Look it up. > According to an archived version of the dictionary's website, Merriam-Webster formerly said a "vaccine" was "a preparation of killed microorganis

Look it up. > According to an archived version of the dictionary's website, Merriam-Webster formerly said a "vaccine" was "a preparation of killed microorganisms, living attenuated organisms, or living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." > The new definition of "vaccine", published in May, reads: "a preparation that is administered – as by injection – to stimulate the body's immune response against a specific infectious agent or disease." https://www.usatoday.com/story/news/factcheck/2021/11/30/fact-check-merriam-webster-changed-vaccine-definition-accuracy/6354415001/ https://www.usatoday.com/story/news/factcheck/2021/11/30/fac... A vaccine that doesn't provide immunity - in other words, not a vaccine, but instead of admitting that, let's change the definition.