| TB | Tuberculosis |
| GI TB | Gastrointestinal tuberculosis |
| CD | Crohn’s disease |
| HIV | Human immunodeficiency virus |
| AFB | Acid-fast bacilli |
| PCR | Polymerase chain reaction |
| IGRA | Interferon-gamma release assay |
| TNF-alpha | Tumor necrosis factor-alpha |
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.