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Passive immunity can occur naturally, when maternal antibodies are transferred to the fetus through the placenta, and it can also be induced artificially when high levels of antibodies specific to a pathogen or toxin (obtained from humans horses or other animals) are transferred to non-immune persons Through Blood.
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Not sure if i answered your question completely but hope it helps.
If you plan on copying please use in own words :)
Artificial passive immunity comes from injected antibodies created within a different person or an animal. These antibody-containing preparations are termed antiserum. The rabies vaccine and snake antivenom are two examples of antiserums that yield passive immunity.
What is immunity?
Immunity can be defined as a complex biological system endowed with the capacity to recognize and tolerate whatever belongs to the self, and to recognize and reject what is foreign (non-self).
Passive immunity is protection from a disease provided by antibodies created outside of the body.
For more information regarding immunity, visit:
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