scientific principle behind vaccination and immunization ​

Answers 2

Answer:

A vaccine works by training the immune system to recognize and combat pathogens, either viruses or bacteria. To do this, certain molecules from the pathogen must be introduced into the body to trigger an immune response. These molecules are called antigens, and they are present on all viruses and bacteria.

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Answer:

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Explanation:

the scientific principle behind vaccination and immunization is developing the defense mechanism of the body by exposing it to dead or weak bacteria which enables it to produce antibodies

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