The primary difference between active and passive immunity is that in active immunity,antibodies are produced in response to the presence of an antigen,while in passive immunity,pre-formed antibodies are provided from one person to another.

Question

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Active immunity involves the production of antibodies by the person's own immune system in response to the presence of an antigen. Passive immunity, on the other hand, involves the transfer of pre-formed antibodies from one person to another.

The Primary Difference Between Active and Passive Immunity Is That