Epidemiologisches Bulletin3 | 202121. Januar 2021 (online vorab)
9 March 2022, Timely and accurate diagnostic testing for SARS-CoV-2 is an essential part of a comprehensive COVID-19 response strategy. Ag-RDTs can be performed by individuals in which they collect their own specimen, perform a simple rapid test and interpret their test result themselves at a time a...nd place of their choosing, termed COVID-19 self-testing. This interim guidance provides a new recommendation that COVID-19 self-testing, using SARS-CoV-2 Ag-RDTs, should be offered as part of SARS-CoV-2 testing services. It also includes implementation considerations that can guide decisions on whether, and how, to adopt self-testing in different contexts, including the populations being prioritized; the disease prevalence in that population; and the impact on accessibility of testing, health care services and result reporting.
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La presente publicación describe la evidencia científica disponible sobre la precisión diagnóstica de las pruebas rápidas de detección de antígenos para SARS-COV-2. El conocimiento de las pruebas diagnósticas para el coronavirus del síndrome respiratorio agudo grave 2 (SARS-COV-2) sigue evo...lucionando, y una comprensión clara de la naturaleza de las pruebas y la interpretación de sus hallazgos es importante. Este punto de vista describe cómo interpretar 2 tipos de pruebas diagnósticas comúnmente en uso para las infecciones SARS-COV-2: reacción en cadena de polimerasa con transcriptasa reversa (RT-PCR) y ensayo por inmunoabsorción ligado a enzimas IgM e IgG (ELISA)— y cómo los resultados pueden variar con el tiempo.
Esta publicación pertenece al compendio Publicaciones Minsa sobre COVID-19
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Limited coverage of laboratory services and long turnaround times from real-time reverse transcription-polymerase chain reaction (rRT-PCR) for the detection of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) has been insufficient to meet the demands in many African countries in response... to the COVID-19 pandemic. Rapid antigen diagnostic tests (AgRDTs) are potentially useful as they can inform healthcare workers and individuals of their infection status at point-of-care testing
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ASLM in collaboration with the Africa Centres for Disease Control and Prevention, and in partnership with the Clinton Health Access Initiative, Amref and Last Mile Health present the Quality Assurance Framework for SARS-CoV-2 Antigen Rapid Testing for Diagnosis of COVID-19. This framework aims to pr...ovide general technical guidance to African Union Members States on the rollout, establishment, implementation, monitoring, and evaluation of SARS-CoV-2 Ag RDT interventions so as to effectively and efficiently detect, control and minimise errors in the performance of COVID-19 laboratory testing processes. It describes the core components for quality assurance, resources mobilisation and advocacy for scale up, monitoring, evaluation, learning and accountability for SARS-CoV-2 implementation.
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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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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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This algorithm is addressed to laboratories
with established capacity(molecular, antigenic and/orserological) to detect dengue (DENV), Zika (ZIKV), and chikungunya(CHIKV) as part of the differential diagnosis for arborviruses. A BSL2 containment level is required to handle suspected samples.
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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Este algoritmo está dirigido a aquellos laboratorios que cuentan con capacidad instalada para la detección (molecular, antigénica y/o serológica) de dengue (DENV), Zika (ZIKV) y chikungunya(CHIKV),y como parte del diagnóstico diferencial para Arbovirus. Para la manipulación de muestras sosp...echosas, se requiere un nivel de contención BSL2
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Three classess of tests are now recommended in the latest consolidated guideles on tests for tuberculosis infection. It includes for the first-time a new class of Mycobacterium tuberculosis antigen-based skin tests (TBSTs), and the two existing classes of tests: the tuberculin skin test (TST) and t...he interferon-gamma release assays (IGRAs).
IGRAs and TBSTs use Mycobacterium tuberculosis complex specific antigens and represent a significant advancement to TST which has been used for over half a century.
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18 Janaury 2021
EU/EEA Member States and the UK have increased their laboratory capacity tremendously over the past 11 months as the majority of the Member States reported sufficient testing capacity until March 2021.
Many countries are adding rapid antigen detection tests (RADT) to their ...testing strategies in order to reduce pressure on RT-PCR testing.
Some Member States have already included RADT in their case definition.
The main bottlenecks, such as shortages of laboratory consumables and human resources, as well as sample storing facilities, continue to exist and may affect the overall laboratory response to COVID-19.
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These WHO interim recommendations for use of the BBV152 COVAXIN vaccine were developed on the basis of advice issued by the Strategic Advisory Group of Experts on Immunization (SAGE) and the evidence summary included in the background document and annexes referenced below.
This document has been ...updated: version 15 March 2022.
The vaccine is formulated from an inactivated SARS-CoV-2 antigen and is presented in single dose vials and multidose vials of 5, 10 and 20 doses.
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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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orientations provisoires, 25 juin 2021. Des tests de diagnostic rapides et précis sont un outil essentiel pour prévenir et contrôler la propagation du COVID-19. Ce document décrit les recommandations relatives aux stratégies nationales de dépistage et à l'utilisation de la PCR et des tests an...tigéniques rapides dans différents scénarios de transmission de l'épidémie de COVID-19, y compris la manière dont les tests pourraient être rationalisés dans les milieux à faibles ressources. Tous les tests doivent être suivis d'une réponse de santé publique forte, comprenant l'isolement des personnes dont le test est positif et la fourniture de soins, la recherche des contacts et la mise en quarantaine des contacts.
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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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Interium guidance, 25 June 2021Timely and accurate diagnostic testing is an essential tool in preventing and controlling the spread of COVID-19. This document describes recommendations for national testing strategies and the use of PCR and rapid antigen tests in different transmission scenarios of t...he COVID-19 outbreak, including how testing might be rationalized in low resource settings. All testing should be followed by a strong public health response including isolating those who test positive and providing them care, contact tracing and quarantine of contacts.
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