Objectif du module : Identifier la structure du virus Ebola, la pathogénèse, reconnaitre un cas suspect, faire les prélèvements et le diagnostic de certitude,acheminement des échantillons
Esta segunda edición de Medios auxiliares para el diagnóstico de las parasitosis intestinales tienen por objeto servir tanto de manual dirigido a los trabajadores de laboratorio y sobre el terreno en países con endemicidad, como de material didáctico para los estudiantes y las personas en formac...ión. En este documento se ofrece orientación para elegir la preparación en los diferentes métodos copromicroscópicos y la técnica de tinción principal para el diagnóstico de los parásitos intestinales (nematodos, trematodos, cestodos y protozoos). Las microfotografías presentan la apariencia y las características diagnósticas de los diferentes parásitos en las diversas preparaciones. Los medios auxiliares se elaboraron en un formato plastificado impermeable que es sólido y fácil de usar en la mesa de laboratorio. Se recomienda su uso a todos los profesionales de salud que se ocupan del diagnóstico corriente de las parasitosis intestinales.
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Monkeypox is an emerging viral zoonosis with symptoms similar to those observed in smallpox patients, although less severe. Since the global eradication of smallpox in 1980, monkeypox has emerged as the most important orthopoxvirus in humans. The Advisory Committee on Variola Virus Research (ACVVR) ...which meets annually to oversee smallpox research has highlighted the importance of diagnostics that could distinguish between variola and other strains of orthopoxviruses, including monkeypox virus. The ACVVR encourages the positive effects of current smallpox research on all orthopoxviruses, specifically monkeypox, such as the development of diagnostic tools.
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This National Action Plan addresses actions needed to be taken in order to combat antimicrobial resistance (AMR) in the country. It is obligatory to raise awareness of antimicrobial resistance and promote behavioral change through public communication
programmes that targets human, animal and plant... health. Inclusion of the use of antimicrobial agents and resistance in school curricula will further promote better understanding and awareness from an early age. Antimicrobial Resistance knowledge, surveillance and research will be strengthened through establishing a national surveillance system for antimicrobial resistance, establishing and building capacity for a national reference laboratory and designated laboratories for AMR surveillance, developing a national research agenda on AMR and establishing and supporting a coordinated mechanism that will ensure harmonized AMR guidelines, data management and sharing systems in human, animal and plant health settings.
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A survey was conducted in countries in all six WHO regions and focused on the building blocks that are considered prerequisites to combat antimicrobial resistance: a comprehensive national plan, laboratory capacity to undertake surveillance for resistant microorganisms, access to safe, effective ant...imicrobial medicines, control of the misuse of these medicines, awareness and understanding among the general public and effective infection prevention and control programmes.
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Six months after its launch on 24 April, the Access to COVID-19 Tools (ACT) Accelerator has already delivered concrete results in speeding up the development of new therapeutics, diagnostics, and vaccines. Now mid-way through the scale-up phase, the tools we need to fundamentally change the course o...f this pandemic are within reach. But to deliver the full impact of the ACT-Accelerator – and ultimately an exit to this global crisis – these tools need to be available everywhere. On behalf of the ACT-Accelerator Pillar lead agencies – CEPI, Gavi, the Global Fund, FIND, Unitaid, Wellcome Trust, the World Bank, and the World Health Organization, as well as the Bill & Melinda Gates Foundation – I am pleased to share this document setting out the near-term priorities, deliverables and financing requirements of the ACT-Accelerator Pillars and Health Systems Connector. Urgent action to address these financing requirements will boost the impact of the ACTAccelerator achievements to date, fast-track the development and deployment of additional game-changing tools, and mitigate the risk of a widening gap in access to COVID-19 tools between low- and high-income countries. Delivering on this promise requires strong political leadership, financial investment, and incountry capacity building. COVID-19 cannot be beaten by any one country acting alone. We must ACT now, and ACT together to end the COVID-19 crisis.
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People living with HIV who have a low CD4 count are at a much higher risk of falling ill from TB infection than HIV negative people.
It is important to offer both HIV testing to TB patients and TB diagnosis in HIV patients. Early detection and effective treatment are essential to preventing TB...-associated deaths.
WHO and UNAIDS have strongly advised countries to ensure that HIV programmes integrate regular TB screening, preventive therapy and early treatment.
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Whole-genome sequencing (WGS) provides a vast amount of information and the highest possible resolution for pathogen subtyping. The application of WGS for global surveillance can provide information on the early emergence and spread of AMR and further inform timely policy development on AMR control.... Sequencing data emanating from AMR surveillance may provide key information to guide the development of rapid diagnostic tools for better and more rapid characterization of AMR, and thus complement phenotypic methods. This document addresses the applications of WGS for AMR surveillance, including the benefits and limitations of current WGS technologies
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he WHO South-East Region in 2019 accounted for nearly a million missing TB patients from the estimated incidence. Active case-finding (ACF) or systematic screening for tuberculosis is an important tool to reach out to missing TB patients. When appropriately implemented, the activity is cost effectiv...e, helps to reduce diagnosis and treatment delays, and prevents the spread of the disease. This document presents an analysis of published ACF studies from the Region. It can be used by Member States for effective planning, implementation and monitoring of these activities.
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The two-year impact report for the Access to COVID-19 Tools (ACT) Accelerator details impact, case studies and timelines of key milestones for the Diagnostics, Therapeutics and Vaccines pillars, as well as the Health Systems and Response Connector.
The Lancet Volume 390, Issue 10110p2397-2409November 25, 2017.
Human African trypanosomiasis (HAT), also called sleeping sickness, is a parasitic infection that almost invariably progresses to death, unless treatment is provided. HAT caused devastating epidemics during the 20th century. Thanks to ...sustained and coordinated efforts during the past 15 years the number of reported cases has fallen to a historic low. Fewer than 3,000 cases were reported in 2015, and the disease is targeted for elimination by the World Health Organization. Despite recent success, HAT still poses a heavy burden on the rural communities where this highly focal disease occurs, most notably in Central Africa. Since patients are also reported from non-endemic countries outside Africa, HAT should be considered in differential diagnosis for all travellers, tourists, migrants and expatriates who have visited or lived in endemic areas. In the absence of a vaccine, disease control relies on case detection and treatment, and vector control. Available drugs are sub-optimal, but ongoing clinical trials give hope for safer and simpler treatments.
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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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Communication to Healthcare Professionals Mar-2020
This guideline is intended to assist healthcare professionals in the participation of very important process of continuous surveillance of safety and efficacy of the health products which are used in their clinical practice. Continuous evaluation o...f medicines’ benefit and harm help to achieve the ultimate goal of safe and effective treatments available to patients.
The guideline is intended to assist healthcare professionals in the reporting of suspected adverse drug reactions (ADRs) associated with the use of all registered health products, including medicines, old medicines, medical devices and in-vitro diagnostics (IVDs).
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The intent of these guidelines is to develop a holistic, coordinated, proactive and technology driven strategy for management of biological disasters through a culture of prevention, mitigation and preparedness to generate a prompt and effective response in the event of an emergency. Th...e document contains comprehensive guidelines for preparedness activities, biosafety and biosecurity measures, capacity development, specialised health care and laboratory facilities, strengthening of the existing legislative/
regulatory framework, mental health support, response, rehabilitation and recovery, etc. It specifically lays down the approach for implementation of the guidelines by the central ministries/departments, states, districts and other stakeholders, in a time bound manner.
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Annual and medium-term budget preparation processes are the platforms through which specific plans are transformed into actual resource allocation decisions. The aim of this Process Guide is to support key stakeholders involved in these processes (such as the Cabinet, Ministries of Finance and Healt...h, the Parliament, citizens, media, and civil society organizations) to reorient budgetary arrangements in order to facilitate the ability of national governments to respond to the COVID-19 pandemic by delivering, therapeutics, diagnostics, and vaccine services to their populations. Reorienting budgetary arrangements positions governments to sustain the capacity to mitigate and respond to COVID-19 while concurrently delivering other essential health services and working towards Universal Health Coverage (UHC). The reorientation process is an opportunity to better align budgetary arrangements to sustain systemic capacity to prevent emerging health threats over the short, medium, and long terms.
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Lancet Oncol 2022; 23: e251–312Published OnlineMay 9, 2022 https://doi.org/10.1016/S1470-2045(21)00720-8
In sub-Saharan Africa (SSA), urgent action is needed to curb a growing crisis in cancer incidence and mortality.
Without rapid interventions, data estimates show a major increase in cancer mo...rtality from 520 348 in 2020 to about
1 million deaths per year by 2030. Here, we detail the state of cancer in SSA, recommend key actions on the basis of
analysis, and highlight case studies and successful models that can be emulated, adapted, or improved across the
region to reduce the growing cancer crises. Recommended actions begin with the need to develop or update national
cancer control plans in each country. Plans must include childhood cancer plans, managing comorbidities such as
HIV and malnutrition, a reliable and predictable supply of medication, and the provision of psychosocial, supportive,
and palliative care. Plans should also engage traditional, complementary, and alternative medical practices employed
by more than 80% of SSA populations and pathways to reduce missed diagnoses and late referrals. More substantial
investment is needed in developing cancer registries and cancer diagnostics for core cancer tests.
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This document is an evidence-based policy for the implementation of sound tuberculosis (TB) infection control by all stake- holders. It recommends a combination of measures aimed at reducing the risk of TB transmission within populations. The emphasis is on early and rapid diagnosis, and proper mana...gement of TB patients.
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This report investigates the impact of potential misclassification of samples on HIV prevalence estimates for 23 surveys conducted from 2010-2014. In addition to visual inspection of laboratory results, we examined how accounting for potential misclassification of HIV status through Bayesian latent ...class models affected the prevalence estimates. Two types of Bayesian models were specified: a model that only uses the individual dichotomous test results and a continuous model that uses the quantitative information of the EIA (i.e., the signal-to-cutoff values). Overall, we found that adjusted prevalence estimates matched the surveys’ original results, with overlapping uncertainty intervals. This suggested that misclassification of HIV status should not affect the prevalence estimates in most surveys. However, our analyses suggested that two surveys may be problematic. The prevalence could have been overestimated in the Uganda AIDS Indicator Survey 2011 and the Zambia Demographic and Health Survey 2013-14, although the magnitude of overestimation remains difficult to ascertain. Interpreting results from the Uganda survey is difficult because of the lack of internal quality control and potential violation of the multivariate normality assumption of the continuous Bayesian latent class model. In conclusion, despite the limitations of our latent class models, our analyses suggest that prevalence estimates from most of the surveys reviewed are not affected by sample misclassification.
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Despite the considerable improvement in global health, millions of people still lack access to quality health services, including access to effective antimicrobial medicines, or are impoverished as a result of health spending. At the same time, antimicrobial resistance – a consequence of overuse a...nd misuse of antimicrobials – is increasingly a barrier to accessing effective care. The declining effectiveness of antibiotics is driven by multiple factors, many of which can be addressed through well functioning primary health care. However, primary health care has not always had much attention in national health sector responses to
antimicrobial resistance, which often focus on tertiary care, laboratory detection and surveillance. The three pillars of primary health care (community engagement, front-line health services including primary care and essential public health, and multisectoral action on wider health determinants) are central not just to Universal Health Coverage and the Sustainable Development Goals, but also to an effective response to antimicrobial resistance.
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Cervical cancer, along with maternal deaths, has been identified as a national priority in
South Africa as well as other Sub-Saharan African countries. Cervical cancer is the
second most common cancer among women in South Africa, after breast cancer. Due
to limited access to prevention, early dia...gnosis and treatment, cervical cancer is often
fatal.
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