IB Biology: C3.2-Vaccination and Immunization

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What is vaccination?

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Vaccination is the introduction of a harmless form or components of a pathogen into the body to trigger the lymphocytes to make specific antibodies to fight possible infection.

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What is a vaccine?

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A vaccine is a preparation containing antigens which is used to stimulate an immune response artificially.

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How does vaccination provide immunity?

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Vaccination stimulates the production of specific antibodies and memory cells against a specific antigen, providing immunity.

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How were vaccines traditionally created?

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Traditionally, vaccines were created from inactivated viruses and bacteria which stimulate an immune response without causing the disease.

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How are vaccines made due to advances in research?

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Vaccines are now made from DNA/RNA that code for specific pathogenic antigens that stimulate immunity to a specific pathogen without causing the disease.