Residence for more than one month outside the following countries:
 Australia
 Canada
 New Zealand
 United States
 Western or Northern Europe
Current or planned immunosuppression, including:
 HIV infection
 Receipt of organ transplant
 Steroid use (equivalent to prednisone, 15 mg daily for one month)
 Tumor necrosis factor inhibitor use (infliximab [Remicade], etanercept [Enbrel])
 Use of any other immunosuppressive medication
Close contact with someone who has infectious tuberculosis