Mycobacterium tuberculosis
Mycobacteriology and Aerobic ActinomycetesAdded Value of Xpert MTB/RIF Ultra for Diagnosis of Pulmonary Tuberculosis in a Low-Prevalence SettingXpert MTB/RIF (Xpert) for direct molecular detection of Mycobacterium tuberculosis and rifampin resistance from clinical specimens has dramatically improved the diagnosis of tuberculosis (TB). Xpert MTB/RIF Ultra (Ultra) is proposed as a substitute of Xpert with increased sensitivity and improved rifampin resistance detection.
Mycobacteriology and Aerobic ActinomycetesGenetic Diversity of Multi- and Extensively Drug-Resistant Mycobacterium tuberculosis Isolates in the Capital of Iran, Revealed by Whole-Genome SequencingThe emergence and spread of multidrug resistant (MDR) Mycobacterium tuberculosis complex (MTBC) strains is a critical global health problem. Between 2014 and 2018, 606 MTBC strains were isolated from 13,892 suspected pulmonary tuberculosis (TB) patients in Tehran, Iran, including 16 (2.6%) MDR-TB cases.
Mycobacteriology and Aerobic ActinomycetesIdentifying Mixed Mycobacterium tuberculosis Infection and Laboratory Cross-Contamination during Mycobacterial Sequencing ProgramsThe detection of laboratory cross-contamination and mixed tuberculosis infections is an important goal of clinical mycobacteriology laboratories. The objective of this study was to develop a method to detect mixtures of different Mycobacterium tuberculosis lineages in laboratories performing mycobacterial next-generation sequencing (NGS).
Mycobacteriology and Aerobic ActinomycetesFISHing Mycobacterium tuberculosis Complex by Use of a rpoB DNA Probe BaitRoutine staining of sputum specimens does not identify acid-fast bacilli as Mycobacterium tuberculosis with utmost precision, limiting its usability as a confirmatory test for pulmonary tuberculosis. We have combined Ziehl-Neelsen staining and fluorescence in situ hybridization (FISH) to detect M...
- Mycobacteriology and Aerobic ActinomycetesDiagnostic Accuracy and Utility of FluoroType MTBDR, a New Molecular Assay for Multidrug-Resistant Tuberculosis
- Mycobacteriology and Aerobic ActinomycetesEvaluation of the Xpert MTB/RIF Ultra Assay for Direct Detection of Mycobacterium tuberculosis Complex in Smear-Negative Extrapulmonary Samples
- Mycobacteriology and Aerobic ActinomycetesDirect Whole-Genome Sequencing of Sputum Accurately Identifies Drug-Resistant Mycobacterium tuberculosis Faster than MGIT Culture Sequencing
The current methods available to diagnose antimicrobial-resistant Mycobacterium tuberculosis infections require a positive culture or only test a limited number of resistance-associated mutations. A rapid accurate identification of antimicrobial resistance enables the prompt initiation of effective treatment.
- Mycobacteriology and Aerobic ActinomycetesMcSpoligotyping, a One-Step Melting Curve Analysis-Based Protocol for Spoligotyping of Mycobacterium tuberculosis
The direct repeat (DR) region in the Mycobacterium tuberculosis (MTB) genome is composed of highly polymorphic direct variant repeats, which are the basis of spacer oligonucleotide typing (spoligotyping) to study the population structure and epidemiology of M. tuberculosis. However, the membrane...
- Mycobacteriology and Aerobic ActinomycetesControl of Artifactual Variation in Reported Intersample Relatedness during Clinical Use of a Mycobacterium tuberculosis Sequencing Pipeline
Contact tracing requires reliable identification of closely related bacterial isolates. When we noticed the reporting of artifactual variation between Mycobacterium tuberculosis isolates during routine next-generation sequencing of Mycobacterium spp., we investigated its basis in 2,018 consecutive...
