The ability to resist a particular disease is known as?

• A. Immunity
• B. Infection
• C. Inflammation
• D. Allergy

Answer: (A)

Immunity is the body's ability to resist disease. It encompasses defenses from physical barriers like skin to specialized immune responses (antibodies, white blood cells) that recognize and neutralize pathogens, often remembering them for quicker responses in the future. This resistance can be natural or acquired, and can be enhanced by vaccines that train the immune system to respond more effectively.

Infection refers to a pathogen successfully invading and multiplying in the body, which is what immunity helps prevent. Inflammation is the protective response to injury or infection, not the capability to resist disease itself. Allergy is an overactive, inappropriate immune reaction to harmless substances.