Trends in Tuberculosis Notifications and Treatment Outcomes in Bangladesh (2019–2021)

Overview

Between 2019 and 2021, Bangladesh's National Tuberculosis Program (NTP) maintained high treatment success rates exceeding 90%, despite challenges posed by the COVID-19 pandemic. The study highlights age-specific risks, treatment outcomes, and the impact of programmatic interventions during this period.

Background

Tuberculosis remains a major global health issue, with Bangladesh among the 30 countries with the highest TB burden. Children with TB face higher mortality and diagnostic delays compared to adults. The WHO's End TB Strategy aims to drastically reduce TB incidence and mortality by 2035, emphasizing the importance of monitoring treatment outcomes. Bangladesh's NTP has expanded access to diagnosis and treatment, but the COVID-19 pandemic disrupted TB services, necessitating evaluation of recovery and outcomes.

Data Highlights

Key Findings

• Bangladesh's NTP achieved treatment success rates exceeding 90% from 2019 to 2021.
• The COVID-19 pandemic caused declines in TB case detection and treatment adherence in 2020.
• Children under 5 years have a higher mortality rate (6.2%) compared to older children (3.1%).
• The NTP expanded services at the Upazila level starting in 2019, supported by WHO and partners.
• Comprehensive surveillance data from the e-TB Manager system enabled detailed monitoring of TB trends and outcomes.
• Unsuccessful treatment outcomes highlight the need for enhanced adherence support and early detection of treatment failure.

Clinical Implications

Clinicians should be aware of the higher mortality risk in young children with TB and prioritize early diagnosis and adherence support in this group. The sustained high treatment success rates indicate effective programmatic strategies, but vigilance is needed to address disruptions like those caused by the COVID-19 pandemic. Integration of patient-centered care and continuous monitoring through systems like e-TB Manager can optimize outcomes.

Conclusion

Bangladesh's NTP demonstrated resilience in maintaining high TB treatment success rates despite pandemic-related challenges. Continued focus on vulnerable populations and robust surveillance is essential to sustain progress toward national and global TB control goals.

References

1. WHO Global Tuberculosis Report 2023 -- Tuberculosis burden and mortality
2. Bangladesh National Tuberculosis Program Reports 2019–2021
3. Meta-analysis on Childhood TB Mortality 2022
4. WHO End TB Strategy 2014
5. e-TB Manager System Overview - USAID SIAPS Program