<prompt> The use of hyperimmune sera such as hepatitis B immune globulin, rabies immunoglobulin, and human tetanus immune globulin for prophylaxis or treatment is an example of what process?Active immunityPassive immunityHumoral immunityCellular immunity  <response>: The use of hyperimmune sera for treatment or prophylaxis is referred to as passive immunization. This approach is used when allowing the development of a natural immune response would take too long and directly threaten patient survival. This type of immunity is of sho duration and has no memory component. Ref: Levinson W. 2012. Chapter 57. Immunity. In W. Levinson Ed, Review of Medical Microbiology Immunology, 12e. 