A new method of preventing transmission of hepatitis B virus, called immunoprophylaxis, is described by which of the following statements?

Question

Quizplus · Accepted Answer

Immunoprophylaxis involves the injection of antibodies to provide immediate protection against an infectious agent. In the case of hepatitis B, injection of anti-hepatitis B antibodies into newborns is a method of preventing transmission from an infected mother to her baby. A vaccine stimulates the production of anti-hepatitis B antibodies but does not provide immediate protection. Using anti-hepatitis antibodies to bind to virus present in blood donations is a method of preventing transmission through blood transfusions but does not prevent transmission through other routes. Injection of cytotoxic T cells into a chronically infected patient and stimulation of immune response using interferon are treatments for existing hepatitis B infection, not methods of preventing transmission.

A New Method of Preventing Transmission of Hepatitis B Virus