What does immunity refer to?

Immunity refers to the body's ability to resist infection and disease, primarily through the actions of the immune system. This system protects against pathogens, such as viruses and bacteria, by recognizing and eliminating them. When discussing immunity, it often encompasses various aspects, including both innate immunity (the body's immediate response mechanisms) and acquired immunity (the specific responses developed after exposure to pathogens).

Understanding immunity in this context means recognizing that it's not merely the presence of certain substances like antibodies or the existence of a specific virus or toxins. Instead, immunity focuses on the body's overall capability to fend off infections, making this response central to health and wellness. This concept is foundational in discussions about vaccinations and disease prevention, as boosting immunity can significantly reduce the likelihood of infection.