imunitii

Imunitii, often translated as immunity, is a term used in biology and law to denote a state of protection from harmful agents or processes. In biological contexts, imunitii refers to the body's ability to resist disease-causing organisms or other threats through the immune system. The immune response involves coordinated cellular and molecular mechanisms that detect, neutralize, and remember invaders while sparing healthy tissue.

The immune system has two broad components: innate immunity, which provides immediate, non-specific defenses, and adaptive immunity, which develops specific responses after exposure to antigens. Innate defenses include physical barriers such as skin, chemical barriers, and phagocytic cells. Adaptive immunity relies on B and T lymphocytes and generates immunological memory.

Immunity can be natural or artificial, and active or passive. Natural active immunity results from infection and recovery; artificial active immunity follows vaccination. Natural passive immunity occurs through maternal antibodies; artificial passive immunity uses therapeutic antibodies to protect or treat a disease.

Medical relevance includes immunodeficiencies, autoimmunity, and hypersensitivity. Vaccination, immunotherapy, and nutrition influence immune strength. Immunology is the scientific field that studies recognition, signaling, and regulation of immune responses, with applications in infectious disease control, transplantation, and cancer therapy.

In non-biological usage, immunities can refer to legal or diplomatic exemptions from certain duties or penalties. The term imunitii therefore has multiple meanings depending on context, but in biology it denotes the organism's protective capacity.