Tuberculosis (TB) mortality rose during the COVID-19 pandemic, as did food insecurity worldwide. Undernourished individuals are at increased risk for incident TB disease and TB mortality. This study examines the impact of COVID lockdowns on the food security of households with TB in Southern India.
View Article and Find Full Text PDFUndernutrition-the leading risk factor for tuberculosis worldwide-is associated with impaired immunity, more extensive disease, delayed sputum conversion, and worse treatment outcomes, including mortality. In this Health Policy, we propose a comprehensive roadmap for integrating nutritional assessment, counselling, and support into tuberculosis treatment as part of person-centred care. At treatment initiation, we recommend standard nutritional assessment with anthropometric measurements and haemoglobin estimation, in addition to macronutrient and micronutrient support alongside nutritional counselling.
View Article and Find Full Text PDFObjective: To identify the barriers and facilitators of adolescent-friendly tuberculosis (TB) services among adolescents with drug-susceptible TB (DS-TB), as defined by the WHO's Adolescent-Friendly Services (AFS) framework, in Lima, Peru.
Design: We conducted in-depth interviews using semistructured interview guides. Data were analysed using the framework method, in which themes were mapped onto four of the five dimensions of care in the WHO's AFS framework: accessibility, acceptability, appropriateness and effectiveness.
BMC Glob Public Health
February 2025
The relationship between poverty and tuberculosis (TB) is well-documented, as socio-economic deprivation constitutes a risk factor that drives TB transmission and progression while hindering treatment adherence. Despite the importance of controlling for socio-economic status (SES) in TB research, no universally accepted tool exists to measure multidimensional poverty's impact on TB-affected households. This article provides an overview of existing SES assessment tools, including income-based measures, wealth indices like the Demographic and Health Survey (DHS) and the International Wealth Index (IWI), and multidimensional indices, such as the global Multidimensional Poverty Index (MPI).
View Article and Find Full Text PDFIntroduction: Undernourished persons with tuberculosis (TB) (PWTB) are at increased risk of mortality, treatment failure and relapse. Nutritional support for PWTB has the potential to mitigate the risk of undernutrition. However, given ethical concerns, well-powered randomised control trials of macronutrient support are unavailable to inform policymakers, clinicians and researchers about the impact of nutritional support.
View Article and Find Full Text PDFSuboptimal gestational weight gain (GWG) is associated with pregnancy complications and postpartum weight retention (PPWR). Little data exists about GWG and PPWR attitudes and beliefs in low-and-middle-income countries (LMICs) to inform interventions. We examined GWG and PPWR attitudes, beliefs, and intentions among pregnant people, with and without HIV, in Cape Town, South Africa.
View Article and Find Full Text PDFMalnutrition is the most common acquired cause of immunodeficiency worldwide. Nutritional deficiencies can blunt both the innate and adaptive immune response to pathogens. Furthermore, malnutrition is both a cause and consequence of infectious diseases.
View Article and Find Full Text PDFAm J Trop Med Hyg
October 2024
The burden of tuberculosis (TB) is disproportionate in tropical and subtropical regions, where parasitic coinfections are common. Given the significant geographical overlap between TB and intestinal parasitic infections, it is important to consider the implications of intestinal parasitic infections for the TB pandemic. Intestinal parasitic infections have been theorized to increase vulnerability to TB by altering the inflammatory milieu, inducing undernutrition that blunts the immune response, and affecting drug pharmacokinetics.
View Article and Find Full Text PDFTuberculosis (TB) is a leading infectious killer worldwide. We systematically searched the National Institutes of Health Research, Portfolio Online Reporting Tools Expenditures and Results (RePORTER) website to compare research funding for key TB comorbidities-undernutrition, alcohol use, human immunodeficiency virus, tobacco use, and diabetes-and found a large mismatch between the population attributable fraction of these risk factors and the funding allocated to them.
View Article and Find Full Text PDFGlob Public Health
January 2023
India has the highest global burden of tuberculosis (TB), accounting for a quarter of the worldwide TB disease incidence. Given the magnitude of India's epidemic, TB has enormous economic implications. Indeed, the majority of individuals with TB disease are in their prime years of economic productivity.
View Article and Find Full Text PDFBackground: Undernutrition is the leading risk factor for tuberculosis (TB) globally. Its impact on treatment outcomes is poorly defined.
Methods: We conducted a prospective cohort analysis of adults with drug-sensitive pulmonary TB at 5 sites from 2015-2019.
Front Immunol
October 2022
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View Article and Find Full Text PDFBackground: Most individuals exposed to (Mtb) develop latent tuberculosis infection (LTBI) and remain at risk for progressing to active tuberculosis disease (TB). Malnutrition is an important risk factor driving progression from LTBI to TB. However, the performance of blood-based TB risk signatures in malnourished individuals with LTBI remains unexplored.
View Article and Find Full Text PDFClin Infect Dis
September 2022
Background: Undernutrition is the leading cause of tuberculosis (TB) in India and is associated with increased TB mortality. Undernutrition also decreases quality of life and economic productivity.
Methods: We assessed the cost-effectiveness of providing augmented rations to undernourished Indians through the government's Targeted Public Distribution System (TPDS).
Glob Public Health
November 2022
India has made substantial advancements in reducing the burden of tuberculosis (TB), but persons living with active TB (PLWATB) still face myriad challenges in seeking and receiving care, including TB-related stigma. To meet the END TB targets, it is critical that PLWATB engage in care and are able to adhere to treatment. This qualitative study aimed to understand TB-related stigma (perceived, enacted, and internalised) and possible interventions to reduce stigma in Puducherry and Tamil Nadu, India.
View Article and Find Full Text PDFBackground: Comorbidities such as undernutrition and parasitic infections are widespread in India and other tuberculosis (TB)-endemic countries. This study examines how these conditions as well as food supplementation and parasite treatment might alter immune responses to Mycobacterium tuberculosis (Mtb) infection and risk of progression to TB disease.
Methods: This is a 5-year prospective clinical trial at Jawaharlal Institute of Post Graduate Medical Education and Research in Puducherry, Tamil Nadu, India.
Background: Undernutrition impairs immunity to Mycobacterium tuberculosis and is a risk factor for tuberculosis disease (TB). We aim to investigate if severe undernutrition affects the tuberculin skin test (TST) response among household contacts (HHCs) of pulmonary TB cases.
Methods: We analyzed data from HHCs (> five years) of pulmonary TB cases in Southern India.
Background: Gene expression signatures have been used as biomarkers of tuberculosis (TB) risk and outcomes. Platforms are needed to simplify access to these signatures and determine their validity in the setting of comorbidities. We developed a computational profiling platform of TB signature gene sets and characterized the diagnostic ability of existing signature gene sets to differentiate active TB from LTBI in the setting of malnutrition.
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