Items tagged with TB epidemiology
TB spread 'depends on moisture in the air' (post)
[NEW DELHI] Climatic factors such as dew point temperature, relative humidity and atmospheric temperature that affect water droplet formation are crucial for the survival and spread of tuberculosis (TB), an airborne infectious disease, say researchers.
Undernutrition accounts for a large number of TB cases in India, says study (post)
Undernutrition accounts for a much bigger share of India’s counts of new tuberculosis patients than hitherto assumed, according to a recent study published in the Journal of Clinical Tuberculosis and Other Mycobacterial Diseases. The researchers have estimated that undernutrition contributes to 9,02,000 of India’s 2.64 million annual new TB cases, 40% higher than the earlier estimate of 6,55,000 cases attributed to undernourishment.
TB surveillance in Romania among vulnerable risk groups between 2015 and 2017 (post)
Romania has the highest TB burden in the European Union/European Economic Area (EU/EEA) comprising almost a quarter of the reported patients in 2017, and a TB notification rate six times higher than the EU/EEA average.
People with CMV have increased risk for TB, review finds (post)
The results of a systematic review and meta-analysis suggest there is an increased risk for tuberculosis among people with cytomegalovirus infection, researchers reported in The Lancet.
Incident TB in one in three people starting antiretroviral therapy in Thailand (post)
A study from Thailand has found that the incidence of tuberculosis was remarkably high among people with HIV during the first year on antiretroviral therapy, and thereafter, decreased significantly until reaching levels comparable to those in the Thai general population after ten years. The study, published in a recent issue of the Journal of the International AIDS Society, is important as it is most probably the first to report such data from a high TB/HIV burden country in Asia.
WHO convenes experts to review methods for estimating TB disease burden (post)
A meeting of a subgroup of the World Health Organization (WHO)’s Global Task Force on TB Impact Measurement was held in Geneva, Switzerland on 11-12 May 2022. The meeting focused on an up-to-date review of methods used by WHO to produce TB disease burden estimates. The meeting brought together experts in statistics, modelling and epidemiology from academia, government institutions from high TB burden countries, other technical partners and funding bodies.
HIV control approaches may not work for TB: lessons from South Africa and Zambia (post)
Tuberculosis (TB) is one of the most deadly infectious diseases. Around 9.9 million people around the world fell ill with the disease in 2020 and an estimated 1.5 million people died.
Pakistan’s TB incidence is 259 per 100,000 population: Survey (post)
ISLAMABAD, Jun 09: Pakistan’s tuberculosis incidence is 259 per 100,000 population and an HIV prevalence rate is 0.12 per 1,000 population in 2020.
25 years of surveillance of drug-resistant tuberculosis: achievements, challenges, and way forward (post)
A personal view, published in The Lancet Infectious Diseases, presented the achievements, challenges, and way forward for the oldest and largest global antimicrobial resistance surveillance system. Hosted by the World Health Organization since 1994, the Global Project on Anti-Tuberculosis Drug Resistance Surveillance has served as a platform for the evaluation of the trends in TB drug resistance for over 25 years at country, regional, and global levels.
Dartmouth’s Geisel School of Medicine team finds increased rate of TB infection among adolescents in Tanzania (post)
Published today in PLOS ONE, “Serial T-SPOT.TB responses in Tanzanian adolescents: transient, persistent and irregular conversions”, investigators from the Geisel School of Medicine and Muhimibili University of Health and Allied Sciences (MUHAS) report high rates of new tuberculosis (TB) infection among adolescents in Tanzania. Multiple blood tests for TB infection were conducted over three years in 650 schoolchildren age 13-15 and showed that the risk of acquiring new TB infection was 3 percent per year. In addition, by performing six or more blood tests on each volunteer with an interferon gamma release assay (IGRAs) the study team identified new patterns of transition between positive and negative IGRA tests for TB infection.
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