short note on vaccines
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A vaccine is a biological preparation that provides active acquired immunity to a particular disease. A vaccine typically contains an agent that resembles a disease-causing microorganism and is often made from weakened or killed forms of the microbe, its toxins, or one of its surface proteins. The agent stimulates the body's immune systemto recognize the agent as a threat, destroy it, and to further recognize and destroy any of the microorganisms associated with that agent that it may encounter in the future. Vaccines can be prophylactic (example: to prevent or ameliorate the effects of a future infection by a natural or "wild" pathogen), or therapeutic
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Vaccines or vaccination is the process of administering weakened or dead pathogens to a healthy person or animal, with the intent of conferring immunity against a targeted form of a related disease agent.It succeeded and is distinct from inoculation.In common speech, 'vaccination' and 'immunization' generally have the same colloquial meaning.Vaccination efforts have been met with some resistance since its inception.Early success and compulsion brought widespread acceptance and mass vaccination campaigns were undertaken which have greatly reduced the incidence of many diseases in many areas.The eradication of smallpox, which was last seen in a natural case in 1977, is considered the most spectacular success of vaccination.Some people assert that childhood vaccination plays a role in autoimmune disease and autism though large-scale scientific studies have not shown a link.Some major contemporary research in vaccination focuses on development of vaccinations for diseases including HIV and malaria.
Vaccines or vaccination is the process of administering weakened or dead pathogens to a healthy person or animal, with the intent of conferring immunity against a targeted form of a related disease agent.It succeeded and is distinct from inoculation.In common speech, 'vaccination' and 'immunization' generally have the same colloquial meaning.Vaccination efforts have been met with some resistance since its inception.Early success and compulsion brought widespread acceptance and mass vaccination campaigns were undertaken which have greatly reduced the incidence of many diseases in many areas.The eradication of smallpox, which was last seen in a natural case in 1977, is considered the most spectacular success of vaccination.Some people assert that childhood vaccination plays a role in autoimmune disease and autism though large-scale scientific studies have not shown a link.Some major contemporary research in vaccination focuses on development of vaccinations for diseases including HIV and malaria.
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