WHO/CDS/TB/99.272
Distr.: General, Original: French
Preventing tuberculosis infection from progressing to tuberculosis disease is a crucial component of the goal to eliminate tuberculosis. When deciding on the use of tuberculosis preventive therapy among household contacts, policy makers regularly ask questions, such as whether tuberculosis preventiv...e therapy is effective, safe, and feasible in a programme setting and what it will cost. For contact management and tuberculosis preventive therapy for multidrug-resistant and rifampicin-resistant tuberculosis, studies from high-income and low-income countries have shown feasibility, safety, and effectiveness.
However, there is scarce information on the cost of tuberculosis preventive therapy for multidrug-resistant and rifampicin-resistant tuberculosis. In The Lancet Global Health, Peter Dodd and colleagues show that household contact management strategies are cost-effective even in low-income and middle-income countries, which has important policy implications for achieving the END TB Strategy goals.
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Tuberculosis profile: Peru
Tuberculosis profile: Colombia
Tuberculosis profile: Brazil
J Bras Pneumol. 2022;48(2):e20220082
The spread of Severe Acute Respiratory Syndrome - Coronavirus 2 (SARS-CoV-2) continues to progress, causing damage in several countries of the world due to its rapid transmissibility and significant mortality rates, despite government measures to contain its tra...nsmission, such as movement control, the closing of schools, bans on travel and public gatherings, the mandatory use
of masks, and hand hygiene. The coronavirus disease (COVID-19) has clinical manifestations that are similar to those found in other infections also transmitted through the airways, such as pulmonary tuberculosis (TB) Although TB is a global health problem, it is a curable disease, with affordable treatment and prevention. Nonetheless, it remains one of the leading
causes of death from a single infectious agent worldwide, a situation threatened by COVID-19.
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Three classess of tests are now recommended in the latest consolidated guideles on tests for tuberculosis infection. It includes for the first-time a new class of Mycobacterium tuberculosis antigen-based skin tests (TBSTs), and the two existing classes of tests: the tuberculin skin test (TST) and t...he interferon-gamma release assays (IGRAs).
IGRAs and TBSTs use Mycobacterium tuberculosis complex specific antigens and represent a significant advancement to TST which has been used for over half a century.
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The Practical manual on laboratory strengthening, 2022 update provides practical guidance on implementation of WHO recommendations and best practices for TB laboratory strengthening. It is an updated version of the GLI Practical Guide to Laboratory Strengthening published in 2017 and provides the la...test practical guidance on use of newly recommended diagnostics as well as guidance in key technical areas, including quality assurance and quality management systems, specimen collection and registration, procurement and supply-chain management, diagnostic connectivity, biosafety, data management, human resources, strategic planning, and model algorithms. The key changes are:
inclusion of recent or updated WHO recommendations for tests to diagnose TB and detect drug resistance;
alignment with the latest WHO critical concentrations for phenotypic drug-susceptibility testing (DST) and the new definitions of pre-XDR-TB and XDR-TB;
updated information on building quality-assured TB testing and management capacity using the Stepwise Laboratory Quality Improvement Process Towards Accreditation (SLIPTA) approach (Score-TB package1);
updated information on assessing, analysing and optimising TB diagnostic networks; and
updated information on the use of next-generation sequencing (NGS) to detect mutations associated with drug resistance for surveillance purposes.
The document also provides references to resources and tools relevant for work on laboratory strengthening.
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Estimates of government spending and development assistance for tuberculosis exist, but less is known
about out-of-pocket and prepaid private spending. We aimed to provide comprehensive estimates of total spending on
tuberculosis in low-income and middle-income countries for 2000–17.
En la reunión de alto nivel de las Naciones Unidas del 2018 se fijó el objetivo de tratar al menos a 40 millones de personas con tuberculosis (TB) entre el 2018 y el 2022; sin embargo, en el 2021 ese objetivo solo se había cumplido en un 66%. Las pruebas diagnósticas son fundamentales para logra...r el objetivo, pero constituyen un eslabón débil en la continuidad de la atención. Las pruebas de diagnóstico rápido recomendadas por la Organización Mundial de la Salud (PDRO) son sumamente precisas, acortan el tiempo hasta el inicio del tratamiento, influyen en resultados importantes para el paciente y son costo-eficaces. Aunque el objetivo para el año 2025 es que todos los pacientes notificados se hagan inicialmente una PDRO, en el 2021 tan solo el 38% se hizo una PDRO como prueba inicial, y se determinó que el acceso a las pruebas diagnósticas era un problema crítico. Una de las principales consecuencias del uso insuficiente de las PDRO es la gran brecha en la detección de la farmacorresistencia. La presente Norma de la OMS: Acceso universal a las pruebas de diagnóstico rápido de la tuberculosis se basa en las directrices de la OMS y en el manual operativo conexo
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Previous advocacy efforts have achieved tangible goals in terms garnering political commitments
to increase financing for TB—as seen at the 2018 UN High-Level Meeting on TB. The challenge
now is to ensure that these commitments are actually met within a global biomedical research
ecosystem that... is designed and incentivized to prioritize the health needs of wealthy populations
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This brief update on tuberculosis (TB) in the African region covers the state of TB in the WHO African region, strategic priorities and targets and the impact of COVID-19 on essential services. This is followed by key figures for the region, the role of WHO in country support and, recognizing the im...portance of diagnosis and drug susceptibility testing, a focus onstrengthening laboratory networks and the regional laboratory and diagnostic objectives. A brief update of the state of the science and how this is funded across the African region is provided, before closing with challenges and opportunities,strategic directions and a brief discussion of funding concerns. Discussions around the drivers of the disease, and issues of the poverty, inequality and stigma that continue to plague those living with TB are fully recognized, but are outside the scope of this report.
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Tuberculosis (TB) and particularly drug-resistant TB continue to represent major public health threats in the WHO European Region. This document details the Tuberculosis action plan for the WHO European Region 2023–2030 as well as its monitoring and evaluation framework and outlines the visi...on and strategic actions for the TB response in the Region for this period. Developed through a Region-wide participatory consultation process, the TB action plan aims to support Member States to implement their national responses to the TB epidemic and provides strategies to enable the Region to reach the global End TB Strategy targets as well as aligning to the priorities of the European Programme of Work, 2020–2025 – “United Action for Better Health in Europe”.
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The World Health Organization (WHO) Global Tuberculosis Report 2021 estimated that, in 2020, tuberculosis (TB) was the second most common infectious disease killer after coronavirus disease (COVID-19) and the 13th leading cause of death (1). Twenty-five per cent (25%) of the world’s population has... latent TB infection, which can develop into disease. In 2020, WHO estimated that 9.9 million people fell ill with TB, but only about 5.8 million (60%) were diagnosed, reported and treated, an 18% fall from 7.1 million in 2019. WHO also estimates that, between 2019 and 2020, global TB mortality increased from 1.2 to 1.5 million, a 5.6% increase
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The World Health Organization (WHO) Global Tuberculosis Report 2021 estimated that, in 2020, tuberculosis (TB) was the second most common infectious disease killer after coronavirus disease (COVID-19) and the 13th leading cause of death (1). Twenty-five per cent (25%) of the world’s population has... latent TB infection, which can develop into disease. In 2020, WHO estimated that 9.9 million people fell ill with TB, but only about 5.8 million (60%) were diagnosed, reported and treated, an 18% fall from 7.1 million in 2019. WHO also estimates that, between 2019 and 2020, global TB mortality increased from 1.2 to 1.5 million, a 5.6% increase
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