LAM test as a diagnostic aid in patients with HIV and suspected tuberculosis: technical guidelines
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.
La détection directe des protéines virales du SRAS-CoV-2 (antigènes) dans les écouvillons nasaux et autres sécrétions respiratoires à l'aide de tests immunologiques à flux latéral (également appelés tests de diagnostic rapide, TDR) offre une méthode plus rapide et moins coûteuse pour te...ster le SRAS-CoV-2 que la méthode de référence, les tests d'amplification des acides nucléiques (TAAN). Ces lignes directrices provisoires offrent des recommandations sur les utilisations prioritaires des tests de diagnostic rapide à détection d'antigène (TDR-Ag) dans des populations et des contextes spécifiques, notamment (i) pour la détection primaire des cas chez les personnes symptomatiques suspectées d'être infectées et les personnes asymptomatiques à haut risque de COVID-19, (ii) pour la recherche des contacts, (iii) pendant les enquêtes sur les épidémies et (iv) pour surveiller les tendances de l'incidence de la maladie dans les communautés. Les TDR-AG répondant aux exigences minimales de performance peuvent être utilisés en dehors des milieux cliniques et des laboratoires, y compris dans les communautés, par des opérateurs formés conformément aux instructions. Le guide fournit en outre des recommandations sur la mise en œuvre, la sélection des produits et le stockage
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Testing and diagnosis of hepatitis B (HBV) and C (HCV) infection is the gateway for access to both prevention and treatment services, and is a crucial component of an effective response to the hepatitis epidemic. Early identification of persons with chronic HBV or HCV infection enables them to recei...ve the necessary care and treatment to prevent or delay progression of liver disease. Testing also provides an opportunity to link people to interventions to reduce transmission, through counselling on risk behaviours and provision of prevention commodities (such as sterile needles and syringes) and hepatitis B vaccination.
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Interim guidance, 6 October 2021
Direct detection of SARS-CoV-2 viral proteins (antigens) in nasal swabs and other respiratory secretions using lateral flow immunoassays (also known as rapid diagnostic tests, RDTs) offers a faster and less expensive method to test for SARS-CoV-2 than the reference ...method, nucleic acid amplification tests (NAATs). This interim guidance offers recommendations on the priority uses of antigen-detecting rapid diagnostic tests (Ag-RDTs) in specific populations and settings, including (i) for primary case detection in symptomatic individuals suspected to be infected and asymptomatic individuals at high risk of COVID-19, (ii) for contact tracing, (iii) during outbreak investigations and (iv) to monitor trends of disease incidence in communities. Ag-RDTs meeting minimum performance requirements can be used outside of clinical and laboratory settings, including in communities, by trained operators in accordance with instructions. The guidance additionally provides recommendations on implementation, product selection and storage.
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SOP- Quality Assurance of Malaria Diagnostic Tests
Probenmaterial für die PCR-Diagnostik zum direkten Erregernachweis
Verpackung und Versand
Empfehlungen zum Umgang mit Probenmaterial
Direkter Erregernachweis durch RT-PCR
Antikörpernachweise (indirekter Nachweis einer Infektion)
Antigennachweise
Bemerkungen zur Interp...retation von Laborergebnissen
Ansprechpartner zu Fragen der Labordiagnostik und Referenzuntersuchungen:
Konsiliarlabor für Coronaviren
Gesellschaft für Virologie
Ständig aktualisiert
Vorgehen bei Patienten mit bestätigter SARS-CoV-2-Infektion
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The Global Schistosomiasis Alliance Diagnostic Workstream has developed a communications piece listing all commercially available diagnostics for schistosomiasis
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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Despite the development of point-of-care diagnostic tests for syphilis, chlamydia, gonorrhoea, and trichomoniasis, none comply with all WHO criteria. This analysis overviews landscape analyses of point-of-care diagnostic technologies for Chlamydia trachomatis, Neisseria gonorrhoeae, Trichomonas vagi...nalis and syphilis, available and in the pipeline. The target audience for the target product profiles is broad and includes clinicians, researchers working on diagnostics, laboratory experts, including, microbiologists and virologists, public health experts, epidemiologists, developers, and representatives for manufactures, including biotech engineers, policy-and decision-makers as well as representatives from regulatory bodies and agencies, donor agencies and international organizations.
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HAT diagnosis relies on laboratory techniques because clinical signs and symptoms are unspecific. Serodiagnostic tests exist only for Tbg and are based on the detection of specific antibodies, thus they are not confirmatory of infection. With the current low disease prevalence, the positive predicti...ve value of serological tests is particularly low. Field-applicable tools include the card agglutination test for trypanosomiasis (CATT) used mainly in active screening by specialized mobile teams, and the rapid diagnostic tests that are more suitable for individual testing at point-of-care. Confirmation of Tbg infection requires microscopic examination of body fluids necessitating specific training. The best performing methods are laborious and reach 85–95% diagnostic sensitivity when performed by skilled personnel.
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HAT diagnosis relies on laboratory techniques because clinical signs and symptoms are unspecific. Serodiagnostic tests exist only for Tbg and are based on the detection of specific antibodies, thus they are not confirmatory of infection. With the current low disease prevalence, the positive predicti...ve value of serological tests is particularly low. Field-applicable tools include the card agglutination test for trypanosomiasis (CATT) used mainly in active screening by specialized mobile teams, and the rapid diagnostic tests that are more suitable for individual testing at point-of-care.
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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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This page serves to provide up to date information on serology tests that are in development or available for use. Importantly, many of these tests have been approved for research use only, which indicates that they are not yet approved for use as a public health diagnostic tool or for at-home diagn...osis. Some of these tests may move forward to approval for diagnostic use, while others may be appropriate for research only.
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Technical guidelines for testing for COVID-19 in the clinical laboratories of the National Integrated Health System.
O recente aumento dos casos de microcefalia e outras patologias neurológicas potencialmente associadas à infecção pelo vírus Zika provocou um aumento da procura de testes laboratoriais para detectar a infecção. Os grupos prioritários para os testes de diagnóstico devem ser
indivíduos sin...tomáticos e mulheres grávidas assintomáticas com possível exposição ao vírus Zika. O presente documento fornece orientações sobre as actuais estratégias de testes da infecção pelo vírus Zika. Este documento será revisto e actualizado à medida que surgirem novas informações.
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Im Kapitel zu Diagnostik zum Nachweis von COVID-19 bekommen Sie ausführlich die verschiedenen Testmethoden erklärt, es können Videos zu PCR, RAchenabstrich, etc. aufgerufen werden
WHO recommends replacing western blotting and line immunoassays with simpler tests in HIV testing services. These simpler tests include rapid diagnostic tests (RDTs) that can be used at the point-of-care, and enzyme immunoassays (EIAs).
These tests get results to the client faster, produce accura...te results more often, cost less, can be performed by various cadres of health providers, and can thus facilitate greater access and uptake of HIV testing services among those who need it most.
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The Alere Filariaisis Test Strip (FTS) is a diagnostic test used to detect filarial antigens for lymphatic filariasis. This training video was developed by ENVISION in collaboration with the US Centers for Disease Control and Prevention, with funding provided by the US Agency for International Deve...lopment.
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This document is a guide defining requirements for quality and safety for malaria rapid diagnostic testing services to safeguard the quality of the results, the safety of the operators and patients and that of the environment for use by national malaria control programmes, regulators, implementers a...nd rapid diagnostic providers.
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