Immunizations for viruses such as influenza and polio rely on the body’s ability to recognize the virus and make antibodies against it. All of the following would allow for antibody production to prevent a virus from entering a cell except:
|A||injection of a small amount of “live” virus.|
|B||injection of “heat killed” virus.|
|C||injection of part of the outer coat of the virus.|
|D||injection of viral reverse transcriptase.|
Antibody production against reverse transcriptase would not prevent the virus from entering the cell. All other conditions would allow the immune system to make antibodies against the intact virus, as it exists outside the cells where the immune system can detect it.