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Parasites & Vectors volume 11, Article number: 264 (2018)
Dengue creates a staggering epidemiological and economic burden for endemic countries. Without a specific therapy and with a commercial vaccine that presents some problems relative to its full effectiveness, initiatives to improve vector
...
control strategies, early disease diagnostics and the development of vaccines and antiviral drugs are priorities. In this study, we present the probable origins of dengue in America and the trajectories of its spread. Overall, dengue diagnostics are costly, making the monitoring of dengue epidemiology more difficult and affecting physicians’ therapeutic decisions regarding dengue patients, especially in developing countries. This review also highlights some recent and important findings regarding dengue in Brazil and the Americas. We also summarize the existing DENV polymerase chain reaction (PCR) diagnostic tests to provide an improved reference since these tests are useful and accurate at discriminating DENV from other flaviviruses that co-circulate in the Americas. Additionally, these DENV PCR assays ensure virus serotyping, enabling epidemiologic monitoring.
more
Evidence-based guidelines are one of the most useful tools for improving public health and clinical practice. Their purpose is to formulate interventions based on strong evidence of efficacy, avoid unnecessary risks, use resources efficiently, reduce clinical variability and, in essence, improve hea
...
lth and ensure quality care, which is the purpose of health systems and services. These guidelines were developed following the GRADE methodology, with the support of a panel of clinical experts from different countries, all convened by the Pan American Health Organization. By responding to twelve key questions about the clinical diagnosis and treatment of dengue, chikungunya, and Zika, evidence-based recommendations were formulated for pediatric, youth, adult, older adult, and pregnant patients who are exposed to these diseases or have a suspected or confirmed diagnosis of infection. The purpose of the guidelines is to prevent progression to severe forms of these diseases and the fatal events they may cause. The recommendations are intended for health professionals, including general, resident, and specialist physicians, nursing professionals, and medical and nursing students, who participate in caring for patients with suspected dengue, chikungunya, or Zika. They are also intended for health unit managers and the executive teams of national arboviral disease prevention and control programs, who are responsible for facilitating the process of implementing these guidelines.
more
As countries aim to progress towards the Sustainable Development Goals (SDGs) and achieving universal health coverage, health inequities driven by racial discrimination and intersecting factors remain pervasive. Inequities experienced by indigenous peoples as well as people of African descent, Roma
...
and other ethnic minorities are of concern globally; they are unjust, preventable and remediable.
Health systems themselves are important determinants of health and health equity. They can perpetuate health inequities by reflecting structural racism and discriminatory practices of wider society. For instance, systemic racism, implicit bias, misinformed clinical practice, or discrimination by health professionals contributes to health inequities. However, health systems can also be a leading force for tackling the inequities faced by populations experiencing racial discrimination.
Primary health care (PHC) is the essential strategy for reorientating health systems and societies to become healthier, equitable, effective and sustainable. In 2018, on the 40th anniversary of the Declaration of Alma-Ata, the World Health Organization (WHO) and the United Nations Children’s Fund (UNICEF) renewed the emphasis on PHC with their strategy,
WHO outlines 14 strategic and operational levers for policy-makers to strengthen PHC. Within each lever, there are multiple potential entry points for targeted actions to address racial discrimination, foster intercultural care, and reduce health inequities experienced by indigenous peoples as well as people of African descent, Roma and other ethnic minorities.
more
The Strategic Advisory Group of Experts (SAGE) on Immunization held a meeting on 3-6 October 2022. This report summarizes the discussions, conclusions and recommendations.
It covers the following items:
Global Reports
Immunization Agenda 2030 and Regional reports
Monkeypox
RSV
COVID-19 vacci
...
nes
Polio vaccination
Ebola (Sudan ebolavirus outbreak update)
more
Trachoma causes more vision loss and blindness than any other infection in the world. This disease is caused by Chlamydia trachomatis bacteria. Other variants or strains of these bacteria can cause a sexually transmitted infection (chlamydia) and disease in lymph nodes.
This is photomicrograph
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of a conjunctival smear that revealed the presence of what are known as, intracytoplasmic inclusions Trachoma is easily spread through direct personal contact such as from fingers, through shared towels and clothes, and through flies that have been in contact with the eyes or nose of an infected person. When left untreated, repeated Chlamydia trachomatis infections in the eye can cause severe scarring on the inside of the eyelid. This can cause the eyelashes to scratch the cornea (trichiasis). In addition to causing pain, trichiasis permanently damages the cornea and can lead to irreversible blindness.
Chlamydia trachomatis infections spread in areas that lack access to safely managed drinking water and sanitation systems. Trachoma affects the most resource-limited communities in the world. Globally, almost 1.9 million people have vision loss because of trachoma, and it causes 1.4% of all blindness worldwide.1 In 2021, 136 million people lived in trachoma-endemic areas and were at risk of trachoma blindness.
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In 2011, ICTC developed a Trachoma Action Plan (TAP) planning guide to support national health officials in endemic countries. This resource was developed to complement the 2020 INSight roadmap by helping countries create specific national plans detailing how they will reach elimination targets in t
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heir own particular contexts.
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Abstract: Chagas disease is caused by infection with the protozoan Trypanosoma cruzi, and although over 100 years have passed since the discovery of Chagas disease, it still presents an increasing problem for global public health. A plethora of information concerning the chronic phase of human Chaga
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s disease, particularly the severe cardiac form, is available in the literature. However, information concerning events during the acute phase of the disease is scarce. In this review, we will discuss the current status of acute Chagas disease cases globally, the immunological findings related to the acute phase and their possible influence in disease outcome, and reactivation of Chagas disease in immunocompromised individuals, a key point for transplantation and HIV invection management.
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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
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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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Comprehensive Guidelines for Prevention and Control of Dengue and Dengue Haemorrhagic Fever -Revised and expanded edition
World Health Organization World Health Organization WHO Regional Office for South-East Asia
WHO Regional Office for South-East Asia
(2011)
CC
Revised and expanded version of the Guidelines
Access to health workers who are fit for purpose, motivated and protected is a fundamental force of health service delivery and the achievement of universal health coverage and the health and health-related Sustainable Development Goals. Data and knowledge of the distribution, skill mix and future d
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evelopment needs of the health workforce can mean the difference between enabling or impeding health systems performance, inclusive economic growth and global health security preparedness and response
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Since 2000, concerted efforts by national programmes, supported by public–private partnerships, nongovernmental organizations, donors and academia under the auspices and coordination of the World Health Organization (WHO), have produced important achievements in the control of human African trypan
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osomiasis (HAT). As a consequence, the disease was targeted for elimination as a public health problem by 2020. The Sixty-sixth World Health Assembly endorsed this goal in resolution WHA66.12 on neglected tropical diseases, adopted in 2013.
National sleeping sickness control programmes (NSSCPs) are core to progressing control of the disease and in adapting to the different epidemiological situations. The involvement of different partners, as well as the support and trust of long-term donors, has been crucial for the achievements.
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UNICEF, WHO Whole of Syria Nutrition, Cluster, the Global Nutrition Cluster, the IFE Core Group, and partners call for ALL involved in the response to the earthquakes in Syria to protect, promote, and support the feeding and care of infants and young children, their caregivers, especially pregnant,
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postpartum, and breastfeeding women. This is critical to support maternal and child survival, growth and development, and to prevent malnutrition, illness and death. This joint statement has been issued to help secure immediate, coordinated, multi-sectoral action on infant and young child feeding (IYCF) to support and provide care for infants and their caregivers during the emergency response of the Earthquake in Syria.
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Yaws is a disfiguring non-venereal disease caused by infection with the spirochaete. Treponema pallidum subspecies pertenue which is closely related to the causative agent of syphilis and those of the other endemic treponematoses, bejel and pinta. The disease is endemic in certain areas of the World
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Health Organization (WHO) African, South-East Asia and Western Pacific regions. Of the neglected tropical diseases identified for elimination and eradication, yaws is one of two diseases targeted for eradication. In 1949, the Second World Health Assembly adopted resolution WHA2.36, which addresses yaws, bejel and pinta as major public health problems that need attention.
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Rabies is fatal, vaccine-preventable disease responsible for an estimated 59,000 human deaths each year. Most cases are transmitted by dogs, and most deaths occur in underserved populations in Africa and Asia. Approximately 40% of deaths occur in children.
Regional implementation framework for elimination of cervical cancer as a public health problem: 2021–2030
recommended
Cervical cancer continues to be a significant public health problem and a major cause of premature mortality among women, disproportionately affecting the socioeconomically disadvantaged population in low- and middle-income countries (LMICs). In the absence of implementing the known evidence-based,
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cost-effective interventions, the number of deaths per year is projected to reach approximately 416 000 globally in 2035. It was estimated in 2020 that 32% of incident cervical cancer cases and 34% of cervical cancer deaths in the world occurred in the 11 Member States of the WHO South-East Asia (SEA) Region. In 2020, 190 874 new cases and 116 015 deaths were estimated due to cervical cancer, which is the third commonest cancer in the Region
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In the last decade, Timor-Leste has made remarkable progress in strengthening its health system and improving the health status of its population. This has resulted in an increased life expectancy, and the achievement of Millennium Development Goals such as a reduction in infant and under-five morta
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lity, an improvement in maternal and child health outcomes, and an increase in immunization coverage. Further, the country has successfully eliminated infectious diseases such as polio, measles, and maternal and neonatal tetanus. There is full political commitment to reducing the incidence of tuberculosis (TB) by 80% and the number of deaths due to TB by 90% by 2030. The country has made great progress in the context of the pandemic, having established numerous quarantine facilities/isolation centres; trained health-care workers; streamlined the procurement and supply of medicines, consumables, personal protective equipment and other equipment; and strengthened the capacity in critical care across secondary and tertiary health care, to better respond to future pandemics and other disaster situations.
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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
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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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The conditionality of this recommendation is largely driven by the current higher unit cost of pyrethroid-PBO ITNs compared
to pyrethroid-only LLINs and therefore the uncertainty of their cost-effectiveness. Furthermore, as PBO is less wash-resistant
than pyrethroids, its bioavailability declines
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faster over the three-year estimated life of an ITN; therefore, the added impact of
pyrethroid-PBO ITNs over that of pyrethroid-only LLINs may decline over time. The evidence comes from two sites in
eastern Africa with pyrethroid resistance and not from other geographies where transmission levels and vector characteristics
may vary. PBO acts by inhibiting certain metabolic enzymes, primarily oxidases, and so are likely to provide greater protection
than pyrethroid-only LLINs where mosquitoes display mono-oxygenase-based insecticide resistance mechanisms.
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Forests and Trees for Human Health: Pathways, Impacts, Challenges and Response Options
Cecil Konijnendijk, Dikshya Devkota, Stephanie Mansourian & Christoph Wildburger (eds.)
International Union of Forest Research Organizations (IUFRO)
(2023)
C2
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
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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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