We report the results of investigating and managing a tuberculosis (TB) exposure in apostpartum care center. Among the contacts exposed to a nursing assistant with subclinical TB,5 of 44 neonates (11.4%) had positive tuberculin skin tests (TSTs) at 3 months of age, and all theTST-positive neonates received the Bacille Calmette-Guérin vaccination. Seven of 28 healthcareworkers (25.0%) and 1 of 3 household contacts (33.3%) were positive in the initial or repeatedinterferon-gamma release assay. None of the contacts developed TB disease during the studyperiod. Annual TB examinations of healthcare personnel at a postpartum care center under theTuberculosis Prevention Act in South Korea enabled the early detection of subclinical TB, whichreduced the risk of transmission to neonates under strict coronavirus disease 2019 preventionmeasures.
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Predictors of positive tuberculin skin test in neonates exposed to pulmonary tuberculosis Yun Choi, In Kyoung Kim, So Jung Kim, Hye Sung Kim, Young Ae Kang, Jin Su Song, Novel Njweipi Chegou PLOS ONE.2024; 19(5): e0303050. CrossRef
Objectives
To evaluate the diagnostic accuracy of smear and culture tests of clinical samples of pulmonary tuberculosis after the introduction of the directly observed treatment short-course (DOTS) program. Methods
Using sputum samples from 572 individuals as a self-selected population, both Ziehl–Neelsen staining and culturing on Lowenstein–Jensen medium were carried out as diagnostic procedures. Using Bayes’ rule, the obtained data set was analyzed. Results
Of the 572 samples, 33 (0.05769) were true positive (results of both tests positive) cases; 22 samples (0.03846) were false positive (smear test positive and culture test negative) cases; 62 samples (0.10839) were false negative (smear test negative and culture test positive) cases; and 455 samples (0.79545) were true negative (results of both tests negative) cases. Values of test statistics, sensitivity, and specificity were used to compute several inherent other Bayesian test statistics. The a priori probability or prevalence value of tuberculosis in the targeted population was 0.166. The a posteriori probability value computed arithmetically was 0.6614 and that obtained by the graphical method was 0.62. Conclusions
The smear test was found to be dependable for 95.4% with stable TB infections, and it was not dependable for 34.7% without stable TB infections. The culture test could be regarded as the gold standard for 96.15% as seen with the data set, which was obtained after the implementation of the DOTS program.
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Comprehensive Determination of Mycobacterium tuberculosis and Nontuberculous Mycobacteria From Targeted Capture Sequencing Ya He, Ziying Gong, Xiaokai Zhao, Daoyun Zhang, Zhongshun Zhang Frontiers in Cellular and Infection Microbiology.2020;[Epub] CrossRef
Primary tuberculosis of the glans penis-a rare case report Rajashree Panigrahy, Suren Kumar Das, Subhrajita Rout, Mahesh Chandra Sahu, Rabindra Nath Padhy Asian Pacific Journal of Tropical Disease.2014; 4: S653. CrossRef