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Diagnostic performance of Xpert MTB/RIF Ultra assay for tuberculosis in stool specimens among adult presumptive TB patients in a generalized HIV epidemic setting
SS-31 · biorxiv-preprint · 2026 · Observational
The Xpert-Ultra assay in stool specimens shows high sensitivity and specificity for diagnosing TB in patients who cannot produce sputum, but further research is needed to validate these findings.
Sensitivity of Xpert-Ultra assay in stool specimen was 90.32% (95% CI, 74.25% to 97.96%)