Most cafeteria plans offer two different flexible spending accounts; one is for qualified medical expenses and the other is for dependent care expenses. A few cafeteria plans offer other types of FSAs, especially if the employer also offers an HSA.
active immunity see acquired i. artificial immunity acquired (active or passive) immunity produced by deliberate exposure to an antigen, as in vaccination. cell-mediated immunity (CMI), cellular immunity acquired immunity in which the role of T lymphocytes is predominant.genetic immunity innate i.mmunity resulting from the development within the body of antibodies or sensitized T lymphocytes that neutralize or destroy the infective agent. This may result from the immune response to an invading organism or from inoculation with a vaccine containing a foreign antigen.
Active immunity involves the production of ANTIBODIES. Passive immunity is that conferred by antibodies derived from another person or animal and injected or received across the placenta or in the breast milk. Passive immunity is much less persistent than active immunity. immunity resistance to foreign ANTIGENS such as a virus. Immunity can be either active, in which the body produces its own IMMUNE RESPONSE after exposure to a pathogen or a vaccine, or passive in which ready-made antibodies are supplied in a serum (or obtained naturally from the mother).