What are the drawbacks to passive humoral immunity?

Passive humoral immunity, while providing immediate protection against pathogens through the transfer of antibodies, has several drawbacks. It offers only temporary immunity, as the transferred antibodies degrade over time and do not stimulate the recipient's immune system to produce its own antibodies. Additionally, it does not provide long-lasting memory against pathogens, leaving individuals vulnerable to reinfection. Lastly, there is a risk of allergic reactions or other adverse effects from the foreign antibodies.