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[[Image:Vaccine.jpg|right|thumb|350px|[[Avian flu]] vaccine development]]

[[Image:Vaccine.jpg|right|thumb|350px|[[Avian flu]] vaccine development]]

A '''vaccine''' is a pharmaceutical product containing an [[antigen]] designed to stimulate the production of antibodies against a particular disease or diseases.<ref>https://www.sciencenewsforstudents.org/article/explainer-what-vaccine</ref> There are numerous reasons why many people prefer to avoid taking vaccines, but laws and other rules (often pushed into place by those who stand to make significant profit) frequently mandate them.  The Pfizer and Moderna [[COVID]] vaccines use an mRNA to trick the recipient's cells into generating a SARS-Cov-2 spike protein, in order to create incomplete immunity to the disease.  This differs from how most traditional vaccines inject an inactivated virus itself.<ref>https://www.menshealth.com/health/a35589366/mrna-vs-traditional-vaccine/</ref> Although most developed vaccines are intended to directly prevent the target disease, the [[COVID-19]] vaccine works differently.

A '''vaccine''' is a pharmaceutical product containing an [[antigen]] designed to stimulate the production of antibodies against a particular disease or diseases.<ref>https://www.sciencenewsforstudents.org/article/explainer-what-vaccine</ref> There are numerous reasons why many people prefer to avoid taking vaccines, but laws and other rules (often pushed into place by those who stand to make significant profit) frequently mandate them.  The Pfizer and Moderna [[COVID]] vaccines use an mRNA to trick the recipient's cells into generating a SARS-Cov-2 spike protein, in order to create incomplete immunity to the disease.  This differs from how most traditional vaccines inject an inactivated virus itself.<ref>https://www.menshealth.com/health/a35589366/mrna-vs-traditional-vaccine/</ref> Although most developed vaccines are intended to directly prevent the target disease, the [[COVID-19]] vaccine works differently. Immunization has enabled the global eradication of smallpox ... the elimination of poliomyelitis from the Western hemisphere … and major reductions in the incidence of other vaccine-preventable diseases in the United States.<ref> [https://www.cdc.gov/mmwr/pdf/rr/rr4512.pdf CDC].</ref>

 

Vaccine manufacturers admit to rare cases of severe harms caused by their products, in their packaging information.

Vaccine manufacturers admit to rare cases of severe harms caused by their products, in their packaging information.

==Mechanism==

==Mechanism==

If the body produces an antibody against a particular disease or toxin, it can identify the infection early on and the [[immune system]] can destroy it. Vaccines work by exposing the body to a form of the disease in such a way that it is much less likely to cause illness but still allows antibodies to develop. This confers a level of immunity to the person or animal vaccinated.<ref>http://www.howstuffworks.com/immune-system7.htm How stuff works: Antibodies</ref>

If the body produces an antibody against a particular disease or toxin, it can identify the infection early on and the [[immune system]] can destroy it. Vaccines work by exposing the body to a form of the disease in such a way that it is much less likely to cause illness but still allows antibodies to develop. This confers a level of immunity to the person or animal vaccinated.<ref>http://www.howstuffworks.com/immune-system7.htm How stuff works: Antibodies</ref>