what does a specific vaccine do for the person who receives the treatment
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Well, when when a person receives a vaccine the persons' body's immune system uses a system - artificially acquired immunity - to train their B-cells to recognise the foreign proteins of a specific pathogen, a bacteria or virus in order to enable the body to fight off the pathogen if the person should ever be exposed to it again.
basically a vaccine introduces the pathogenic antigen into the body which the immune system recognises and primary immune response is triggered and antibodies are made against that specific antigen, now subsequent encounters with the antigen will trigger a secondary response which is bigger and more powerful.
right. what he said. :)
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