Detection of mycobacterium tuberculosis dna in buccal swab samples from children in lima, Peru
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2020Autor(es)
Juan A., Flores
Coit, Julia
Milagros Mendoza
León-Sandoval, Segundo R.
Kelika Kond
Leonid Lecca & Molly F, Frank
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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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