PLoS ONE 13(8): e0202499. https://doi.org/10.1371/journal.pone.0202499
This was a school-based cross-sectional study conducted in 2015 among 305 school children aged 7–16 years from two primary schools located in Ilemela and Magu Districts, north-western Tanzania. Single stool and urine samples w...ere collected from each participant and examined for the presence of Schistosoma mansoni eggs, parasite antigen, and parasite DNA using KK thick smears, POC-CCA tests, and real-time PCR, respectively.
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n this study, low-dose azithromycin did not meet the prespecified non-inferiority margin compared with standard-dose azithromycin in achieving clinical and serological cure in PCR-confirmed active yaws. Only a single participant (with presumed latent yaws) had definitive serological failure. This wo...rk suggests that 20 mg/kg of azithromycin is probably effective against yaws, but further data are needed.
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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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FIND conducted independent evaluations at the University Hospitals of Geneva (HUG), to verify the limit of detection (LOD) and the clinical performance (as reported by the manufacturers) of the following molecular test kits. The LOD analysis was performed using cultured viral stocks from a clinical ...isolate from Switzerland, and quantified using an E gene standard. The clinical performance analysis was conducted on extracted samples from individuals suspected to have COVID-19 that were tested using an in-house PCR protocol that was optimized based on the Tib Molbiol assay.
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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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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
04.März 2021
MEDBOX Issue Brief no. 10
Dieser Issue Brief gibt einen kurzen Überblick über Teststrategie, Testverfahren, Videos zur Handhabung und weiterführende Literatur.
A partir de que el SARS-CoV-2 se detectó en China en diciembre de 2019, la COVID-19 se ha convertido rápidamente
en una pandemia. Los pacientes con COVID-19 presentan síntomas respiratorios inespecíficos de intensidad variable y
en ocasiones se les debe prestar ventilación asistida avanzada. ...Actualmente, el diagnóstico de COVID-19 se confirma
mediante la realización de pruebas analíticas, a saber, la determinación de ARN vírico a través de la reacción en
cadena de la polimerasa con retrotranscriptasa (RT PCR).
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Guide de recommandations rapides 11 juin 2020
Depuis son identification en Chine en décembre 2019, le nouveau coronavirus responsable de la COVID‐19 s’est rapidement propagé pour causer une pandémie. Cette maladie se manifeste par des symptômes respiratoires non spécifiques de gravité var...iable et peut nécessiter une assistance respiratoire importante. Son diagnostic est actuellement confirmé grâce l’identification de l’ARN du virus grâce à un test de laboratoire utilisant la technique de la transcription inverse-amplification génique (en anglais, reverse transcriptase polymerase chain reaction, soit RT-PCR.
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Representative, quality, timely and continuous genetic surveillance of SARS-CoV-2 is critical to the COVID-19 outbreak response. This document provides practical guidance to Global Influenza Surveillance and Response System (GISRS) laboratories and other relevant national laboratories to move beyond... virus detection to genomic sequencing of SARS-CoV-2 PCR positive materials obtained from sentinel surveillance of influenza-like illness (ILI), acute respiratory infection (ARI) and severe acute respiratory infection (SARI). It contains considerations on sample selection for sequencing, numbers of viruses to be sequenced, metadata and timeliness for sharing genetic sequence data (GSD) and opportunities for technical support.
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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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Epidemiologischen Bulletin 32/2021, 27 Juli 2021.Systematisches Testen auf SARS-CoV-2 in Kitas und Schulen kann einen wichtigen Beitrag leisten, um das dortige Infektionsgeschehen besser beurteilen zu können und das Übertragungsrisiko von Infektionen zu reduzieren. Die im Epidemiologischen Bulleti...n 32/2021 veröffentlichte Studie stellt die Validierung der Lolli-Methode und die Implementierung des Testkonzeptes in 32 Kölner Kitas im Zeitraum September 2020 bis März 2021 vor. Das Testkonzept Lolli-Methode basiert auf der Kombination einer einfachen Probenentnahme und anschließender PCR-Pooltestung. Es wird seit April 2021 an allen Kitas und Schulen der Stadt Köln und seit Mai 2021 an allen Grund- und Förderschulen in Nordrhein-Westfalen durchgeführt.
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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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Any individual that meets the suspected case definition of monkeypox should be offered testing in appropriately equipped laboratories by staff trained in the relevant technical and safety procedures. Confirmation of monkeypox virus infection is based on nucleic acid amplification testing (NAAT), usi...ng real-time or conventional polymerase chain reaction (PCR), for detection of unique sequences of viral DNA. PCR can be used alone, or in combination with sequencing. The recommended specimen type for laboratory confirmation of monkeypox is skin lesion material, including swabs of lesion surface and/or exudate, roofs from more than one lesion, or lesion crusts.
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1.0 PURPOSE
To define the procedure for the conduct of in-person meetings in both healthcare and community settings in response to COVID-19 and with respect to Public Health and Social Measures (PHSMs) to reduce the risk of disease transmission. A general risk assessment must be conducted to inform... context specific recommendations.
2.0 SCOPE
The procedure in this document is applicable to all meetings that require convening people
together physically.
3.0 SAFETY AND HYGIENE PROCEDURE
Before entry into the meeting room/venue:
• Presentation of evidence for complete doses of COVID-19 vaccination (depending on COVID-19 vaccine taken) or negative COVID-19 PCR test done within the last 72 hours, or where applicable proof of daily negative RDT result. The Africa Union Trusted Travel platform, with technical support from the PanaBIOS Consortium has implemented an online system that allows Airlines and Port Health services to authenticate and verify traveler’s COVID-19 results certificates in line with international standards, across Africa and beyond.
• Hand hygiene stations should be available at the points of entry.
• All participants must wear a well fitted mask that covers the nose and mouth. Medical masks should be provided all meeting participants.
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By end of March 2022:
42 COVID-19 detection laboratories were assessed in the 1st Quarter 2022.
23 (55%) Labs are reported fully functional, while 19 (45%) requires assistance to fully operate (i.e., medical supplies, equipment, maintenance, and staffing).
34 (89%) labs have RT-...PCR machines, while 4 (11%) doesn’t have.
Most laboratories operate 1 shift of 8 hours 13 (34%), followed by 2 shifts of 16 hours 11 (29%).
Over 1000 testing capacity per day is reported in Tripoli Biotechnical Centre Lab (5,000), Azzawya NCDC Lab (2,500), Tripoli NCDC public health lab (1500), Misrata NCDC Lab (1,300), and Misrata Medical centre Lab (1,300).
The reported needs ranked per priority are equipment, consumables, and staff training; consequently.
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Parasites & Vectors volume 11, Article number: 264 (2018)
Dengue creates a staggering epidemiological and economic burden for endemic countries. Without a specific therapy and with a commercial vaccine that presents some problems relative to its full effectiveness, initiatives to improve vector... control strategies, early disease diagnostics and the development of vaccines and antiviral drugs are priorities. In this study, we present the probable origins of dengue in America and the trajectories of its spread. Overall, dengue diagnostics are costly, making the monitoring of dengue epidemiology more difficult and affecting physicians’ therapeutic decisions regarding dengue patients, especially in developing countries. This review also highlights some recent and important findings regarding dengue in Brazil and the Americas. We also summarize the existing DENV polymerase chain reaction (PCR) diagnostic tests to provide an improved reference since these tests are useful and accurate at discriminating DENV from other flaviviruses that co-circulate in the Americas. Additionally, these DENV PCR assays ensure virus serotyping, enabling epidemiologic monitoring.
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Mem Inst Oswaldo Cruz . 2021 Jan 29;115:e200287. doi: 10.1590/0074-02760200287. eCollection 2021. Sensitivity and negative predictive value were directly affected by sample storage conditions. RT-PCR and virus isolation showed greater dependence on well-conserved samples for an accurate diagnosis