About six to seven million people worldwide, mostly in Latin America, are estimated to be infected with
Trypanosoma cruzi, the parasite that causes Chagas disease (WHO data from 2021). Chagas disease is
found mainly in endemic areas of 21 Latin American countries. Chagas disease was once entirely
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confined to rural areas but in the last decades, due to population movements, most infected people live
in urban settings and the disease has spread to other continents. The burden of disease is due to its
chronic progression with people still suffering years later after initial infection.
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The World Health Organization (WHO) and the global community of countries, partners, donors, technical experts, scientists and field implementation teams continue to work towards the ultimate goal of a world free of the burden of neglected tropical diseases (NTDs).
Revised and expanded version of the Guidelines
Epidemiological Update
Dengue
7 February 2020
Situation summary
In the Region of the Americas, between epidemiological week (EW) 1 and EW 521 of 2019, a total of 3,139,335 cases of dengue have been reported (321.58 cases per 100,000 population), including 1,538 deaths. Of the total cases, 1,367,...353 (43.6%) were laboratory-confirmed and 28,169 (0.9%) were classified as severe dengue. The case-fatality rate was 0.049%.
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A clear understanding of the knowledge, attitudes and practices (KAP) of a particular community is necessary in order to improve control of human African trypanosomiasis (HAT).New screening and diagnostic tools and strategies were introduced into South Sudan, as part of integrated delivery of primar...y healthcare. Knowledge and awareness on HAT, its new/improved screening and diagnostic tools, the places and processes of getting a confirmatory diagnosis and treatment are crucial to the success of this strategy.
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Sleeping sickness is controlled by case detection and treatment but this often only reaches less than 75% of the population. Vector control is capable of completely interrupting HAT transmission but is not used because of expense. We conducted a full scale field trial of a refined vector control tec...hnology. From preliminary trials we determined the number of insecticidal tiny targets required to control tsetse populations by more than 90%. We then carried out a full scale, 500 km2 field trial covering two HAT foci in Northern Uganda (overall target density 5.7/km2). In 12 months tsetse populations declined by more than 90%. A mathematical model suggested that a 72% reduction in tsetse population is required to stop transmission in those settings. The Ugandan census suggests population density in the HAT foci is approximately 500 per km2. The estimated cost for a single round of active case detection (excluding treatment), covering 80% of the population, is US$433,333 (WHO figures). One year of vector control organised within country, which can completely stop HAT transmission, would cost US$42,700. The case for adding this new method of vector control to case detection and treatment is strong. We outline how such a component could be organised.
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Human African trypanosomiasis (HAT) has been an alarming global public health issue. The disease affects mainly poor and marginalized people in low-resource settings and is caused by two subspecies of haemoflagellate parasite, Trypanosoma brucei and transmitted by tsetse flies. Progress made in HAT ...control during the past decade has prompted increasing global dialogue on its elimination and eradication. The disease is targeted by the World Health Organization (WHO) for elimination as a public health problem by 2020 and to terminate its transmission globally by 2030, along-side other Neglected Tropical Diseases (NTD). Several methods have been used to control tsetse flies and the disease transmitted by them. Old and new tools to control the disease are available with constraints.
Currently, there are no vaccines available. Efforts towards intervention to control the disease over the past decade have seen considerable progress and remarkable success with incidence dropping progressively, reversing the upward trend of reported cases. This gives credence in a real progress in its elimination. This study reviews various control measures, progress and a highlight of control issues, vector and parasite barriers that may have been hindering progress towards its elimination.
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An interregional meeting on leishmaniasis among neighbouring endemic
countries in the Eastern Mediterranean, African and European regions was organized by the World Health Organization (WHO) Regional Office for the Eastern
Mediterranean in Amman, Jordan, from 23 to 25 September 2018. The meeting w...as attended by representatives from the health ministries of Albania, Georgia, Greece, Iran (Islamic Republic of), Iraq, Jordan, Lebanon, Morocco, Pakistan, Saudi Arabia, Sudan, Syrian Arab Republic and Tunisia. Representatives from Afghanistan, Algeria and Libya were unable to attend. The Secretariat comprised staff from WHO headquarters, WHO regional offices in the Eastern Mediterranean, Africa and Europe, WHO country offices in Iraq, Pakistan, Syrian Arab Republic and Yemen, and WHO temporary advisors from Spain and Tunisia.
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The objectives of the meeting were:
1. To update the current status of the disease transmission, country capacities and plans for tackling the disease.
2. To understand the epidemiology including disease distribution and risk, the models
for estimating under-detection, the geographical variati...ons of in clinical presentation,
the roles of domestic and wild animal reservoirs and the subsequent different
transmission patterns and control approaches, including vector control.
3. To update current research and development efforts for improving diagnostic and
treatment tools.
4. To define the goals for achieving the control of r-HAT, the need for a multisectoral
approach and to discuss the strategy for controlling r-HAT and the coordination
mechanisms.
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The desired impact of the OH JPA is a world better able to prevent, predict, detect and
respond to health threats and improve the health of humans, animals, plants and the
environment while contributing to sustainable development. The OH JPA aims to work
towards this vision in the following way:
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• Provide a framework for action and propose a set of activities the four organizations
can offer together to advance and sustainably scale up One Health.
• Provide upstream policy and legislative advice and technical assistance, to help
set national targets and priorities across the sectors for the development and
implementation of One Health legislation, initiatives and programmes.
• Take stock of existing cross-sectoral global and regional initiatives around One
Health, identify and advise on synergies and overlaps, and support coordination.
• Mobilize and make better use of resources across sectors, disciplines and
stakeholders.
• The OH JPA is guided by a theory of change and makes use of One Health principles
to strengthen collaboration, communication, capacity building and coordination
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The objective of this concept note and the framework it outlines is the elimination of a group of CDs and the negative health effects they generate, which together create a tangible burden on affected individuals, their families and communities, and on health care systems throughout the Region. Thou...gh there is no unified consensus on the best measures to use for the public’s health and a nation’s epidemiologic situation, it is common for the disease burden to be measured by disease rates (incidence, prevalence, etc.), disease-specific death rates, comparative morbidity and mortality rates, geographic distribution, and disability-adjusted life years (DALYs). The current epidemiological situation, including data on disease rates or geographic distribution for the diseases in Table 1, is discussed below in Section 4. Hotez et al. (2008) were the first to review and compare the burden of DALYs in Latin America and the Caribbean—for NTDs, HIV/AIDS, malaria, and TB—as it existed about 10 years ago. Though the regional burden of TB, malaria, and neglected infectious diseases (NIDs) is somewhat less than it was 10 years ago, work (and schooling) continue to be lost to illness and premature death or disability, and the need for stepping up disease elimination efforts is evident in all communities living in vulnerable conditions....
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O objetivo desta nota conceitual e a estrutura que essa descreve tratam da eliminação de um grupo de DT e abordam os efeitos negativos para a saúde que essas DT causam (as doenças constam da Tabela 1 abaixo), e que, juntos, criam uma carga tangível sobre os indivíduos afetados, suas famílias,... as comunidades e os sistemas de atenção de saúde por toda a Região.
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Frequently Asked Questions on Visceral Leishmaniasis
In the Indian state of Bihar, visceral leishmaniasis (VL) is a major public health issue that has been aggravated by the rising incidence of new Human immunodeficiency virus (HIV) infections. In endemic areas, the risk of VL infections in patients living with HIV (PLHIV) is higher. It is important t...o investigate the disease-related knowledge, attitude, and practices (KAP) of PLHIV in Bihar in order to monitor HIV/VL co-infection. Adequate knowledge, a positive attitude, and good practices for VL control are essential to stamp out the disease. This study investigated the KAP towards VL in HIV patients attending antiretroviral therapy (ART) clinic at ICMR-RMRIMS, Patna.
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Improving the survival chances and quality of life of women, newborns, and children remains an urgent global challenge. Since 2012, substantial progress has been made in reducing maternal and under-5 deaths, and a only handful of countries are on target to meet the SDG targets in 2030. Yet, 5 millio...n children still die each year under the age of 5, and nearly half of those are newborns less than a month old. Worse still, the global maternal mortality ratio is going in the wrong direction.
A Decade of Progress and Action for the Future will examine the tenacity and innovation that helped us make gains, the lessons learned through monitoring, country-led adaptation and leadership, analysis, and reflection, as well as the approaches we must take to reinvigorate the momentum and global commitment to improving maternal and child survival. Increasing coverage, strengthening the quality of care, and enhancing equity will be tantamount to our global progress.
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Diabetes mellitus (DM) is a global epidemic with significant morbidity. Diabetic
retinopathy (DR) is the specific microvascular complication of DM and affects 1 in 3 persons with DM. DR remains a leading cause of vision loss in working adult populations. Patients with severe levels of DR are report...ed to have poorer quality of life and reduced levels of physical, emotional, and social well-being, and they utilize more health care resources.
Epidemiological studies and clinical trials have shown that optimal control of blood glucose, blood pressure, and blood lipids can reduce the risk of developing retinopathy and slow its progression. Timely treatment with laser photocoagulation, and increasingly, the appropriate use of intraocular administration of vascular endothelial growth factor (VEGF) inhibitors can prevent visual loss in vision- threatening retinopathy, particularly diabetic macular edema (DME). Since visual loss may not be present in the earlier stages of retinopathy, regular screening of persons with diabetes is essential to enable early intervention.
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World Health Organization. (2021). Minimum technical standards and recommendations for reproductive, maternal, newborn and child health care for emergency medical teams. World Health Organization.
National Guidelines on Nutrition, Care, Support, and Treatment (NCST) for Adolescents and Adults
These guidelines are intended to:
• Establish a consistent set of nutrition interventions and recommendations aimed at managing and preventing undernutrition and overnutrition in adolescents and ad...ults, with a focus on people with HIV/AIDS and tuberculosis (TB) patients.
• Provide simple and clear guidance to service providers and managers on how to implement the nutrition interventions and recommendations at the various health care delivery contact points.
• Provide a framework for policymakers and development partners to use when planning nutrition interventions for adolescent and adults.
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Training in monitoring and epidemiological assessment of mass drug administration for eliminating lymphatic filariasis: learners’ guide. World Health Organization.
Forests, trees and green spaces, hereinafter ‘forests and trees’ for short, provide multiple goods and services that contribute to human health. These include medicines, nutritious foods and other non-wood forest products (NWFPs). Globally, at least 3.5 billion people use NWFPs, including medici...nal plants, which are particularly important for vulnerable groups and Indigenous Peoples and local communities (IPLCs).
During periods of crises, such as the COVID-19 pandemic, demand for forest products typically increases amongst these groups. Forests and trees also contribute to better health by playing a role in climate change
mitigation and adaptation, contributing to regulating the carbon cycle, but also moderating the micro-climate, filtering pollutants from the air and protecting settlements against the effects of extreme events such as droughts and flash floods.
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