<prompt> Positive tuberculin test means?Resistance to TBSusceptibility to TBHypersensitivityNone of the above  <response>: Ans. is c i.e., Hypersensitivity A positive tuberculin test indicates hypersensitivity to tuberculoprotein, it may be due to : Active infection Subclinical infection Past infection BCG vaccination In overwhelming tuberculosis fulminant cases due to depressed cellular immunity montoux test may be false negative. 