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.
active immunity, a form of long-term, acquired immunity. It protects the body against a new infection as the result of antibodies that develop naturally after an initial infection or artificially after a vaccination. Compare passive immunity. See also acquired immunity, immune response, natural immunity.ctive immunity. that which follows exposure to an antigen; acquired immunity attributable to the presence of antibody or of immune lymphoid cells formed in response to antigenic stimulus. Called also adaptive immunity.