In some infectious diseases, antibodies specific for the pathogen are not essential for clearing a primary infection with that pathogen, but are essential in preventing re-infection by the same pathogen. This protective role of pathogen-specific antibodies is not useful for any clinical applications.

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Pathogen-specific antibodies play a crucial role in various clinical applications, including diagnostics, vaccine development, and therapeutic interventions, by targeting and neutralizing pathogens to prevent or treat infections.

In Some Infectious Diseases, Antibodies Specific for the Pathogen Are