On this day in 1970, Sam Sheppard, a doctor convicted of murdering his pregnant wife in a trial that caused a media frenzy in the 1950s, dies of liver failure. After a decade in prison, Sheppard was released following a re-trial.
Official Immunity Law and Legal Definition. Official immunity is a discretionary immunity from personal liability that is granted to public officers for tortious acts and omissions. It is a personal immunity accorded to a public official from liability to anyone injured by actions that are the consequence of exerting official authority.
Cell-mediated immunity is an immune response that does not involve antibodies but rather involves the activation of macrophages and natural killer cells, the production of antigen-specific cytotoxic T-lymphocytes, and the release of various cytokines in response to an antigen.ctive immunity is stimulation of the immune system to produce antigen-specific humoral (antibody) and cellular immunity. Unlike passive immunity, which is temporary, active immunity usually lasts for many years, often for a lifetime. One way to acquire active immunity is to have the natural disease.