<prompt> True about tuberculin test are all except:Recent conversion in adult is an indication for ATTINH prophylaxis is started, if the test is positiveNo risk of developing TB, if tuberculin test is negativeMay be false negative in immunocompromised patients  <response>: A negative tubercle test indicates that the person has never come in contact with tubercle bacilli.Parija SC. Textbook of Microbiology Immunology. Elsevier Health Sciences; 2014. Page: 355 