Predicting stringent QuantiFERON-TB Gold Plus conversions in contacts of tuberculosis patients

Autor: Sheng-Wei Pan, Donald G. Catanzaro, Marva Seifert, Rehan R. Syed, Naomi Hillery, Mei-Lin Ho, Valeriu Crudu, Elena Tudor, Nelly Ciobanu, Alexandru Codreanu, Antonino Catanzaro, Timothy C. Rodwell
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Journal of Microbiology, Immunology and Infection, Vol 56, Iss 5, Pp 1073-1083 (2023)
Druh dokumentu: article
ISSN: 1684-1182
DOI: 10.1016/j.jmii.2023.07.014
Popis: Objectives: To assess associations between disease severity in index TB patients and QuantiFERON-TB Gold Plus (QFT-Plus) results in contacts, and predictors for QFT-Plus conversion in contacts over 6–12 months. Methods: TB patients (n = 295) and the contacts (n = 1051) were enrolled during 2018–2021 with QFT-Plus performed at baseline and months 6 and 12. A strong CD8 response was defined as TB2 interferon gamma (IFN-γ) response minus TB1 >0.6 IU/ml and stringent conversion as change from QFT-plus negative to high-positive QFT-Plus (TB1 or TB2 IFN-γ responses >0.7 IU/ml). Results: Contacts with index TB patients with sputum smear >1+ was associated with positive QFT-Plus compared to those without (p
Databáze: Directory of Open Access Journals