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passive immunization

immunology
Also known as: passive immunity

Quick Summary

Passive immunization is a method of conferring short-term immunity by transferring preformed antibodies from one individual to another. This process is used when the body does not have time to develop its own immune response, such as in cases of snakebites, botulism, diphtheria, or tetanus.12

Passive immunization can provide life-saving assistance by combating pathogens or poisons rapidly. It is also used for temporary protection against diseases like hepatitis B for travelers and for individuals with B-cell deficiencies who cannot produce their own antibodies. While effective, the immunity provided is temporary, lasting only a few months as the antibodies are broken down. Preparations of these antibodies are known as antiserums.23

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