Table 9– Information to be obtained during the interview of the tuberculosis contact
Degree of exposure to the index case and location of possible transmission
Risk of prior infection with Mycobacterium tuberculosis (e.g. foreign-born or prior tuberculosis contact)
BCG vaccination status
Previous TST and/or IGRA result
Tuberculosis history (tuberculosis, latent infection with M. tuberculosis, previous antituberculosis chemotherapy or preventive therapy)
Medical history and comorbidity (immune status (table 2), risk of hepatitis or co-medication)
Symptoms of tuberculosis
Conditions associated with reduced adherence
  • BCG: Bacille Calmette–Guérin; TST: tuberculin skin test; IGRA: interferon-γ release assay.