What is a common method of providing passive immunity?

Passive immunity is achieved when an individual receives antibodies from another source rather than producing them through their own immune response. This type of immunity provides immediate protection against pathogens but is typically short-lived, lasting only a few weeks to months.

Immunoglobulin injections are a prime example of providing passive immunity. These injections contain pre-formed antibodies that can rapidly neutralize specific pathogens or toxins. They are often used in situations where immediate immunity is required, such as following exposure to certain infections or in patients with weakened immune systems.

On the other hand, vaccination stimulates the body to produce its own immune response, resulting in active immunity. Antibiotic therapy focuses on treating bacterial infections rather than providing immunity. Intravenous fluids are primarily used for hydration and support, without any role in immunity. Thus, immunoglobulin injections are specifically designed to provide a quick boost to the immune system, exemplifying how passive immunity is delivered effectively.