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 Reports suggest that misdiagnosis of HIV status may occur when suboptimal testing algorithms and out-of-date testing strategies are used.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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The HIV drug resistance report 2021 summarizes findings from 38 countries that had finalized the surveys by the time of this report and shared data with WHO.
Pretreatment HIVDR to non-nucleoside reverse-transcriptase inhibitors (NNRTI) can affect more than 10% of adults starting therapy and is fo...und up to 3 times more often in people who had previous exposure to antiretroviral drugs. In addition, nearly half of infants newly diagnosed with HIV has HIVDR to NNRTI before initiating treatment.The high levels of observed NNRTI pretreatment HIVDR among emphasize the need to fast-track the transition to WHO-recommended dolutegravir-based ART.
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The Alere Filariasis Test Strip (FTS) is a rapid diagnostic test recommended for mapping, monitoring and transmission assessment surveys (TAS) for the qualitative detection of Wuchereria bancrofti antigen in human blood samples. The FTS has replaced the Binax Now filariasis immunochromatographic tes...t (ICT), which also detects the same antigen in blood samples. The Brugia Rapid point-of-care cassette test (BRT) manufactured by Reszon Diagnostics is recommended for use during TAS to detect IgG4 antibody against Brugia spp. in human blood samples.
Read the Filariasis Test Strip (FTS) Bench Aid. This bench aid provides detailed instruction on the proper use of the new Filariasis Test Strip used for the detection of Wuchereria bancrofti antigen.
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When setting national drinking-water quality regulations and standards, many countries consider the WHO Guidelines for drinking-water quality (GDWQ). To better understand the extent to which the GDWQ are used and reflected in these standards, this global review summarizes information from 104... countries and territories on values specified in national drinking-water quality standards for aesthetic, chemical, microbiological and radiological parameters.
The information provided will support regulatory agencies and other key stakeholders to access and compare data when setting or revising national drinking-water quality regulations and standards.
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Desde hace muchas décadas, los microbios, en particular las bacterias, se han vuelto cada vez más resistentes a diversos antimicrobianos. El aval de la Asamblea Mundial de la Salud al Plan de Acción Mundial sobre la resistencia a los antimicrobianos, en mayo de 2015, y la Declaración política d...e la reunión de alto nivel de la Asamblea General sobre la resistencia a los antimicrobianos, en septiembre de 2016, reconocen que la resistencia a los antimicrobianos es una amenaza para la salud pública mundial. Estas iniciativas políticas reconocen el uso excesivo e inapropiado de los antimicrobianos como el principal factor que favorece dicha resistencia, así
como la necesidad de optimizar el uso de estos medicamentos.
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This results report for the biennium 2020–2021 presents the progress towards the triple billion targets, outcomes and outputs, based on the GPW 13 results framework and indicators. It uses structured methodologies, both quantitative and qualitative, for measuring and analysing the achievements and... challenges to achieving them, and includes country and impact case studies to exemplify how the Organization’s work is driving health impacts at the country level, where it matters most. For the first time, the WHO Secretariat is reporting on its investments, results and performance through a scorecard methodology for every country or territory it serves.
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The Guidance on global monitoring for diabetes prevention and control by WHO provides a comprehensive framework to support countries in tracking and managing diabetes prevention, care, and outcomes. This document outlines indicators across 4 domains: health system determinants, service delivery, ris...k factors, and outcomes/impacts. The guidance helps countries align their monitoring efforts with WHO’s global diabetes targets, Global Diabetes Compact, and relevant global NCD targets.
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Guidelines for the care and treatment of persons diagnosed with chronic hepatitis C virus infection
This manual describes methods for investigating clusters or outbreaks that may be of chemical origin and describes the importance of a structured, coordinated, collaborative multidisciplinary, multi-agency approach at local, regional, national and international levels.
Available in English, French and Spanish
Available in French and English
Effective malaria case management requires quick access to diagnostics and antimalarial treatments to reduce illness and death. Artemisinin-based combination therapy (ACT) has been essential to malaria treatment since 2001, as it combines artemisinin for rapid parasite reduction with a partner drug ...to ensure complete cure. However, resistance to antimalarial drugs, where parasites survive standard doses, threatens malaria control.
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The manual is written for clinicians working at the district hospital (first-level referral care) who diagnose and manage sick adolescents and adults in resource constrained settings. It aims to support clinical reasoning, and to provide an effective clinical approach and protocols for the managemen...t of common and serious or potentially life-threatening conditions at district hospitals. The target audience thus includes doctors, clinical officers, health officers, and senior nurse practitioners. It has been designed to be applicable in both high and low HIV prevalence settings.
Volume 2 provides a symptom-based approach to clinical care for acute and subacute conditions (including mental health). It provides short summaries of the management of diseases that affect multiple systems of the body, focusing on communicable diseases. It also includes the chronic or long-term management of HIV, TB, alcohol, and substance use disorders.
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It is impossible to address the many complex needs of respiratory virus surveillance with a single surveillance system. Multiple systems, investigations and studies must each be fit-for-purpose to specific priority surveillance objectives, and only together can they provide essential information to ...policy-makers. In essence, each surveillance approach fit together as “tiles in a mosaic” that provides a complete picture of respiratory viruses and the impact of associated illnesses and interventions at the country level. This mosaic framework demonstrates how surveillance approaches may be implemented as coordinated and collaborative systems, well-matched to specific priority objectives.
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Bulletin of the World Health Organization Volume 93, Number 9, September 2015, 589-664