Assessing Tuberculosis Prevalence Through Population-based Surveys

Assessing Tuberculosis Prevalence Through Population-based Surveys PDF

Author: Who Regional Office for the Western Pacific

Publisher: World Health Organization

Published: 2007

Total Pages: 249

ISBN-13: 9290613149

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This publication provides countries with practical guidelines for planning population-based surveys to estimate the prevalence of tuberculosis (TB) at a national level. TB prevalence surveys yield useful information in areas where notification data obtained through routine surveillance are incomplete, or of unproven accuracy, and in areas with an estimated TB prevalence of more than 100 per 100 000. These surveys are used to evaluate the performance of the TB program, and to assess trends over time. To achieve this objective, data are collected through standards methods in a well-defined study population. This document is meant to provide information on the core survey methods, including diagnostic tests for TB, screening strategies, and case definitions. The target audience includes TB experts and advisers at national and international levels, and investigators involved in prevalence surveys.

National tuberculosis prevalence surveys 2007-2016

National tuberculosis prevalence surveys 2007-2016 PDF

Author:

Publisher: World Health Organization

Published: 2021-05-03

Total Pages: 291

ISBN-13: 9240022430

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Between 2007 and the end of 2016, 24 countries implemented a total of 25 national tuberculosis prevalence surveys using methods recommended by WHO. The 25 surveys consisted of 13 in Asia and 12 in Africa. Collectively, survey findings have informed the policies, plans and programmatic actions needed to address gaps in TB diagnosis and treatment and to reduce the burden of TB disease. Finally, the 24 countries have a robust baseline for assessing progress towards new global targets set in the UN Sustainable Development Goals (2016–2030) and WHO’s End TB Strategy (2016–2035). The methods, results, successes achieved, challenges faced and lessons learned from the 25 surveys were comprehensively documented in the book. We viewed such a product as a global public good, that should be available to all those with an interest in and commitment to using survey findings, now and in the future e.g. academics, donors, public health officers and national TB programmes. As with implementation of the 25 surveys themselves, the book is the result of a major global, regional and national collaborative and collective effort, with more than 450 contributors from all around the world.

Adaptive Sampling

Adaptive Sampling PDF

Author: Steven K. Thompson

Publisher: Wiley-Interscience

Published: 1996-06-07

Total Pages: 296

ISBN-13:

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Offering a viable solution to the long-standing problem of estimating the abundance of rare, clustered populations, adaptive sampling designs are rapidly gaining prominence in the natural and social sciences as well as in other fields with inherently difficult sampling situations. In marked contrast to conventional sampling designs, in which the entire sample of units to be observed is fixed prior to the survey, adaptive sampling strategies allow for increased sampling intensity depending upon observations made during the survey. For example, in a survey to assess the abundance of a rare animal species, neighboring sites may be added to the sample whenever the species is encountered during the survey. In an epidemiological survey of a contagious or genetically linked disease, sampling intensity may be increased whenever prevalence of the disease is encountered. Written by two acknowledged experts in this emerging field, this book offers researchers their first comprehensive introduction to adaptive sampling. An ideal reference for statisticians conducting research in survey designs and spatial statistics as well as researchers working in the environmental, ecological, public health, and biomedical sciences. Adaptive Sampling: Provides a comprehensive, fully integrated introduction to adaptive sampling theory and practice Describes recent research findings Introduces readers to a wide range of adaptive sampling strategies and techniques Includes numerous real-world examples from environmental pollution studies, surveys of rare animal and plant species, studies of contagious diseases, marketing surveys, mineral and fossil-fuel assessments, and more

Disease Control Priorities, Third Edition (Volume 6)

Disease Control Priorities, Third Edition (Volume 6) PDF

Author: King K. Holmes

Publisher: World Bank Publications

Published: 2017-11-06

Total Pages: 506

ISBN-13: 1464805253

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Infectious diseases are the leading cause of death globally, particularly among children and young adults. The spread of new pathogens and the threat of antimicrobial resistance pose particular challenges in combating these diseases. Major Infectious Diseases identifies feasible, cost-effective packages of interventions and strategies across delivery platforms to prevent and treat HIV/AIDS, other sexually transmitted infections, tuberculosis, malaria, adult febrile illness, viral hepatitis, and neglected tropical diseases. The volume emphasizes the need to effectively address emerging antimicrobial resistance, strengthen health systems, and increase access to care. The attainable goals are to reduce incidence, develop innovative approaches, and optimize existing tools in resource-constrained settings.

Disease and Mortality in Sub-Saharan Africa

Disease and Mortality in Sub-Saharan Africa PDF

Author: Dean T. Jamison

Publisher: World Bank Publications

Published: 2006-01-01

Total Pages: 414

ISBN-13: 0821363980

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Current data and trends in morbidity and mortality for the sub-Saharan Region as presented in this new edition reflect the heavy toll that HIV/AIDS has had on health indicators, leading to either a stalling or reversal of the gains made, not just for communicable disorders, but for cancers, as well as mental and neurological disorders.

Tuberculosis in the Workplace

Tuberculosis in the Workplace PDF

Author: Institute of Medicine

Publisher: National Academies Press

Published: 2001-05-15

Total Pages: 334

ISBN-13: 0309171253

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Before effective treatments were introduced in the 1950s, tuberculosis was a leading cause of death and disability in the United States. Health care workers were at particular risk. Although the occupational risk of tuberculosis has been declining in recent years, this new book from the Institute of Medicine concludes that vigilance in tuberculosis control is still needed in workplaces and communities. Tuberculosis in the Workplace reviews evidence about the effectiveness of control measuresâ€"such as those recommended by the Centers for Disease Control and Preventionâ€"intended to prevent transmission of tuberculosis in health care and other workplaces. It discusses whether proposed regulations from the Occupational Safety and Health Administration would likely increase or sustain compliance with effective control measures and would allow adequate flexibility to adapt measures to the degree of risk facing workers.

Systematic Screening for Active Tuberculosis

Systematic Screening for Active Tuberculosis PDF

Author: World Health Organization

Publisher: World Health Organization

Published: 2013

Total Pages: 140

ISBN-13: 9241548606

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There have been calls to revisit the experiences of TB screening campaigns that were widely applied in Europe and North America in the mid-20th century, as well as more recent experiences with TB screening in countries with a high burden of the disease, and to assess their possible relevance for TB care and prevention in the 21st century. In response, WHO has developed guidelines on screening for active TB. An extensive review of the evidence has been undertaken. The review suggests that screening, if done in the right way and targeting the right people, may reduce suffering and death, but the review also highlights several reasons to be cautious. As discussed in detail in this book, there is a need to balance potential benefits against the risks and costs of screening; this conclusion is mirrored by the history of TB screening. This publication presents the first comprehensive assessment by WHO of the appropriateness of screening for active TB since the recommendations made in 1974 by the Expert Committee. However, the relative effectiveness and cost effectiveness of screening remain uncertain, a point that is underscored by the systematic reviews presented in this guideline. Evidence suggests that some risk groups should always be screened, whereas the prioritization of other risk groups as well as the choice of screening approach depend on the epidemiology, the health-system context, and the resources available. This book sets out basic principles for prioritizing risk groups and choosing a screening approach; it also emphasizes the importance of assessing the epidemiological situation, adapting approaches to local situations, integrating TB screening into other health-promotion activities, minimizing the risk of harm to individuals, and engaging in continual monitoring and evaluation. It calls for more and better research to assess the impact of screening and to develop and evaluate new screening tests and approaches.

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