Which statement best describes passive immunity?

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Study for the VTNE Laboratory Procedures Test. Use flashcards and multiple choice questions, each question offers hints and explanations, enabling increased understanding and retention. Prepare effectively for your exam!

Multiple Choice

Which statement best describes passive immunity?

Explanation:
Passive immunity is the transfer of ready-made antibodies from one individual to another, giving immediate protection without the recipient’s immune system having to respond. Because the antibodies come from a donor, the protection is temporary as those antibodies are eventually cleared from circulation. That’s why the correct statement says it involves antibodies produced in a donor animal. In contrast, active immunity relies on the recipient’s own immune system to respond to an antigen, developing protection that is longer-lasting and often accompanied by immunologic memory. It develops after exposure to a pathogen or after vaccination.

Passive immunity is the transfer of ready-made antibodies from one individual to another, giving immediate protection without the recipient’s immune system having to respond. Because the antibodies come from a donor, the protection is temporary as those antibodies are eventually cleared from circulation. That’s why the correct statement says it involves antibodies produced in a donor animal. In contrast, active immunity relies on the recipient’s own immune system to respond to an antigen, developing protection that is longer-lasting and often accompanied by immunologic memory. It develops after exposure to a pathogen or after vaccination.

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