based on the WHO Bench Aids for the diagnosis of intestinal parasites;
Tutor’s Guide: perform specific laboratory techniques; identify intestinal parasites by genus and species; quantify helminth eggs in faeces by Kato-Katz procedure.
This report, published in conjunction with a summary overview of results of rounds 1–8, is the eighth and final report in a series of laboratory-based evaluations of rapid diagnostic tests (RDTs) for malaria. It provides a comparative measure of their performance in a standardized way to distingu...ish between well and poorly performing tests.
These results constitute the laboratory evaluation component of the WHO prequalification process for malaria RDTs and inform the current WHO procurement recommendations. In round 8, 35 RDTs from 17 manufacturers were assessed. For the first time the evaluation included an assessment of product performance against a panel of P. falciparum parasites with pfhrp2/3 gene deletions and therefore not expressing HRP2.
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Guidelines for Good Clinical Laboratory Practices (GCLP) outlines the principles and procedures to be followed by medical laboratories involved in clinical research and/or patient care so as to provide quality data which can be used for health research and patient treatment. As the use of laboratory... tests (often expensive) are increasingly becoming a part of medical diagnosis and research, generation of quality data would be a cost-effective and ethically sound strategy.
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The present DHR-ICMR guidelines comprehensively address the various concerns regarding the clinical assessment, treatment, and laboratory diagnosis of rickettsial diseases in India and the world. It is hoped that physicians, health care workers, the scientific community, the regulatory agencies, pub...lic health care professionals and the public at large will be benefited by these guidelines.
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This guide includes information relevant for tuberculosis (TB) program and laboratory managers, as well as Ministry of Health officials across disease programs interested in establishing integrated solutions for specimen referral. Though TB-focused in name, it offers integration-oriented assessment,... design, and monitoring guidance related to improving coordination and efficiency, and is relevant for other programs as well. Country case studies include viral load and early infant diagnosis (EID) in Uganda and EID in Ethiopia.
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Комплект учебных материалов по Xpert MTB/RIF
The modules (1-12) are based on materials originally developed by FIND, KNCV and Cepheid, and are in PowerPoint format for country customization. Depending on the audience, modules may be selected and adapted according to nee...d (e.g. basic users, supervisors, clinicians). Topics covered include: Overview of TB and diagnostics, biosafety, specimen collection, procurement, installation, Xpert MTB/RIF technology, results interpretation, reporting, troubleshooting, maintenance, a clinical guide, and quality assurance.
Please download each manual directliy from the website
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The modules (1-12) are based on materials originally developed by FIND, KNCV and Cepheid, and are in PowerPoint format for country customization. Depending on the audience, modules may be selected and adapted according to need (e.g. basic users, supervisors, clinicians). Topics covered include: Over...view of TB and diagnostics, biosafety, specimen collection, procurement, installation, Xpert MTB/RIF technology, results interpretation, reporting, troubleshooting, maintenance, a clinical guide, and quality assurance.
Please download each manual directliy from the website
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The modules (1-12) are based on materials originally developed by FIND, KNCV and Cepheid, and are in PowerPoint format for country customization. Depending on the audience, modules may be selected and adapted according to need (e.g. basic users, supervisors, clinicians). Topics covered include: Over...view of TB and diagnostics, biosafety, specimen collection, procurement, installation, Xpert MTB/RIF technology, results interpretation, reporting, troubleshooting, maintenance, a clinical guide, and quality assurance.
Please download each manual directliy from the website
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Information note.
This information note provides a strategic overview of key implementation considerations for diagnostic integration using these devices, and is primarily intended for use by national laboratory services and TB, HIV, and hepatitis programme managers.
It may also be of inte...rest to managers of maternal, newborn and child health programmes and sexual and reproductive health programmes, international and bilateral agencies, and organizations that provide financial and technical support to the relevant national health programmes.
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Prequalification of Male Circumcision Devices
PQMC_007 v1 16 December 2011
Outline
• Welcome and objectives
• Microbiology, epidemiology and clinical presentation
• Surveillance for imported cases including case definitions
• Laboratory diagnosis • Infection prevention and hospital readiness
• Patient flow and actions required at each step
• Co-ord...inating a public health response
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The speed of developing diagnostics for SARS-CoV-2, the causative agent of coronavirus disease 2019 (COVID-19), has been quite remarkable. Diagnostics have focused on nucleic acid amplification testing (NAAT) to identify infected individuals in acute-phase disease for timely implementation of mitiga...tion strategies and case management. More and more immunodiagnostics, mostly rapid diagnostic tests, are being made available as an alternative to NAATs. This type of test can be used out-of-laboratory conditions at large scale.
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The latest update (28 January 2021) includes the following addition and revision:
biosafety aspects for working with antigen-detecting rapid diagnostic test;
handling new variants of SARS-CoV-2 in the laboratory;
updated assay decontamination before disposal;
personal protectiv...e equipment (PPE) for specimen collection;
addressing chemical hazards and their safe disposal; and
the fourth edition of the WHO Laboratory Biosafety Manual (LBM4) is now available and the terminology in this guidance was aligned with the LBM4.
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The latest update (28 January 2021) includes the following addition and revision:
biosafety aspects for working with antigen-detecting rapid diagnostic test;
handling new variants of SARS-CoV-2 in the laboratory;
updated assay decontamination before disposal;
personal protectiv...e equipment (PPE) for specimen collection;
addressing chemical hazards and their safe disposal; and
the fourth edition of the WHO Laboratory Biosafety Manual (LBM4) is now available and the terminology in this guidance was aligned with the LBM4.
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To meet the need for laboratory diagnosis to be integrated in community care, the new 2022 Update describes point-of-care tests that can be performed both in district laboratories and peripheral healthcare facilities by non-specialist staff. Also included are recently developed self-tests.
Biosensors and Bioelectronics: X Volume 10, May 2022, 100100; This article provides an overview of dengue disease, the working principles, the significance of the various conventional and biosensor detection strategies, the benefits and problematic conditions of the reported methods. The present hu...rdles of transferring laboratory research into real-world technological implementations and the future possibilities for detecting devices for viral diagnosis are highlighted in this study.
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It is Zika virus (ZIKV) that most often causes these neurological effects it appears to be the only arbovirus than can cause congenital malformations such as microcephaly. In any case, more scientific tests are needed to establish the causal relationship between the virus and this malformation (7-10...).
This document is a practical tool designed to help health workers improve clinical diagnosis and provide timely care for patients infected
with the dengue, chikungunya, or Zika virus. It is intended mainly for
health workers in primary care facilities where laboratory diagnosis of
arboviruses is not always available. However, this guide may also be
very useful in hospitals that provide second- and third-level care, as it
describes the clinical manifestations of each of the three most important
arboviral diseases currently found in the Region, the elements for
differential diagnosis, and their clinical behavior.
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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...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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Cholera is a transmissible diarrhoeal infection caused by Vibrio cholerae. Endemic and/or epidemic in over 40 countries (mainly in Africa and Asia), cholera continues to be a major global public health issue.
The World Health Organization (WHO) estimates that the number of cases reported worldwid...e represents in reality only 5 to 10% of actual cases.
This guide is intended for medical and non-medical staff responding to a cholera outbreak. It attempts to provide concrete answers to the questions and problems faced by staff, based on the recommendations of reference organisations, such as WHO and UNICEF, as well as Médecins Sans Frontières’ experience in the field.
It is divided into 8 chapters. Chapter 1, Cholera overview, outlines the epidemiological and clinical features of cholera. Chapter 2, Outbreak investigation, explains the method and stages of a field investigation, from the alert to implementation of initial activities. Chapter 3, Cholera control measures, details measures and tools to prevent and/or control cholera transmission and mortality in populations affected, or at risk of being affected, by an epidemic (curative care, prevention means and health promotion activities). Chapter 4, Strategies for epidemic response, addresses the roll-out strategies of the measures described in Chapter 3 which depend on context (e.g. urban, rural, endemic, non-endemic setting, etc.), resources and particular constraints. Chapter 5, Cholera case management, details the different stages of cholera treatment, from diagnosis through to cure.
Chapter 6, Setting up cholera treatment facilities, focuses on the installation of treatment facilities that vary in size and complexity according to operational requirements (treatment centres and units and oral rehydration points). Chapter 7, Organisation of cholera treatment facilities, describes the organisation of these specialized facilities in terms of human resources, supply, water, hygiene and sanitation, etc. Chapter 8, Monitoring and evaluation, presents the key data to be collected and analysed during an epidemic to facilitate a tailored response and evaluate its quality and effectiveness.
The guide includes various practical tools in the appendices to facilitate activities (e.g. water quality tests, job descriptions, documents, etc.). Moreover, the toolbox also contains additional tools in editable formats (individual patient file, cholera case register, pictograms).
Despite all efforts, it is possible that certain errors may have been overlooked in this guide. Please inform the authors of any errors detected.
To ensure that this guide continues to evolve while remaining adapted to field realities, please send any comments or suggestions.
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On 13 August 2024, Africa Centres for Disease Control and Prevention (Africa CDC) declared the ongoing Mpox outbreak a Public Health Emergency of Continental Security (PHECS). This was followed the next day by the World Health Organization (WHO), which extended the alert internationally as a public ...health emergency of international concern (PHEIC). After these declarations, many countries have made efforts to mobilize resources to introduce or expand laboratory testing, surveillance, and response activities. In particular, as the number of suspected cases surges in the Democratic Republic of Congo (DRC), Burundi, and the Central African Republic, and an increasing number of new countries report cases, there is an urgent need to implement testing to strengthen the Mpox response. However, access to appropriate quality assured diagnostics is a challenge. There is limited information on important characteristics, such as available test kits’ performance and ability to detect relevant clades.
To address the challenge of mpox access in the continent, the Africa CDC Diagnostic Advisory Committee (DAC) met in Kigali from 19-23 August 2024 to review the available evidence on molecular tests for Mpox and to shortlist tests that may be useful for Mpox testing in countries. The shortlist aims to provide guidance to Africa CDC, countries and partners on appropriate high-quality molecular tests to procure and use for the mpox response.
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