Vaccine definition by the CDC seems to now include Vitamin D
Immunization: The Basics CDC
Definition of Terms
Immunity: Protection from an infectious disease. If you are immune to a disease, you can be exposed to it without becoming infected.
Vaccine: A preparation that is used to stimulate the body’s immune response against diseases. Vaccines are usually administered through needle injections, but some can be administered by mouth or sprayed into the nose.
Vaccination: The act of introducing a vaccine into the body to produce protection from a specific disease.
Immunization: A process by which a person becomes protected against a disease through vaccination. This term is often used interchangeably with vaccination or inoculation.
CDC page last reviewed: September 1, 2021
1: a preparation that is administered (as by injection) to stimulate the body's immune response against a specific infectious agent or disease:
Vitamin D appears to meet the CDC definition of a VACCINE!
VitaminDWiki Immunity category:
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short URL= https://is.gd/cdcvaxd