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
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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 goal of this addendum is to help management and staff
minimize the risk of TB transmission at facilities in resource limited settings in which a.) HIV-infected persons receive diagnosis, care
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, treatment,
and/or support, and b.) there is a high prevalence of HIV infection, both known
and undiagnosed, in settings such as prisons, jails, other
detention centers, and drug rehabilitation centers.
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Undernutrition increases the risk of tuberculosis (TB) and in turn TB can lead to malnutrition. Undernutrition is therefore highly prevalent among people with
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TB. It has been demonstrated that undernutrition is a risk factor for progression from TB infection to active TB disease and that undernutrition at the time of diagnosis of active TB is a predictor of increased risk of death and TB relapse. However, the evidence concerning the effect of nutritional supplementation on TB prevention and health outcomes among people with TB had not previously been systematically reviewed. This guideline provides guidance on the principles and recommendations for nutritional care and support of patients with TB as part of their regular TB care
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6 July 2021. The “WHO consolidated guidelines on tuberculosis. Module 3: Diagnosis - Rapid diagnostics for tuberculosis detection 2021 update” is the latest document replacing the one issued in 2020. Three new nucleic acid amplification test (NA
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AT) classes are endorsed by WHO and included in the latest consolidated guideline
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Scientific advice
Prevention and control of communicable diseases in prison settings.
6 July 2021. Three new nucleic acid amplification test (NAAT) classes are endorsed by WHO and included.
The latest operational handbook includes the new classes recommended by WHO. It aims at facilitating the implementation of the WHO recommendations by the Member States, technical partners, and ot
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hers involved in managing patients with TB and DR-TB. The operational handbook provides practical information on existing and new tests recommended by WHO, step-by-step advice on implementing and scale-up testing to achieve local and national impact and lastly, model diagnostic algorithms, which are updated to incorporate the latest recommendations. An overview of budgetary considerations and information sheets on each of the newly recommended tests is provided.
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Guidance on TB and TB/HIV prevention, diagnosis, treatment and care in the workplace
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
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is followed by key figures for the region, the role of WHO in country support and, recognizing the importance 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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This guidance provides an overview of interventions to improve early diagnosis of TB and treatment completion in these populations, as well as factors to consider when developing programmes for heal
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th communication, awareness and education, and programme monitoring and evaluation
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Consensus -based guidelines for diagnosis, prevention and treatment of tuberculosis in children and adolescents
People living with HIV who have a low CD4 count are at a much higher risk of falling ill from TB infection than HIV negative people.
It is important to offer both HIV testing to TB patients an
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d TB diagnosis in HIV patients. Early detection and effective treatment are essential to preventing TB-associated deaths.
WHO and UNAIDS have strongly advised countries to ensure that HIV programmes integrate regular TB screening, preventive therapy and early treatment.
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The WHO standard: Universal access to rapid tuberculosis diagnostics sets benchmarks to achieve universal access to WHO-recommended rapid diagnostics (WRDs), increase bacteriologically confirmed tuberculosis and drug resistance detection, and reduce the time to
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diagnosis. WHO-recommended rapid diagnostics are highly accurate, cost-effective, reduce the time to treatment initiation, and impact patient-important outcomes.
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