Biology, Diagnosis and Treatment, Epidemiology and Prevention
Towards Universal Access to Prevention, Diagnosis and Treatment
La récente augmentation du nombre de cas de microcéphalie et d’autres troubles neurologiques potentiellement associés à une infection à virus Zika a engendré une recrudescence des demandes de dépistage en laboratoire de cette infection. Les groupes prioritaires pour un test de diagnostic d...oivent être constitués de personnes symptomatiques et de femmes enceintes asymptomatiques potentiellement exposées au virus Zika.
Ce document fournit des indications sur les stratégies actuelles de dépistage de l’infection à virus Zika. Il sera revu et actualisé à mesure que des informations supplémentaires deviendront disponibles.
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The skin of a patient is the first and most visible structure of the body that any health-care worker encounters during the course of an examination. To the patient, it is also highly visible, and any disease that affects it is noticeable and will have an impact on personal and social well-being. Th...e skin is therefore an important entry point for both diagnosis and management. Many diseases of humans are associated with changes to the skin, ranging from symptoms such as itching to changes in colour, feel and appearance.
This training guide explains how to identify the signs and symptoms of neglected tropical diseases of the skin through their visible characteristics. It also contains information on how to diagnose and manage common skin problems that front-line health workers may encounter.
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Nature Reviews Microbiology Vol. 17 (2019)pp.51-62
Antimicrobial susceptibility testing (AST) technologies help to accelerate the
initiation of targeted antimicrobial therapy for patients with infections and could potentially
extend the lifespan of current narrow- spectrum antimicrobials. Althoug...h conceptually new and
rapid AST technologies have been described, including new phenotyping methods, digital
imaging and genomic approaches, there is no single major, or broadly accepted, technological
breakthrough that leads the field of rapid AST platform development
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1st edition
This resource provides practical guidance for front line health workers responsible for the diagnosis, management and care of patients with these two diseases. Published in collaboration with the World Diabetes Foundation
Malar J (2017) 16:174 DOI 10.1186/s12936-017-1808-x
Background: Since 2004, artemisinin-based combination therapy (ACT) has been the first-line treatment for uncomplicated malaria in Benin. In 2016, a medicine outlet survey was implemented to investigate the availability, price, and market share of... anti-malarial treatment and malaria diagnostics. Results provide a timely and important benchmark to measure future interventions aimed at increasing access to quality malaria case management services.
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Myanmar, as a country going through rapid socio-political transition and institutional development also suffers with a high burden of infectious disease. An ongoing challenge has been to effectively reach its 51 million population, most of whom battle tuberculosis, acute respiratory infections, diar...rhoea and malaria including amongst under-five children.
Limited research data on the occurrence of resistant organisms in the nation have, makes it hard to estimate the exact antimicrobial resistance (AMR) scenario. Limited peer reviewed evidence indicates significant divergence from the average resistance trends in APAC region. Nevertheless, several key steps by Government of Myanmar have been instrumental in paving the way for the country to join other nations in the South East Asia Region to speed up its plan on addressing the AMR crisis. Combating antimicrobial resistance would, however, require highest political commitment, multi-sectoral coordination, sustained investment and technical assistance.
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Prevention, early diagnosis, and effective treatment are essential for the control and elimination of Neisseria gonorrhoeae as a public health problem. Currently, in Latin America and the Caribbean, treatment for gonorrhea infection is largely empiric and based on clinical diagnosis. In the Americas..., the high burden of new N. gonorrhoeae infections (estimated at 11 million new cases a year), the complexity of the disease epidemiology, and in many countries the limited resources, make it difficult to fully understand the burden of disease and the burden of antimicrobial resistance (AMR) in N. gonorrhoeae.
PAHO has developed this document to facilitate the navigation of available guidance and recommendations for N. gonorrhoeae AMR surveillance by public health and health care professionals, at the national and subnational levels, involved in designing, implementing, and/or strengthening AMR surveillance of N. gonorrhoeae and overall surveillance of sexually transmitted infections.
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These guidelines provide new and updated recommendations on the use of point-of-care testing in children under 18 months of age and point-of-care tests to monitor treatment in people living with HIV; the treatment monitoring algorithm; and timing of antiretroviral therapy (ART) among people living w...ith HIV who are being treated for tuberculosis.
New recommendations launched today outline key new actions that countries can take to improve the delivery of HIV testing, treatment and care services by providing greater options for differentiated approaches such as, supporting HIV treatment start in the community, ensuring that children are diagnosed and treated early, and that viral load treatment monitoring is more accessible, focused and triggers clinical action
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Systematic screening for TB disease is the systematic identification of people at risk for TB disease, in a predetermined target group, by assessing symptoms and using tests, examinations or other procedures that can be applied rapidly.
Systematic screening can benefit people who are at risk of get...ting TB, as early detection and start of treatment can improve their outcomes and reduce their costs. It can also benefit entire communities at higher risk for TB, by reducing the prevalence of TB disease and preventing future cases.
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Many African countries were amongst the most rapid to respond to the emerging threat of COVID-19, implementing large-scale interventions at very early stages of their epidemic. As demonstrated in this document using very simple models, this rapid mobilization and timeliness of implementing control m...easures is likely to be an important determinant of their success. Indeed, as these measures were relaxed, subsequent waves of disease have been observed in many countries including South Africa, Kenya, Tunisia, Morocco, Sudan and the Democratic Republic of Congo (DRC) where such waves have severely impacted the health system by straining the supply of oxygen and ICU beds and inflicting a heavy toll on healthcare workers, often necessitating the re-imposition of control measures.
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The brief highlights some findings as part of a project on Innovation for Cancer Care in Africa (ICCA)1. The study provides insights on the experiences of 62 Tanzanian cancer patients, the journey from their first symptoms to the point of diagnosis and treatment. The project brings together research...ers from Tanzania, Kenya, India and the United Kingdom to address the opportunities and challenges of linking industry and health systems to widen access to cancer care in Tanzania and Kenya.
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22 Sept. 2021
The rapid development of effective Covid-19 vaccines in 2020 gave hope to the world in the darkest days of the deadly pandemic. However, the vaccine roll-out has been massively skewed towards wealthy nations. While rich states have hoarded vaccines, companies have also played a decisi...ve role in restricting fair access to a life-saving health product. This report focuses on six leading vaccine developers, AstraZeneca, BioNTech, Johnson & Johnson, Moderna, Novavax and Pfizer, assessing each company’s human rights policy, pricing structure, records on intellectual property, knowledge and technology sharing, allocation of available vaccine doses and transparency.
Available in Arabic, English, French, German and Spanish
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The socioeconomic factors and public health inadequacies that facilitated the rapid spread of this infection continue to exist. As it is a new and emerging disease it has not received sufficient coverage yet in the medical curricula of Member States. Specific treatment is not available, and there is... no vaccine for the prevention of chikungunya fever. It has therefore become imperative to develop guidelines, based on the limited clinical experience gathered from managing patients so far, for appropriate management of patients in communities and in health facilities. Experts engaged in managing patients with chikungunya fever in the Region were brought together by the WHO Regional Office for South-East Asia to outline guidelines for managing various situations and stages of the disease.
The socioeconomic factors and public health inadequacies that facilitated the rapid spread of this infection continue to exist. As it is a new and emerging disease it has not received sufficient coverage yet in the medical curricula of Member States. Specific treatment is not available, and there is no vaccine for the prevention of chikungunya fever. It has therefore become imperative to develop guidelines, based on the limited clinical experience gathered from managing patients so far, for appropriate management of patients in communities and in health facilities. Experts engaged in managing patients with chikungunya fever in the Region were brought together by the WHO Regional Office for South-East Asia to outline guidelines for managing various situations and stages of the disease. This publication is the end result of that exercise and is intended to assist health-care providers in planning and implementing appropriate care to patients with chikungunya fever according to their actual clinical conditions
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The development of this target product profile (TPP) was led by the WHO Department of Control of Neglected Tropical Diseases (NTD) following standard WHO guidance for TPP development. In order to identify and prioritize diagnostic needs, a WHO NTD Diagnostics Technical Advisory Group (DTAG) was form...ed, and different subgroups were created to advise on specific NTDs, including a subgroup working on the human African trypanosomiasis (HAT) diagnostic innovation needs. This group of independent experts included leading scientists, public health officials and endemic-country end-user representatives. Standard WHO Declaration of Interest procedures were followed. A landscape analysis of the available products and of the development pipeline was conducted, and the salient areas with unmet needs were identified.
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Most neglected tropical diseases (NTDs) occur in remote areas of low- and middle-income countries, where health systems are often poorly developed. Therefore, these neglected patients generally lack access to quality preventive, diagnostic, and therapeutic care [1]. The difficulty to access NTD-ende...mic areas, challenging logistics, and the lack of skilled human resources in these areas are also major obstacles to conduct clinical research. We had to face these when conducting a good clinical practice/good clinical laboratory practice (GCP/GCLP)-compliant clinical study in eastern Sudan, a well-known endemic area for visceral leishmaniasis and other NTDs. We share here the challenges related to study preparation and implementation of this GCP/GCLP study that investigated the causes of persistent fever in a rural hospital located in Gedaref State in eastern Sudan. We think this type of paper may be of interest for researchers planning to conduct a clinical trial in a resource-limited setting as well as for funders of such research.
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Rabies has an enormous impact on both agriculture and conservation biology, but its greatest burden is undeniably on public health. As such, routine methods for rapid risk assessment after human exposures to rabies as well as applications for laboratory-based surveillance, production of biologicals ...and management of this infectious disease are critical. Given its mandate to improve human health and control disease among its Member States, WHO has led the production of this fifth edition of Laboratory techniques in rabies.
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The Contingency Fund for Emergencies (CFE) provides WHO with rapid and flexible resources to respond to disease outbreaks and other health emergencies. The annual report provides an overview of the use and impact of the Fund over the previous year.
HIV testing programmes need to ensure that all clients who test for HIV are provided with correct diagnoses. The accuracy of HIV testing is critical to prevent misdiagnosis, as the consequences of giving an incorrect test result can be serious for clients, HIV testing services, HIV programmes and pu...blic health.
With the evolution of global HIV epidemiology, HIV testing approaches must also evolve to maintain accuracy and efficiency in population-level diagnosis. Reports suggest that misdiagnosis of HIV status may occur when suboptimal testing algorithms and out-of-date testing strategies are used. As a result of changing epidemiology and declining HIV positivity in testing, WHO recommends all countries use a standard three-test strategy to ensure a PPV of at least 99%, minimizing false-positive misdiagnosis. The WHO-recommended HIV testing strategy, along with quality assurance measures such as retesting to verify a positive diagnosis prior to initiation of HIV treatment, is cost-effective as it prevents misdiagnosis and unnecessary initiation of costly lifelong treatment.
This implementation guide provides practical advice on switching to a three-test strategy and instituting other measures that can help national HIV programmes deliver high-quality, accurate HIV testing services and ensure that misdiagnosis is minimized.
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