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Vaccine hesitancy: Definition, scope and determinants
The SAGE Working Group on Vaccine Hesitancy concluded that vaccine hesitancy refers to delay in acceptance or refusal of vaccination despite availability of vaccination services. Vaccine hesitancy is complex and context specific, varying across time, place and vaccines. It is influenced by factors s …
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vaccine | Definition, Types, History, & Facts | Britannica
vaccine, suspension of weakened, killed, or fragmented microorganisms or toxins or other biological preparation, such as those consisting of antibodies, lymphocytes, or messenger RNA (mRNA), that is administered primarily to prevent disease. A vaccine can confer active immunity against a specific harmful agent by stimulating the immune system to attack the agent. Once …
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Vaccine-associated enhanced disease: Case definition and …
This definition assumes previously antigen-naïve vaccine recipients, which can be assessed by determining seronegative status prior to vaccination, when feasible. The need for documentation of seronegativity prior to vaccination, which can be done retrospectively, is particularly relevant in Phase II-III clinical trials.
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Vaccine Definition & Meaning | Dictionary.com
Vaccine definition, any preventive preparation used to stimulate the body’s immune response against a specific disease, using either messenger RNA or killed or weakened bacteria or viruses to prepare the body to recognize a disease and produce antibodies. See more.
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Fact check: Merriam-Webster changed 'vaccine' definition for …
Nov 30, 2021 · Merriam-Webster revised its "vaccine" definition to replace "immunity" with "immune response." The change also addresses the new technology of mRNA vaccines in light of the COVID-19 pandemic.
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Why did CDC change definition for ‘vaccine’? Agency explains | Miami Herald
Sep 09, 2021 · Before the change, the definition for “vaccination” read, “the act of introducing a vaccine into the body to produce immunity to a specific disease.” Now, …
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Recombinant vaccine | definition of recombinant vaccine by …
recombinant vaccine: a suspension of attenuated viruses or killed microorganisms developed through recombinant DNA techniques.
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VACCINE | meaning in the Cambridge English Dictionary
vaccine definition: 1. a substance that is put into the body of a person or animal to protect them from a disease by…. Learn more.
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Creutzfeldt-Jakob disease - Symptoms and causes - Mayo Clinic
Jan 05, 2021 · CJD captured public attention in the 1990s when some people in the United Kingdom developed a form of the disease — variant CJD (vCJD) — after eating meat from diseased cattle. However, "classic" Creutzfeldt-Jakob disease hasn't been linked to contaminated beef. All types of CJD are serious, but very rare. Worldwide, about one to two …
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