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...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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WHO needs US$2.54 billion to provide life-saving assistance to millions of people around the world facing health emergencies. WHO’s Health Emergency Appeal is a consolidation of WHO’s priorities and financial requirements for 2023 to carry out health interventions in emergency and humanitarian r...esponses. The number of people in need of humanitarian relief has increased by almost a quarter compared to 2022, to a record 339 million. WHO is responding to an unprecedented number of intersecting health emergencies: climate change-related disasters such as flooding in Pakistan and food insecurity across the Sahel in the greater Horn of Africa; the war in Ukraine; and the health impact of conflict in Yemen, Afghanistan, Syria and north eastern Ethiopia – all of these emergencies overlapping with the health system disruptions caused by the COVID-19 pandemic and outbreaks of measles, cholera, and other killers. Contributions to the appeal can be fully flexible, flexible across a region, or flexible within a country appeal.
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Theodor Bilharz, a German professor of anatomy and chief of surgery at the Kasr El Ani Hospital of Cairo from 1850, first identified an infective organism, Distomum hematobium in 1851, which was renamed Schistosoma haematobium in 1858. It arose from a cestode worm, Hymenoleptis nana, lying in the sm...all colon of an Egyptian patient. He also discovered a trematode worm at the same time from an autopsy, thought to be the cause of urinary Schistosomiasis. Bilharz died from typhoid fever in 1862 at the age of 37. The Theodor Bilharz Research Institute in Giza, Egypt, stands as a tribute to him today. F. Milton published the first recorded peer-reviewed article report on Schistosomiasis in 1914.
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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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Mycetoma is a specific chronic, granulomatous, inflammatory disease. It usually involves the subcutaneous tissue, most probably after traumatic inoculation of the causative organism. It has a prolonged, progressive, and indolent course, and, if untreated, it ultimately leads to destruction of the de...eper tissues and bone, resulting in deformity and disability that may necessitate amputation of the affected parts with all the social and economic implications of this. The disease is characterized by tumefaction, draining sinuses, and the presence of grains.
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Report of a global meeting on yaws eradication surveillance, monitoring and evaluation: Geneva, 29–30 January 2018. World Health Organization.
Skin-related neglected tropical diseases, or “skin NTDs”, are historically neglected because active case detection, individual case management, significant resources and intensive effort are required to control, eliminate and eradicate them. Integrated control and management of skin NTDs offers ...a pathway to overcome some of these past challenges.
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Malgré les progrès récents vers la mise au point d’un traitement hautement efficace et abordable contre le virus de l’hépatite C, beaucoup de personnes infectées par ce virus ne connaissent pas leur statut. L’Organisation mondiale de la Santé (OMS) estime qu’en 2019, 58 millions ...de personnes à travers le monde étaient atteintes d’une infection chronique par le virus de l’hépatite C, et qu’à peine 21 % d’entre elles avaient été diagnostiquées. Le défaut de sensibilisation, l’accès limité aux services de dépistage et de traitement, la stigmatisation, la discrimination et d’autres obstacles structurels contribuent au faible taux d’utilisation des services de dépistage du virus de l’hépatite C.
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The Transformation Agenda (TA) ushered in an ambitious reform process intended to transform the World Health Organization (WHO) into an organization that is proactive, results-driven, accountable and which meets stakeholder expectations, towards transforming and improving public health services in t...he African Region. It aimed to achieve a WHO that is pro-results, which optimally and creatively targets technical work as well as make operations more responsive, with greater effectiveness in both communications and partnerships. The Africa Region has been the epicentre of the human immunodeficiency virus (HIV) epidemic and it’s one of the leading causes of disease and death on the continent. The WHO, with partners, has worked tirelessly for many years to control the threat and reduce the negative impact of the disease. Since the early 2000s, significant progress has been made in the global fight against the scourge of HIV. However, the WCA subregion was falling concerningly behind ESA on several key indicators of progress. In 2016, the WHO joined UNAIDS, UNICEF and other partners in a call for a strong and urgent response to support WCA countries to develop catch-up plans to triple and fast-track ART coverage, to enable the region to catch up with ESA by the end of 2020. Implementation of a widespread test-and-treat strategy, coupled with the scale-up of differentiated service delivery (DSD) and mobilization of requisite funding, accelerated WCA’s progress towards this goal. The HIV treatment catch-up and fast-track plan has achieved its target of seeing the West and Central African region (WCA) catch up with the Eastern and Southern African region’s (ESA) antiretroviral coverage rate of 78% in 2021, albeit later than the 2020 target time frame. A 33% improvement was achieved in WCA, against 21% in ESA, between 2015–2020. WCA achieved a significant 42% increase, compared to ESA’s 23%, between 2015 and 2021, to see WCA draw level with ESA at 78%. In the Democratic Republic of the Congo (DRC) alone, progress of up to 47% was observed between 2015 and 2020, for example. In addition, 1.6 million more People Living with HIV (PLHIV) were enrolled on antiretroviral treatment (ART) between 2015 and 2020.
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The Country Cooperation Strategy is the World Health Organization’s corporate framework developed in response to a country’s needs and priorities. The 2022–2025 CCS is the fourth for WHO in Sierra Leone. It is a medium-term strategic document that defines a broad framework for WHO’s work, at... all levels, with the Government of Sierra Leone and all health partners for the next four years. This document is guided by the country’s major policy and strategy documents including the 2020 National Health and Sanitation Policy (NHSP); the 2021–2025 National Health Sector Strategic Plan (NHSSP); and the 2019–2023 National Medium-term Development Plan (NMTDP). The current CCS also reflects the broad priorities of WHO as outlined in its Thirteenth General Programme of Work (2019–2023, extended to 2025) with a focus on improving access to universal health coverage, protecting people from health emergencies, and improving people’s health and well-being. The CCS priorities are also in alignment with the United Nations Sustainable Development Cooperation Framework (UNSDCF) in Sierra Leone and will contribute to attaining the country's SDG targets
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Cystic echinococcosis (CE) is a well-known neglected parasitic disease. However, evidence supporting the four current treatment modalities is inadequate, and treatment options remain controversial. The aim of this work is to analyse the available data to answer clinical questions regarding medical t...reatment of CE.
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Over the 20 years that followed, this unique partnership has invested more than US$53 billion, saving 44 million lives and reducing the combined death rate from the three diseases by more than half in the countries in which the Global Fund invests.
Previous advocacy efforts have achieved tangible goals in terms garnering political commitments
to increase financing for TB—as seen at the 2018 UN High-Level Meeting on TB. The challenge
now is to ensure that these commitments are actually met within a global biomedical research
ecosystem that... is designed and incentivized to prioritize the health needs of wealthy populations
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Building on the 2021 Interim guidance, this second version and update, incorporates the lessons and feedback from the hepatitis pilots that successfully demonstrated the feasibility of measuring hepatitis B and C impact targets to demonstrate elimination, whilst highlighting challenges caused by hig...h disease burden in some countries, as well as delays in reaching mortality targets due to the long natural history of disease progression to liver cirrhosis and hepatocellular carcinoma.
The path to elimination provides a framework with 3 levels of achievements for which WHO certification is available. Each stepwise progression from bronze to silver to gold tiers will promote an iterative expansion of prevention, diagnosis and treatment services for viral hepatitis services and strengthen measurement systems to support attainment of the 2030 elimination goals.
This updated version also includes changes, clarifications and new guidance on alternative measurement approaches for country validation of elimination. Through the validation process, WHO and partners continue to provide country support for strengthening health system capacity and patient-centred services that respect and protect the human rights of people living with viral hepatitis and ensures meaningful engagement of communities in the national, regional and global viral hepatitis response.
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Cardiovascular diseases, principally ischemic heart disease (IHD), are the most important cause of death and disability in the majority of low- and lower-middle-income countries (LLMICs). In these countries, IHD mortality rates are significantly greater in individuals of a low socioeconomic status (...SES).
Three important focus areas for decreasing IHD mortality among those of low SES in LLMICs are (1) acute coronary care; (2) cardiac rehabilitation and secondary prevention; and (3) primary prevention. Greater mortality in low SES patients with acute coronary syndrome is due to lack of awareness of symptoms in patients and primary care physicians, delay in reaching healthcare facilities, non-availability of thrombolysis and coronary revascularization, and the non-affordability of expensive medicines (statins, dual anti-platelets, renin-angiotensin system blockers). Facilities for rapid diagnosis and accessible and affordable long-term care at secondary and tertiary care hospitals for IHD care are needed. A strong focus on the social determinants of health (low education, poverty, working and living conditions), greater healthcare financing, and efficient primary care is required. The quality of primary prevention needs to be improved with initiatives to eliminate tobacco and trans-fats and to reduce the consumption of alcohol, refined carbohydrates, and salt along with the promotion of healthy foods and physical activity. Efficient primary care with a focus on management of blood pressure, lipids and diabetes is needed. Task sharing with community health workers, electronic decision support systems, and use of fixed-dose combinations of blood pressure-lowering drugs and statins can substantially reduce risk factors and potentially lead to large reductions in IHD. Finally, training of physicians, nurses, and health workers in IHD prevention should be strengthened.
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Background: Cardiovascular disease (CVD), mainly heart attack and stroke, is the
leading cause of premature mortality in low and middle income countries (LMICs).
Identifying and managing individuals at high risk of CVD is an important strategy to prevent and control CVD, in addition to multisector...al population-based interventions to reduce CVD risk factors in the entire population.
Methods: We describe key public health considerations in identifying and managing individuals at high risk of CVD in LMICs.
Results: A main objective of any strategy to identify individuals at high CVD risk is to maximize the number of CVD events averted while minimizing the numbers of
individuals needing treatment. Scores estimating the total risk of CVD (e.g. ten-year risk of fatal and non-fatal CVD) are available for LMICs, and are based on the main CVD risk factors (history of CVD, age, sex, tobacco use, blood pressure, blood cholesterol and diabetes status). Opportunistic screening of CVD risk factors enables identification of persons with high CVD risk, but this strategy can be widely applied in low resource settings only if cost effective interventions are used (e.g. the WHO Package of Essential NCD interventions for primary health care in low resource settings package) and if treatment (generally for years) can be sustained, including continued availability ofaffordable medications and funding mechanisms that allow people to purchase medications without impoverishing them (e.g. universal access to health care). Thisalso emphasises the need to re-orient health systems in LMICs towards chronic diseases management.
Conclusion: The large burden of CVD in LMICs and the fact that persons with high
CVD can be identified and managed along cost-effective interventions mean that
health systems need to be structured in a way that encourages patient registration, opportunistic screening of CVD risk factors, efficient procedures for the management of chronic conditions (e.g. task sharing) and provision of affordable treatment for those with high CVD risk. The focus needs to be in primary care because that is where most of the population can access health care and because CVD programmes can be run effectively at this level.
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This technical report has been developed within the framework of the WHO Global Initiative for
Childhood Cancer. Its goal is to improve the situation of children and adolescents with cancer worldwide,
giving them the best chances of survival, living a full life and, above all, enjoying quality of ...life and dying
without suffering
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Buruli ulcer (BU) is a bacterial skin infection that is caused by Mycobacterium ulcerans and mainly affects people who reside in the rural areas of Africa and in suburban and beach resort communities in Australia.
Non-communicable diseases (NCDs) are of increasing concern for society and national governments, as well as globally due to their high mortality rate. The main risk factors of NCDs can be classified into the categories of self-management, genetic factors, environmental factors, factors of medical co...nditions, and socio-demographic factors.
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As the Americas undergo profound demographic change and there are more persons aged 65 years or older than children younger than 5 years, it is crucial to recognize that national immunization programs must be redesigned to ensure comprehensive protection for individuals across the lifespan. By adopt...ing a life course approach (LCA) to immunization, vaccination programs can be tailored to close immunity gaps at different stages of life. The life course approach foresees the establishment of multiple strategies to reduce missed opportunities for vaccination according to age group. This technical document explains the key concepts of the LCA with a focus on immunization by vaccination, as well as the underlying biological mechanisms that require the application different vaccines at different life stages according to changes to the immune system and in the epidemiological situation of a community.
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