What is the condition in which antibodies protect a person from disease?

The condition in which antibodies protect a person from disease is known as immunity. Immunity refers to the state in which an organism is resistant to or less susceptible to the effects of a specific pathogen or disease-causing agent. This resistance is provided by the immune system, which includes various cells, tissues, and molecules that work together to protect the body. Antibodies play a critical role in immunity by recognizing and neutralizing pathogens, preventing or reducing the severity of infections. When a person is exposed to a pathogen, the immune system responds by producing antibodies specific to that pathogen. These antibodies bind to the pathogen and prevent it from entering and infecting cells or neutralize its harmful effects. As a result, the person becomes immune or protected from that particular disease, at least for a certain period. This process is often referred to as acquired immunity or adaptive immunity.