Which of the following would test positive for the tuberculin response?
A) someone who has previously had tuberculosis
B) someone who has been immunized with the tuberculosis vaccine
C) someone who has previously been injected subcutaneously with tuberculin
D) someone who has been immunized with the tuberculosis vaccine or has previously had tuberculosis
E) someone who has been immunized with the tuberculosis vaccine or previously been injected subcutaneously with tuberculin

Question

Quizplus · Accepted Answer

Both individuals who have been immunized with the tuberculosis vaccine and individuals who have previously had tuberculosis will have a positive tuberculin response due to the presence of memory immune cells. People who have only been injected subcutaneously with tuberculin will not necessarily have a positive response, as this is only a test for a pre-existing immune response to tuberculosis.

Which of the Following Would Test Positive for the Tuberculin