Short-term immunity caused when antibodies produced by other animals for a pathogen are injected into the body is called what?

Short-term immunity caused when antibodies produced by other animals for a pathogen are injected into the body is called what?

• A. Passive immunity
• B. Active immunity
• C. Vaccination
• D. Inflammatory response

Answer: (A)

The concept being tested is passive immunity. When antibodies produced by another animal are injected, they immediately provide protection by binding pathogens or neutralizing toxins, giving you instant defense without waiting for your own immune system to respond. However, this protection is short-term because your body doesn’t generate its own antibodies or memory cells in response to the invader. The borrowed antibodies eventually degrade, so the protection wanes. This is different from active immunity, where your own immune system encounters an antigen, produces antibodies, and creates memory cells for long-lasting protection. Vaccination is a common way to induce active immunity, while the inflammatory response is an immediate, non-specific defense that does not rely on circulating antibodies from another source.

The concept being tested is passive immunity. When antibodies produced by another animal are injected, they immediately provide protection by binding pathogens or neutralizing toxins, giving you instant defense without waiting for your own immune system to respond.

However, this protection is short-term because your body doesn’t generate its own antibodies or memory cells in response to the invader. The borrowed antibodies eventually degrade, so the protection wanes. This is different from active immunity, where your own immune system encounters an antigen, produces antibodies, and creates memory cells for long-lasting protection. Vaccination is a common way to induce active immunity, while the inflammatory response is an immediate, non-specific defense that does not rely on circulating antibodies from another source.