introduction of mRNA vaccines for COVID-19, which work differently than traditional vaccines. The adjustments in definitions underscore the importance of clear communication in public health, particularly in light of evolving scientific knowledge and public health strategies (PolitiFact).
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This evolution in definitions illustrates the growing understanding and technological advancements in vaccine development, particularly highlighted by the global response to the COVID-19 pandemic.