Passive immunity is often employed in specific clinical scenarios: - Post-Exposure Prophylaxis: For instance, after potential exposure to rabies, tetanus, or hepatitis B, passive immunization can provide immediate protection. - Immune Deficiencies: Patients with conditions that compromise their immune system, such as certain congenital immunodeficiencies or acquired immunodeficiency states, might benefit from passive immunization. - Treatment of Certain Infections: Antitoxins are used to neutralize the effects of toxins produced by pathogens, such as in cases of botulism or diphtheria.
