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.
Humoral immunity is also known as antibody-mediated immunity. It is mediated by antibody molecules secreted by the B- lymphocyte cells that can neutralize specific pathogens outside the cells. B-cells are bone marrow derived, and each cell makes only one kind of antibody which specifically reacts on a particular pathogen.