ArticlePublic health action2026
Improving tuberculosis contact investigation in Chhattisgarh, India: early findings from operational research.
Article in Public health action, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Mentorship for research on TB in India: a course on Public Health Implementation Strengthening and Operational Research (MPHISOR).Public health action · 2026Article
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12 authors.
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Abstract
settingsChhattisgarh state, central India, implemented measures to improve household contact investigation (HCI) monitoring and decentralising HCI to nearest primary care facility.
objectivesComparing bacteriologically confirmed adults (≥18 years) with tuberculosis (TB) from October to December in 2023 and 2025, to assess changes in undergoing HCI, TB diagnosis, and TB preventive therapy (TPT) initiation (overall and children [<5 years]) after introducing HCI monitoring indicators and decentralising HCI to primary care.
designOperational research using cross-sectional descriptive analysis of programme data.
resultsDistricts (n = 33) reporting monthly HCI indicators increased from 2 (6%) in October 2025 to 20 (60%) in January 2026. Notifications dropped from 4,221 to 3,196 and diagnosis through sputum microscopy from 1,315 to 51; while diagnosis by rapid molecular tests increased from 2,290 to 2,774. Marginal improvements occurred in current treatment facility as primary peripheral health institutes (46%-54%), undergoing HCI (75%-82.5%), average household contact identified per person with TB (2.8-3.1), and household contacts initiated on TPT (64%-70%). These changes were not observed among child (<5 years) contacts. TB diagnosis among contacts did not improve (overall and children [<5 years]).
conclusionEarly findings for HCI monitoring are encouraging. However, prioritising child (<5 years) contacts and bacteriological confirmation at primary care level is urgently needed.
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