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.
In order for an individual to acquire immunity one's body must be stimulated to produce its own immune response components (active immunity) or these substances must be produced by other persons or animals and then passed on to the person (passive immunity).