Are survey-based estimates of the burden of drug resistant TB too low?
Estimates of drug resistant tuberculosis based on samples of incident cases should be viewed as a lower bound of the total burden of resistance.
The increase in VAB use over time suggests that the procedure is well tolerated. The results demonstrate a VAB sensitivity of 92% for carcinoma diagnosis. In 96% of cases (150 of 156), VAB results were conclusive enough to avoid a subsequent SBx. This data suggests that VAB may be a preferable alternative to surgical biopsy for many B3 lesions.