Tuberculosis Research Articles

The Relationship Between Compliance in Taking Anti Tuberculosis Drugs and the Results of Acid-Fast Bacteria (AFB) Examination as an Indicator of Recovery of TB Patients in Tanjung Pinang City in 2022-2023

Tuberculosis (TB) is a chronic infectious disease caused by Mycobacterium tuberculosis with a treatment period of 6 to 8 months. Mycobacterium tuberculosis can become germ resistant or multidrug resistance (MDR) if you do not comply in taking anti-tuberculosis drugs (ATD), making this disease very difficult to cure. This research uses secondary data from the Tanjung Pinang City Population Control and Family Planning Health Service for 2022-2023. The aim is to determine the relationship between compliance in taking Anti-Tuberculosis Drugs (ATD) and the results of acid-fast bacteria (AFB) examinations of TB patients in Tanjung Pinang City. The research methodology was observational analytic using a cross-sectional design, with a total sampling technique from pulmonary TB patients with positive AFB, negative AFB with positive thorax and extrapulmonary, 252 TB patients. Data analysis used the Fisher Exact test with a confidence level of 95%. The results of data analysis showed that 91.3% of patients complied in taking drugs, and 87.3% recovered with negative AFB results. Fisher Exact analysis showed a significant difference in proportion between compliance in taking anti-tuberculosis drugs and the results of AFB examination of pulmonary TB patients with a p-value of 0.000 (p < ∝0.05). The conclusion from this study is that there is a relationship between compliance in taking anti-tuberculosis drugs and the results of AFB examinations of pulmonary TB patients in Tanjung Pinang City in 2022-2023. Keywords: Pulmonary TB, ATD, (AFB), Ziehl Neelsen

Stochastic modeling and analysis of Hepatitis and Tuberculosis co-infection dynamics

Abstract Several mathematical models have been developed to investigate the dynamics of Tuberculosis (TB) and Hepatitis B virus (HBV). Numerous current models for TB, HBV, and their co-dynamics fall short in capturing the important and practical aspect of unpredictability. It is crucial to take into account a stochastic co-infection HBV–TB epidemic model since different random elements have a substantial impact on the overall dynamics of these diseases. We provide a novel stochastic co-model for TB and HBV in this study, and we establish criteria on the uniqueness and existence of a non-negative global solution. We also looked at the persistence of the infections as long its dynamics are governable by the proposed model. To verify the theoretical conclusions, numerical simulations are presented keeping in view the associated analytical results. The infections are found to finally die out and go extinct with certainty when Lévy intensities surpass the specified thresholds and the related stochastic thresholds fall below unity. The findings also demonstrate the impact of noise on the decline in the co-circulation of HBV and TB in a given population. Our results provide insights into effective intervention strategies, ultimately aiming to improve the management and control of TB and HBV co-infections.

The influence of comorbidities on treatment outcomes in patients with tuberculosis

To study the association of comorbidities and treatment outcomes in tuberculosis (TB) patients. A retrospective study includes all TB patients aged 18 years and older registered for treatment in Moscow in period 2021 the end of the 3rd quarter of 2022 using data of regional epidemiological TB monitoring system, a total of 3039 patients. The frequency and spectrum of comorbidities, its impact on the risk of adverse treatment outcome (ATO) and mortality using univariate and regression analysis were assessed. Comorbidities were identified in 1528 (50.3%) patients (95% confidence interval - CI 48.5-52.1); HIV infection (18.0%), chronic nonspecific lung disease (9.6%) and cardiovascular disease (8.2%) were predominant. The presence of comorbid pathology increased the odds of uneffective treatment (odds ratio - OR 2.56, 95% CI 2.22-3.03) and death (OR 2.45, 95% СI 1.67-3.59). Independent risk factors for ATO were HIV infection (OR 4.10, 95% CI 3.36-5.10), substance use (OR 2.57, 95% CI 1.70-3.66), chronic nonspecific lung disease (OR 1.39, 95% CI 1.04-1.88), diabetes mellitus (OR 1.69, 95% CI 1.15-2.48), liver pathology (OR 2.10, 95% CI 1.46-3.03), mental illness (OR 2.01, 95% CI 1.32-3.06). The death rate was 13.4%; the most significant predictors of mortality were HIV infection (OR 3.89, 95% CI 2.42-6.22) and liver disease (OR 1.90, 95% CI 1.27-2.82). A comorbidome model was constructed to assess the importance of different comorbidities for patient prognosis. The presence of comorbidity (predominantly HIV infection and liver disease) is a significant risk factor for ATO and mortality in TB patients, which should be taken into account when organizing and providing TB care to comorbid patients.

A description of lineage 1 Mycobacterium tuberculosis from papua, Indonesia

Indonesia has the third highest number of tuberculosis (TB) patients infected with Mycobacterium tuberculosis (MTB) Lineage 1 (L1). Most of these MTB L1 cases can be found in Indonesia's remote easternmost province of Papua, one of Indonesia's most underdeveloped provinces with a particularly high burden for TB. In this study, we sequenced and described 42 MTB L1 isolates from a well-characterized cohort of patients. We found a genetically diverse MTB L1 population with no association between pathogen genetic relatedness and place of residence or pathogen genetic relatedness and patient ethnicity, which could reflect mixing between different locales and ethnicities or our low sampling fraction. Only a small number showed genetic variants associated with drug resistance (5/42, 11.9 %), probably due to a lack of effective treatment programs. The Papuan isolates showed similarities to other Island Southeast Asian Countries due to the high proportion of L1.2.1.2.1 (30/42, 71.4 %), especially East Timor and the Philippines. This study fills a research gap of MTB L1 in Indonesian Papua and should serve as a stepping stone for further research in the region.

Spatial and temporal analysis and forecasting of TB reported incidence in western China

ObjectiveTuberculosis (TB) remains an important public health concern in western China. This study aimed to explore and analyze the spatial and temporal distribution characteristics of TB reported incidence in 12 provinces and municipalities in western China and to construct the optimal models for prediction, which would provide a reference for the prevention and control of TB and the optimization of related health policies.MethodsWe collected monthly data on TB reported incidence in 12 provinces and municipalities in western China and used ArcGIS software to analyze the spatial and temporal distribution characteristics of TB reported incidence. We applied the seasonal index method for the seasonal analysis of TB reported incidence and then established the SARIMA and Holt-Winters models for TB reported incidence in 12 provinces and municipalities in western China.ResultsThe reported incidence of TB in 12 provinces and municipalities in western China showed apparent spatial clustering characteristics, and Moran’s I was greater than 0 (p < 0.05) over 8 years during the reporting period. Among them, Tibet was the hotspot for TB incidence in 12 provinces and municipalities in western China. The reported incidence of TB in 12 provinces and municipalities in western China from 2004 to 2018 showed clear seasonal characteristics, with seasonal indices greater than 100% in both the first and second quarters. The optimal models constructed for TB reported incidence in 12 provinces and municipalities in western China all passed white noise test (p > 0.05).ConclusionsAs a hotspot of reported TB incidence, Tibet should continue to strengthen government leadership and policy support, explore TB intervention strategies and causes. The optimal prediction models we developed for reported TB incidence in 12 provinces and municipalities in western China were different.

Tribal Health in India: Overcoming Public Health Challenges with a Focus on Tuberculosis

Introduction: India’s tribal communities face significant public health issues, with tuberculosis (TB) being a major concern. These populations experience a higher TB burden due to limited healthcare access, socioeconomic inequalities, and distinct cultural practices. This study focuses on the prevalence and impact of TB among these communities. Methods: A comprehensive review of literature from databases such as PubMed, Scopus, ResearchGate, and Google Scholar was conducted to analyze the health challenges, particularly TB, affecting India’s tribal populations. Results: The review highlights a significant disparity in TB prevalence between tribal and non-tribal populations. Factors like inadequate healthcare infrastructure, limited medical access, and socioeconomic inequalities, along with cultural practices, complicate TB transmission and treatment, emphasizing the need for culturally tailored interventions. Conclusion: Addressing the TB crisis in India’s tribal communities requires a holistic and culturally sensitive approach. Collaborative efforts among healthcare providers, policymakers, and tribal communities are crucial to improving health outcomes and preserving cultural heritage for a sustainable future.

Tuberculin skin test repetition after TNF-α inhibitors in patients with chronic inflammatory arthritis: a long-term retrospective cohort in endemic area

ObjectivesTo evaluate the tuberculin skin test (TST) conversion in chronic inflammatory arthropathies (CIA) patients on TNFα inhibitors (TNFi) and without previous latent tuberculosis infection (LTBI) treatment.MethodsPatients with rheumatoid arthritis (RA), ankylosing spondylitis (AS) and psoriatic arthritis (PsA) with negative LTBI were retrospectively evaluated for TST conversion and active tuberculosis (TB) after six months of exposition to TNFi. Two groups were compared: patients who repeated TST (TST-repetition) during the follow-up and patients who did not (non-TST-repetition).ResultsA total of 355 CIA patients on TNFi were screened and 138 (38.9%) did not fulfill the inclusion criteria. Of the remaining 217 CIA patients, 81 (37.3%) repeated TST during TNFi treatment. TST conversion rate was observed in 18 (22.2%) patients without significant differences among CIA (p = 0.578). The number of TB cases was low (n = 10; 4.6%) and was similar in TST-repetition and non-TST-repetition groups [2 (2.5%) vs. 8 (5.9%), p = 0.328]. Of note, 30% of active TB occurred early (6–12 months of TNFi exposure) and the median (full range) time to incident TB was 1.3 (0.6–10.6) years, whereas the median (full range) time to TST repetition was later [3.3 (0.5–13.4) years]. The incidence of active TB was lower among RA patients than AS patients [342 (95% CI 41 − 1446) vs. 1.454 (95% CI 594-2993)/100,000 patient-years, p = 0.049].ConclusionThese results indicate that TST repetition is associated with a high conversion rate, suggesting the need for recommended treatment. The delayed repetition of TST and low number of active TB cases hampered the evaluation of this strategy effectiveness to prevent active infection. Larger studies with systematic repetition patterns are necessary. In addition, the study highlights the need for a greater surveillance for TB in AS patients.

Trehalose catalytic shift is an intrinsic factor in Mycobacterium tuberculosis that enhances phenotypic heterogeneity and multidrug resistance.

Drug-resistance (DR) in many bacterial pathogens often arises from the repetitive formation of drug-tolerant bacilli, known as persisters. However, it is unclear whether Mycobacterium tuberculosis (Mtb), the bacterium that causes tuberculosis (TB), undergoes a similar phenotypic transition. Recent metabolomics studies have identified that a change in trehalose metabolism is necessary for Mtb to develop persisters and plays a crucial role in metabolic networks of DR-TB strains. The present study used Mtb mutants lacking the trehalose catalytic shift and showed that the mutants exhibited a significantly lower frequency of the emergence of DR mutants compared to wildtype, due to reduced persister formation. The trehalose catalytic shift enables Mtb persisters to survive under bactericidal antibiotics by increasing metabolic heterogeneity and drug tolerance, ultimately leading to development of DR. Intriguingly, rifampicin (RIF)-resistant bacilli exhibit cross-resistance to a second antibiotic, due to a high trehalose catalytic shift activity. This phenomenon explains how the development of multidrug resistance (MDR) is facilitated by the acquisition of RIF resistance. In this context, the heightened risk of MDR-TB in the lineage 4 HN878 W-Beijing strain can be attributed to its greater trehalose catalytic shift. Genetic and pharmacological inactivation of the trehalose catalytic shift significantly reduced persister formation, subsequently decreasing the incidence of MDR-TB in HN878 W-Beijing strain. Collectively, the trehalose catalytic shift serves as an intrinsic factor of Mtb responsible for persister formation, cross-resistance to multiple antibiotics, and the emergence of MDR-TB. This study aids in the discovery of new TB therapeutics by targeting the trehalose catalytic shift of Mtb.

Knowledge, attitudes and practices towards tuberculosis: results of a community-based survey in the Karamoja subregion, North Eastern Uganda

BackgroundThe Karamoja subregion in north-eastern Uganda has very high Tuberculosis (TB)case notification rates and, until recently, had suboptimal treatment completion rates among patients diagnosed with TB. We evaluated community knowledge, attitudes and practices towards Tuberculosis in order to identify barriers to TB control in this region.MethodsFrom September to October 2022, we conducted a community-based survey in four districts in the Karamoja subregion. We collected data on TB knowledge, attitudes, and practices using a structured electronic questionnaire. We generated knowledge, attitude and practice scores. We used a survey-weighted zero-truncated modified Poisson model to assess the association between knowledge/attitude scores and respondents’ characteristics and a complementary log-log model to assess the association between practice scores and respondents’ characteristics. Data analysis was carried out using STATA version 14.ResultsA total of 1927 respondents were interviewed. Of these, 55.5% were female, and 1320 (68.6%) had no formal education. Overall, 68.5% 95% CI (59.6–76.7%) had knowledge scores of ≥ 60%. Higher TB knowledge scores were associated with being employed (adjusted prevalence ratio, aPR = 1.22, 95% CI 1.04–1.42, p = 0.01) while being a wife in a household was associated with lower TB knowledge (aPR = 0.90, 95% CI 0.82–0.99, p = 0.03). Being 25–34 years old was associated with a positive attitude towards TB (PR = 1.06, 1.01–1.11, p = 0.01). Over 85% of respondents would go to the health facility immediately if they had TB signs and symptoms. Almost all respondents (98.6%) would start TB treatment immediately if diagnosed with the disease.ConclusionMore than two thirds of patients had good knowledge and practices towards TB which can be leveraged to improve uptake of TB control interventions in the region. Additional interventions to improve TB knowledge and practice should focus on specific segments within the communities e.g., older women in the households.

Coexistence of Tuberculosis and Malignancy in a Single Cervical Lymph Node: A Case Series.

Background: The coexistence of tuberculosis (TB) and malignancy within the same lymph node is a rare, if not exceptional, pathology, with only a few cases reported. Methods: We collected patients who presented concomitant TB and malignancy within the same cervical lymph node diagnosed during the period (2010-2023). Results: Ten patients were included. They received or were receiving treatment for cancer or TB in 7 cases. All patients presented with recurrent or new lymph nodes despite being under treatment. The 3 remaining patients did not have a history of cancer or TB. Histopathological examination confirmed the coexistence of TB and malignancy within the same lymph node. Histological types of diagnosed cancers included laryngeal squamous cell carcinoma, papillary thyroid carcinoma, nasopharyngeal carcinoma, medullary carcinoma of the thyroid gland, Hodgkin lymphoma, and non-Hodgkin lymphoma. All patients received treatment for TB and cancer. Two patients died from septic complication in 1 case and from pulmonary complication due to miliary TB in 1 case. Conclusions: Concomitant TB and malignancy are possible, especially in countries with a high incidence of TB. Immunocompromised states related to cancer, and its treatments can add the risk of flare-up of a latent infection.

Deep Immunoprofiling of Large-Scale Tuberculosis Dataset at Single Cell Resolution Reveals a CD81bright γδ T Cell Population Associated with Latency.

Tuberculosis (TB) remains one of the leading causes of death among infectious diseases, with 10.6 million new cases and 1.3 million deaths reported in 2022, according to the most recent WHO report. Early studies have shown an expansion of γδ T cells following TB infection in both experimental models and humans, indicating their abundance among lung lymphocytes and suggesting a role in protective immune responses against Mycobacterium tuberculosis (M. tuberculosis) infection. In this study, we hypothesized that distinct subsets of γδ T cells are associated with either protection against or disease progression in TB. To explore this, we applied large-scale scRNA-seq and bulk RNA-seq data integration to define the phenotypic and molecular characteristics of peripheral blood γδ T cells. Our analysis identified five unique γδ T subclusters, each with distinct functional profiles. Notably, we identified a unique cluster significantly enriched in the TCR signaling pathway, with high CD81 expression as a conserved marker. This distinct molecular signature suggests a specialized role for this cluster in immune signaling and regulation of immune response against M. tuberculosis. Flow cytometry confirmed our in silico results, showing that the mean fluorescence intensity (MFI) values of CD81 expression on γδ T cells were significantly increased in individuals with latent TB infection (TBI) compared to those with active TB (ATB). This finding underscores the importance of CD81 and its associated signaling mechanisms in modulating the activity and function of γδ T cells under TBI conditions, providing insights into potential therapeutic targets for TB management.

Incidence of anaemia and its predictors among HIV-infected children receiving highly active antiretroviral treatment in North-West Ethiopia: a multicentre retrospective follow-up study

BackgroundAnaemia is one of the most common problems in HIV-infected patients associated with increased HIV progression, decreased functional capacity, survival and quality of life. For better interventions, up-to-date information concerning...

Cheminformatics-enhanced discovery of therapeutic agents targeting isocitrate lyase in Mycobacterium tuberculosis infections

Tuberculosis (TB) is a global health challenge; therefore, there is an urgent requirement to develop a novel and more effective anti-TB therapeutic. This study targeted the isocitrate lyase (ICL) protein due to its pivotal role in the pathogenicity of Mycobacterium tuberculosis (Mtb). Virtual screening of 8752 bioactive compounds used an ML-based QSAR model and molecular docking. ADMET testing was performed on the top three hits to identify the compound most closely mimicking a drug molecule. The top hits, 648 and 2785758, showed high binding affinity towards ICL with −7.3 and −7 kcal/mol, comparable to the control. These molecules also showed strong binding with the residue Asp108, which plays a vital role in ICL activity. Molecular dynamics simulations showed stability for 648 and 2785758, comparable to the control compound used in this study. It was found that 648 bound to the protein maintained the RMSD constant and consistent at 0.3 nm for a complete 100 ns simulation. 2785758 showed a comparable RMSD trend to the control. Both 648 and 2785758 showed high RMSF for critical residue Asp108. Further, PCA and FEL confirmed the formation of a stable complex. MM/GBSA estimations of binding free energy indicated that compounds 648 had an elevated level of stability (ΔG TOTAL = −28.11 kcal/mol) and 2785758 (ΔG TOTAL = −21.05 kcal/mol). This study suggests that compounds 648 and 2785758 can potentially affect the activity of ICL, leading to its inactivation and ultimately preventing the progression of tuberculosis. Communicated by Ramaswamy H. Sarma

A disposable, portable electrochemical immunosensor for rapid in situ detection of bovine tuberculosis

This contribution describes the development of a simple, fast, cost-effective, and sensitive impedimetric immunosensor for quantifying bovine tuberculosis (TB) in bovine serum samples. The construction of the immunosensor involved immobilizing the purified protein derivative (PPD) of M. bovis onto a screen-printed electrode that was modified with gold nanoparticles (AuNPs) and a polypyrrole (pPy) film synthesized electrochemically. The immunosensor exhibited a linear range from 0.5 μg mL−1 to 100 μg mL−1 and achieved a limit of detection (LD) of 100 ng mL−1 for the detection of anti-M. bovis antibody. The recovery percentages obtained in bovine serum samples were excellent, ranging between 98 % and 103 %.This device presents several advantages over alternative methods for determining TB in bovine serum samples. These include direct, in situ measurement without the need for pre-treatment, utilization of small volumes, thus avoiding harmful solvents and expensive reagents, and portability. In addition, the immunosensor exhibits both physical and chemical stability, retaining effectiveness even after 30 days of modification. This allows simultaneous incubations and facilitates large-scale detection.Hence, this immunosensor presents itself as a promising diagnostic tool for detecting anti-M. bovis antibodies in bovine serum. It serves as a viable alternative to tuberculin and ELISA tests.

Design, Synthesis, and Evaluation of the Antitubercular Activity of 5-Phenyl Substituted-5, 6-dihydropyrido[2, 3-d]pyrimidine-4, 7(3H, 8H)-dione Compounds.

Tuberculosis (TB) remains a major public health challenge, with research on new anti-TB drugs crucial for global TB elimination efforts. Here, we report a novel class of anti-TB agents. Especially, compounds 5b and 5j exhibited the highest activity [minimum inhibitory concentration (MIC) H37Rv: 0.16 and 0.12 μg/mL]. Chiral resolution was performed on compounds 5b and 5j; the isomers were evaluated for their activity and safety, confirming that the R-isomer 5bb and 5jb displayed significant anti-TB activity (MIC H37Rv: 0.03-0.06 μg/mL; MDR-Mtb: 0.125-0.06 μg/mL) and low hERG toxicity. Further evaluations on 5bb and 5jb demonstrated good metabolic stability, favorable kinetic parameters and oral bioavailability (F: 56.7 and 63.8%, respectively). The results of in vivo activity assessment indicate that 5bb and 5jb exhibit protective and therapeutic effects on zebrafish larvae and adult zebrafish infected with Mycobacterium marinum. Based on these results, compounds 5bb and 5jb are considered promising candidates for further in-depth studies.

Paving the Way to Innovative, Child-Friendly Pediatric Diagnostic Methods for Tuberculosis: Introduction of Stool-Based Testing in Ukraine.

Like many countries, Ukraine faces challenges with diagnosing tuberculosis (TB) in children due to the paucibacillary nature of the disease and difficulty obtaining respiratory samples. To improve diagnostic efficiency, stool testing is being integrated into routine pediatric TB services. This started with a pilot introduction at 12 regional TB facilities, where stool was collected for children with a preliminary diagnosis of TB, based on clinical and/or radiological or laboratory findings, in addition to routine testing. For 168 children, a stool test was conducted between November 2021 and September 2022, with samples submitted in all 12 pilot regions. For 132 children, other samples were available in addition to stool. Mycobacterium tuberculosis (MTB) was bacteriologically confirmed in 37 children (in stool for 18 children). For 7 of the 18 children with MTB in stool, stool was the only sample in which MTB was detected. Rifampicin resistance was detected in seven children (in stool for three). This noninvasive TB diagnostic sample is especially beneficial for young children who cannot produce sputum. Early detection of TB and its drug-resistant strains in children will allow medical workers to provide safer and more effective treatment and save more lives. Based on the pilot implementation, Ukraine's national TB program began implementing stool testing throughout the country.

Bridging the gap between molecular and genomic epidemiology in tuberculosis: inferring MIRU-VNTR patterns from genomic data.

The transition from molecular epidemiology in tuberculosis (TB), based on the analysis of repetitive regions (VNTR-based genotyping), to genomic epidemiology transforms in the precision with which we track transmission. However, short-read sequencing, the most common method for performing genomic analysis, is poor at analyzing repetitive regions. This means that we face a gap between the new genomic data and the large amount of information stored in historical databases, which is also an obstacle to cross-national surveillance involving settings where only molecular data are available. Long-read sequencing could help bridge this knowledge gap by allowing analysis of repetitive regions. Our study demonstrates that MIRU-VNTR patterns can be successfully inferred from long-read sequences, allowing the correct assignment of new cases as clustered/orphan by linking new data extracted from genomic analysis to historical MIRU-VNTR databases. Our data may provide a starting point for bridging the knowledge gap between the molecular and genomic eras in tuberculosis epidemiology.

Tuberculosis reactivation following apremilast therapy for psoriasis: Time to consider routine TB screening?

Apremilast is a relatively new oral treatment for psoriasis, which reduces expression of pro-inflammatory factors, including tumour necrosis factor-α (TNFα), critical to the immune control of Mycobacterium tuberculosis infection. In randomised controlled trials (RCTs) for apremilast no new cases of active tuberculosis (TB) were identified, thus, screening for latent TB infection (LTBI) is not currently recommended prior to apremilast initiation. We describe a case of M.tuberculosis reactivation shortly after commencement of apremilast for psoriasis. We are recommending clinicians perform LTBI risk assessment in all patients, and appropriate LTBI screening in select populations prior to apremilast initiation.

Primary Subglottic Laryngeal Tuberculosis Mimicking as Malignancy: A rare case Report

Primary Subglottic Laryngeal Tuberculosis Mimicking as Malignancy: A rare case Report

Effectiveness of Systematic Screening and Treatment of Tuberculosis in Prison in Thailand.

The global incidence of tuberculosis (TB) in prison is 5 to 70 times greater than that in the general population. The systematic screening and treatment of TB in prison benefit TB control and treatment outcomes. However, no study has supported this in Thailand. Here, we evaluated the effectiveness of long-term, continuous, systematic screening for TB control. We conducted a retrospective study in Suratthani Central Prison, Thailand, using annual TB screening from 2016 to 2020. A positive TB screening was defined as having any TB symptoms or chest radiography abnormality. We collected sputum smear and Xpert® Mycobacterium tuberculosis/rifampicin (MTB/RIF) results from those inmates with positive screening results. Bacteriologically confirmed TB was defined as a positive sputum smear or M. tuberculosis detected by Xpert assay. Inmates with clinically diagnosed TB were also eligible for this study. Those inmates diagnosed with active TB were sent to an isolation zone in prison and received anti-TB medicine using directly observed therapy and were monitored by pulmonologists during the treatment course via telemedicine. Of 18,965 TB screening events, 175 patients were diagnosed with TB. The 5-year prevalence was 922 per 100,000 inmates. The relative reduction in TB prevalence was 60.5% from 2016 to 2020. Overall, 94.3% of TB patients were successfully treated (sum of patients cured and treatment completed). Three TB patients died during the 5-year study period. All occurred in 2016. The systematic screening and treatment of TB in inmates effectively reduced the prevalence and mortality in Suratthani Central Prison. The success rate of treatment in this prison has been consistently high.