<prompt> Tuberculin test denotes:Previous or present sensitivity to tubercle proteinsPatient is resistant to TBPerson is susceptible to TBProtective immune status of individual against TB  <response>: Ans. is a i.e., Previous or present sensitivity to tubercle proteinsa Tuberculin test denotes Type IV delayed hypersensitivity to tuberculoprotein 0.1 ml Purified protein derivative and used in diagnosis of latent tuberculosis.b Positive tuberculin test indicates exposure to Mycobacterium tuberculosis in the form of infection or immunization with or without active disease. 