Health workers working with diphtheria commonly receive a serum with antibodies against the pathogen.? What type of immunity would be? 1.passive artificial immunity 2.active, natural immunity 3.passive, natural immunity Solution Answer: 1.passive artificial immunity Passive artificial immunity can be induced artificially when antibodies are given as a medication to a nonimmune individual. These antibodies may come from the pooled and purified blood products of immune people or from non-human immune animals, such as horses. In fact, the earliest antibody-containing preparations used against infectious diseases came from horses, sheep, and rabbits..