Abstract
The role of preexisting interferon (IFN) γ responses in controlling bacillary burden in human immunodeficiency virus (HIV)-associated tuberculosis is not known. Among BCGimmunized HIV-infected adults who developed tuberculosis in a phase III trial of an investigational tuberculosis vaccine, greater baseline IFN-γ responses to early secretory antigenic target 6 and Mycobacterium tuberculosis whole-cell lysate were associated with reduced bacillary burden on sputum smear grade, days to culture positivity on agar, and sputum culture grade during subsequent tuberculosis. This association was most consistent among recipients of the investigational vaccine. When HIV-associated tuberculosis develops, greater preexisting IFN-γ responses to mycobacterial antigens are associated with reduced tuberculosis bacillary burden. ClinicalTrials.gov Identifier. NCT0052195.
Original language | English (US) |
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Pages (from-to) | 1629-1633 |
Number of pages | 5 |
Journal | Journal of Infectious Diseases |
Volume | 208 |
Issue number | 10 |
DOIs | |
State | Published - Nov 15 2013 |
Externally published | Yes |
Keywords
- Antigen
- HIV
- Interferon gamma
- Tuberculosis
- Vaccine
ASJC Scopus subject areas
- Immunology and Allergy
- Infectious Diseases