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Prepare a detailed note with context of community medicine, on end game strategy of TB and End TB strategy

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WHO End TB strategy pillars targets 2030 community medicine

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"End TB" strategy tuberculosis elimination 2030

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https://www.who.int/teams/global-programme-on-tuberculosis-a…

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Detailed Note: End Game Strategy of TB & End TB Strategy

Context: Community Medicine / Preventive & Social Medicine

1. Introduction and the Need for a Paradigm Shift

Tuberculosis remains the world's deadliest infectious disease measured by annual deaths. It claims approximately 3 lives every minute. Of the ~9 million people who fall ill with TB each year, more than 3 million are not diagnosed, treated, or officially registered by national TB programmes - collectively termed the "missed millions." Each undiagnosed and untreated individual can infect up to 15 people per year, making TB a massive public health failure.
TB is not purely a biomedical problem. It is deeply entangled with poverty, undernutrition, migration, ageing populations, and risk factors like diabetes, silicosis, and smoking. The global resolve to end the TB epidemic reached a milestone when:
  • WHO's End TB Strategy was adopted by the World Health Assembly (WHA) in 2014
  • "Ending the TB epidemic" was included as a target in Sustainable Development Goal 3 (SDG-3) by the UN General Assembly in September 2015
(Park's Textbook of Preventive and Social Medicine, p. 237)

2. Evolution of Global TB Strategies

StrategyPeriodKey Focus
DOTS Strategy1994-2005Government commitment, passive case finding, standardized short-course chemotherapy, drug supply, monitoring
Stop TB Strategy2006-2015HIV-TB, MDR-TB, engaging public-private providers, civil society, research investment
End TB Strategy2016-2035Holistic mix of health, social interventions; universal access; prevention; new tools
Through DOTS and Stop TB, 43 million lives were saved globally between 2000-2014 and the MDG target of halting and reversing the TB epidemic was met. However, incidence rates did not fall sharply enough - demonstrating that treatment alone is insufficient to end the epidemic.
(Park's, p. 237-238)

3. The End TB Strategy (2016-2035)

3.1 Vision and Goal

VisionA world free of tuberculosis - zero deaths, zero disease, zero suffering due to tuberculosis
GoalEnd the global tuberculosis epidemic by 2035

3.2 Indicators, Milestones & Targets

Indicator2020 Milestone2025 MilestoneSDG 2030 TargetEnd TB 2035 Target
Reduction in TB deaths (vs 2015)35%75%90%95%
Reduction in TB incidence rate (vs 2015)20% (<85/100,000)50% (<55/100,000)80% (<20/100,000)90% (<10/100,000)
TB-affected families facing catastrophic costs0%0%0%0%
Key Note: TB elimination is defined as <1 case per million population - this is the long-term vision beyond 2035.
(Park's, p. 238; WHO End TB Strategy; PAHO Essentials Document)

4. Four Principles of the End TB Strategy

  1. Government stewardship and accountability, with monitoring and evaluation
  2. Strong coalition with civil society organizations and communities
  3. Protection and promotion of human rights, ethics and equity
  4. Adaptation of the strategy and targets at country level, with global collaboration
(Park's, p. 238)

5. Three Pillars and Ten Components of the End TB Strategy

PILLAR 1: Integrated, Patient-Centred Care and Prevention

  1. Early diagnosis of TB including universal drug susceptibility testing (DST); systematic screening of contacts and high-risk groups
  2. Treatment of all people with TB including drug-resistant TB; patient support
  3. Collaborative TB/HIV activities and management of comorbidities
  4. Preventive treatment of persons at high risk; vaccination against TB (BCG)

PILLAR 2: Bold Policies and Supportive Systems

  1. Political commitment with adequate resources for TB care and prevention
  2. Engagement of communities, civil society organizations, and public and private care providers
  3. Universal health coverage policy and regulatory frameworks for case notification, vital registration, quality and rational use of medicines, and infection control
  4. Social protection, poverty alleviation, and action on other determinants of TB

PILLAR 3: Intensified Research and Innovation

  1. Discovery, development, and rapid uptake of new tools, interventions, and strategies
  2. Research to optimize implementation and impact, and promote innovations
(Park's, p. 238; WHO End TB Strategy)

6. Four Barriers Identified by the End TB Strategy

The strategy explicitly identifies four key barriers to progress:
  1. Weak health systems
  2. Underlying determinants of TB - poverty, undernutrition, migration, ageing population; and risk factors such as diabetes, silicosis, and smoking
  3. Lack of effective tools (point-of-care diagnostics, shorter regimens, effective vaccine)
  4. Continuous unmet funding needs
(Park's, p. 238)

7. What Is Needed to Reach 2030 and 2035 Targets?

According to the WHO "End TB Essentials" document, achieving the 2030-2035 targets requires:
  1. Achievement of all 2025 milestones first
  2. Around 2025, availability of new tools that can substantially reduce risk of active TB among those with latent TB infection (LTBI) - including:
    • An effective post-exposure vaccine (prevents TB disease in already-infected individuals)
    • A safer and more effective treatment for LTBI
    • Better LTBI diagnostic tests
  3. After 2025, the TB incidence rate must fall at an average of 17% per year to hit the 2035 target
  4. Greatly expanded investment in research and development
This is where the concept of the "endgame" for TB becomes relevant - just as the Polio Endgame Strategy required targeted interventions for the final phase of eradication, TB requires a phased intensification with new tools.

8. The "Endgame" Concept in TB - Community Medicine Perspective

The term "endgame" in TB control refers to the final phase of elimination efforts where standard control measures alone are insufficient and targeted, high-impact interventions are needed to cross the last epidemiological threshold.

Key Endgame Interventions:

DomainEndgame Intervention
DiagnosisUniversal DST, rapid molecular diagnostics (CBNAAT/GeneXpert), AI-assisted CXR screening
TreatmentShorter all-oral MDR-TB regimens, Bedaquiline-containing regimens
Preventive Treatment (TPT)Treatment of LTBI in household contacts, PLHIV, high-risk populations
Community EngagementActive case finding (ACF) in tribal areas, slums, prisons, orphanages, old-age homes
VaccinesBCG for children; research into post-exposure vaccines (M72/AS01E candidate)
Social protectionNutritional support (Ni-kshay Poshan Yojana - Rs 500/month), transport allowance
Digital surveillanceNikshay platform for real-time case notification and treatment monitoring
Private sectorMandatory notification, engagement under NSP, support for adherence

9. India's Response - National Tuberculosis Elimination Programme (NTEP)

Background

India accounts for approximately 26% of the global TB burden. The programme was renamed from RNTCP (Revised National Tuberculosis Control Programme) to NTEP (National Tuberculosis Elimination Programme) in view of the End TB targets - signifying the shift from "control" to "elimination."

India's Ambitious Target

India aims to eliminate TB by 2025 - five years ahead of the global SDG 2030 target. This is a bold political commitment requiring accelerated decline of >10-15% annually.
(Park's, p. 482, 488)

NTEP Organogram (5 Levels)

  1. National level - Central TB Division (CTD), under AS&DG (RNTCP & NACO)
    • Supported by NTI Bengaluru, 6 National Reference Laboratories (NRL): NTI, NIRT Chennai, NITRD Delhi, JALMA Agra, RMRC Bhubaneswar, BMHRC Bhopal
  2. State level - State TB Cell (STC), State TB Officer (STO) under NHM
  3. District level - District TB Centre (DTC), District TB Officer (DTO)
  4. Sub-district level - TB Units (TU)
  5. Peripheral Health Institutions (PHI) - health facilities with at least one medical officer (PHCs, CHCs, dispensaries, referral hospitals)
(Park's, p. 482-483)

10. National Strategic Plan (NSP) 2017-2025 for TB Elimination

The NSP 2017-2025 builds on previous NSPs. It is a 3-year costed plan and 8-year strategic document.
Vision: TB-Free India with zero deaths, disease and poverty due to TB

Four Objectives (NSP):

  1. Find all DS-TB and DR-TB cases, with emphasis on private sector and high-risk populations
  2. Initiate and sustain all patients on appropriate treatment with patient-friendly systems and social support
  3. Prevent emergence of TB in susceptible populations
  4. Build and strengthen enabling policies, empowered institutions, human resources, and financial resources

Four Strategic Pillars of India's NSP - DTPB Framework:

PillarFull FormKey Actions
DDetectUniversal DST, CBNAAT scale-up, active case finding, private sector engagement
TTreatAll-oral regimens, Bedaquiline, Delamanid, patient-wise drug boxes, Nikshay
PPreventTB Preventive Treatment (TPT), BCG, infection control, nutrition (Ni-kshay Poshan Yojana)
BBuildHealth systems strengthening, HR capacity, digital tools, multi-sectoral partnerships
(Park's, p. 488)

NSP Targets for 2025 (India):

  1. 80% reduction in TB incidence (from 211 per lakh to 43 per lakh)
  2. 90% reduction in TB mortality (from 32 per lakh to 3 per lakh)
  3. 0% patients with catastrophic expenditure due to TB

Key Strategies under NSP:

  • Private sector engagement
  • Active case finding (ACF)
  • Drug-resistant TB case management
  • Addressing social determinants including nutrition
  • Robust surveillance (Nikshay system)
  • Community engagement and multi-sectoral approach

11. Key Programme Components in the Endgame Phase

a) TB Preventive Treatment (TPT)

Three major interventions available:
  1. TB Preventive Treatment (TPT) - given to high-risk individuals (PLHIV, household contacts, immunosuppressed)
  2. Prevention of transmission through infection prevention and control (IPC) measures
  3. BCG vaccination of children
Skin test/IGRA-negative contacts <5 years of age exposed to infectious cases are also candidates for TPT. (Harrison's, 22E)

b) Active Case Finding (ACF)

Campaign mode ACF is conducted in high-risk populations:
  • Tribal populations
  • Urban slums
  • Old-age homes, prisons, orphanages
  • Transit camps
  • Priority districts based on TB burden, HIV-TB co-infection, DR-TB prevalence

c) Universal Drug Susceptibility Testing (DST)

  • CBNAAT (GeneXpert) scaled to over 1,180 sites covering all districts
  • ~55% of notified TB cases offered universal DST (as of Q3 2019)

d) Drug-Resistant TB Management

  • Services initiated in Gujarat and Maharashtra in 2007, scaled nationally by 2013
  • Shorter MDR-TB regimens and Bedaquiline-containing regimens introduced in 2018
  • All-oral H mono/poly DR-TB regimens, shorter MDR-TB regimens, all-oral longer MDR-TB regimens available

e) Nikshay - Digital Surveillance Platform

  • Integrated digital platform for case notification to treatment outcome
  • All events (diagnosis, notification, treatment initiation, outcome) recorded
  • Integrated with DVDMS for drug supply chain management
  • Enables real-time monitoring at all levels

f) Ni-kshay Poshan Yojana

  • Nutritional support of Rs 500 per month to all notified TB patients
  • Addresses the social determinant of undernutrition which is both a risk factor and consequence of TB

12. COVID-19 Impact and Mitigation (Context of Disruption)

COVID-19 significantly disrupted TB services:
  • TB notifications fell >50% between end of March and late April 2020 in India following national lockdown
  • Reallocation of NTP staff, GeneXpert machines, and funding to COVID-19 response
  • Reduced outpatient visits for DS-TB and MDR/RR-TB
Mitigation strategies adopted:
  • Providing TB patients with at least a 1-month supply of anti-TB drugs
  • Home delivery of drugs
  • Enabling household members to collect drugs
  • Expanded remote digital support
(Park's, p. 237)

13. Community Medicine Framework - How End TB Maps to Core Public Health Principles

Public Health PrincipleEnd TB Strategy Application
Epidemiological surveillanceNikshay platform, drug resistance surveillance (DRS)
Health systemsNTEP organogram, universal health coverage, PHI engagement
Social determinantsNi-kshay Poshan Yojana, social protection, poverty alleviation
Primary, secondary, tertiary preventionBCG + TPT (primary), early diagnosis + ACF (secondary), treatment + rehabilitation (tertiary)
Community participationStrong coalition with civil society; community engagement as NSP strategy
Intersectoral coordinationMulti-sectoral: social protection, labour, immigration, justice sectors
Health equityReaching tribal, slum, prison, migrant populations through ACF
Research & evidenceNew tools: vaccines, shorter regimens, LTBI diagnostics

14. Recent Evidence (2024-2026)

  • A 2025 review on India's TB elimination strategies (Shah H et al., IJID Regions, 2025; PMID 39866845) specifically analyzed current strategies and areas for improvement in TB preventive treatment (TPT) - confirming TPT scale-up as a priority endgame intervention.
  • A 2025 review on the Western Pacific Regional Framework (Oh KH et al., IJTLD Open, 2025; PMID 39959399) provides critical reflection on regional End TB implementation - underscoring that adapting the global End TB Strategy to country contexts is essential for success.

15. Summary - The Endgame Logic

The "endgame" for TB requires thinking beyond standard DOTS-era treatment toward:
  1. Finding the missed millions - active case finding, universal DST, private sector engagement
  2. Treating LTBI - TPT to prevent the reservoir of infected individuals from becoming cases
  3. New tools - post-exposure vaccines, shorter regimens, point-of-care LTBI tests
  4. Social protection - eliminating catastrophic costs, nutritional support
  5. Digital innovation - Nikshay, AI-based tools, telemedicine for adherence
  6. Political commitment - high-level government stewardship at national and state level
  7. Multi-sectoral action - addressing poverty, undernutrition, and social determinants
The End TB Strategy is a 20-year programme (2016-2035) that represents the most ambitious and comprehensive attempt in history to move TB from epidemic disease toward elimination. India's NTEP, with its DTPB framework and NSP 2017-2025, operationalizes this global strategy with country-specific adaptations and a target five years ahead of the SDG deadline.
Key References:
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