While passive immunity offers quick protection, it has several limitations: - Temporary Duration: The immunity provided is short-lived, typically lasting only a few weeks to months. - No Memory Response: Unlike active immunity, passive immunity does not provide long-term protection or immunological memory. Once the administered antibodies are degraded, the protection wanes. - Risk of Allergic Reactions: There is a potential risk of hypersensitivity reactions, particularly if the antibodies are derived from non-human sources.