We examined Mycobacterium tuberculosis DNA detection from buccal swab samples collected from children in Lima, Peru. DNA was extracted and amplified via real-time polymerase chain reaction. Sensitivity was 21% (95% confidence interval [CI]: 7%-42%) in 24 culture-confirmed tuberculosis cases and 4.6% (95% CI: 1%-13%) in 65 clinically diagnosed unconfirmed cases. Sensitivity was highest for smear-positive tuberculosis. Specificity was 99% in the 199 controls (95% CI: 96%-100%).
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7578116 | PMC |
| http://dx.doi.org/10.1097/INF.0000000000002828 | DOI Listing |
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