This page requires you to enable active content. To do so click the Information Bar and then click Allow blocked content.

Home Calculator References Additional Resources FAQ

The Online TST/IGRA Interpreter
Version 4.0

 

BCG World Atlas

Canadian Tuberculosis Standards (8th Edition)

(Coming Soon: Dr. Jay Johnston’s Online TB Risk Score Calculator– Pre-screening)

Disclaimer:
The information on this website is intended to aid in the interpretation of a positive tuberculin skin test (TST) or commercial interferon gamma release assay (IGRA) result, and the potential risk and benefits of TB preventive treatment. This is intended as a guide and not as a substitute for clinical judgment.