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  • Molecular diagnosis of COVID‑19: Current situation

    COVID‑19 is caused by a novel coronavirus (2019‑nCoV or SARS‑CoV‑2) and has become a global public health emergency. Rapid and accurate molecular diagnostic technologies are crucial for the screening, isolation, treatment, prevention and control of COVID‑19. Currently, nucleic acid detection‑based techniques and rapid diagnostic tests that detect antigens or antibodies specific to ...

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  • COVID-19 Pandemic: Review of Contemporary and

    2021-3-17 · It is a faster visual alternative method to rRT-PCR assay with a 95% positive and 100% negative predictive agreement. 144 Additionally, four different lateral flow techniques (ASK COVID-19 IgG/IgM Rapid Test, ALLTEST 2019-nCoV IgG/IgM Rapid Test, Wondfo SARS-CoV-2 Antibody Test, and Dynamiker 2019-nCoV IgG/IgM Rapid Test) showed 100% ...

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  • COVID-19 Diagnostic Strategies Part II: Protein

    2021-4-28 · The COVID-19 diagnostic tools are categorized into two main groups of Nucleic Acid (NA)-based and protein-based tests. To date, nucleic acid-based detection has been announced as the gold-standard strategy for coronavirus detection; however, protein-based tests are promising alternatives for rapid and large-scale screening of susceptible groups.

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  • COVID-19 Diagnostic Strategies Part II: Protein

    2021-4-28 · The Clip COVID Rapid Antigen Test is another FDA EUA approved tool for at-home testing which requires a prescription. Interestingly, the PPA and NPA of the Ellume COVID-19 Home Test are obtained 91% and 96%, respectively, for the asymptomatic cases, and 96% and 100%, respectively, for the symptomatic individuals which are very promising . With ...

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  • Fluorescence immunoassay test kit,

    Novel Coronavirus (2019-nCoV) Neutralizing Antibody Rapid Test 25 tests/kit Method of sample collection: 1. serum 2. plasma 3. whole blood Features: 1 . 1Test ... COVID-19 for antigens SARS-COV-2. infectious disease test kit ... Unique semi-liquid phase fluorescence immunochromatography technology c. High analytical specificity by using highly ...

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  • Diagnostics | Free Full-Text | Antibody Tests in

    2021-5-7 · The PPA and NPA of the test were 84% and 100%, respectively, against the RT-PCR method. The QuickVue At-Home OTC COVID-19 Test from Quidel Corporation is another rapid test to detect SARS-CoV-2 NP qualitatively in direct anterior nasal swabs from COVID-19 suspects within the first six days of the onset of symptoms.

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  • In Vitro Diagnostics for COVID-19: State-of-the-Art ...

    After the initiation of the current outbreak, humans’ lives have been profoundly impacted by COVID-19. During the first months, no rapid and reliable detecting tool was readily available to sufficiently respond to the requirement of massive testing. In this situation, when the development of an effective vaccine requires at least a few months, it is crucial to be prepared by developing and ...

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  • Bioengineering | Free Full-Text | COVID-19

    2020-10-1 · The recent outbreak of the coronavirus disease (COVID-19) has left the world clueless. As the WHO declares this new contagion as a pandemic on the 11 th of March 2020, the alarming rate of the spawn of the disease in such a short period has disarranged the globe. Standing against this situation researchers are strenuously searching for the key traits responsible for this pandemic.

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  • COVID-19: Progress in diagnostics, therapy and

    2020-6-19 · COVID-19: Progress in diagnostics, therapy and vaccination. 1. State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & National Institute of Diagnostics and Vaccine Development in Infectious Disease, School of Public Health, Xiamen University, 361102, China. 2.

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  • In Vitro Diagnostics for COVID-19: State-of-the-Art ...

    2021-5-7 · The PPA and NPA of the test were 84% and 100%, respectively, against the RT-PCR method. The QuickVue At-Home OTC COVID-19 Test from Quidel Corporation is another rapid test to detect SARS-CoV-2 NP qualitatively in direct anterior nasal swabs from COVID-19 suspects within the first six days of the onset of symptoms.

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  • Shengxiang Ge, Xiamen University | ScienceDirect

    A novel coronavirus (severe acute respiratory syndrome coronavirus 2, SARS-CoV-2) emerged in late 2019, causing an outbreak of pneumonia [coronavirus disease 2019 (COVID-19)] globally. Although the use of ready-made reaction mixes can enable more rapid PCR-based diagnosis of COVID-19, the need to transport and store these mixes at low ...

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  • Infectious disease test kit, Infectious disease assay kit ...

    Find your infectious disease test kit easily amongst the 328 products from the leading brands (Erba Mannheim, EKF, Charles River, ...) on MedicalExpo, the medical equipment specialist for your professional purchases.

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  • ++ Diagnosis ++ – COVID Reference

    Using Abbott´s SARS-CoV-2 IgG assay and the Panbio TM COVID-19 IgG/IgM device, the authors found that serum IgG detection alone is insufficient for the diagnosis of active or cured COVID-19, with sensitivity values that range between 60 and 75%, respectively. Detection of IgM adds limited value to the performance of serological strategies.

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  • COVID-19 vaccine in healthy adults aged 18 years or

    2020-9-26 · Healthy adults aged 18 years or older, who were HIV-negative and previous severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection-free, were eligible to participate and were randomly assigned to receive the vaccine at a dose of 1 × 10 11 viral particles per mL or 5 × 10 10 viral particles per mL, or placebo. Investigators ...

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  • An overview of basic molecular biology of SARS-CoV

    2021-6-1 · SARS-CoV-2 belongs to beta coronavirus and COVID-19 is the third zoonotic outbreak of beta-CoVs (Wang et al., 2020a).The first outbreak was due to SARS-CoV, which was originated from bat and civet cat occurred during 2002–2003 and second was MERS-CoV, which began in Saudi Arabia with approximately 2500 cases, 800 deaths and still counting (Wang et al., 2020a; Civljak et al., 2020).

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  • ++ Diagnosis ++ – COVID Reference

    Using Abbott´s SARS-CoV-2 IgG assay and the Panbio TM COVID-19 IgG/IgM device, the authors found that serum IgG detection alone is insufficient for the diagnosis of active or cured COVID-19, with sensitivity values that range between 60 and 75%, respectively. Detection of IgM adds limited value to the performance of serological strategies.

    Get Price
  • Review of Current Advances in Serologic Testing for

    Using a large group of COVID-19–negative patient samples (n = 209) but not a control group of samples from patients with other viral infections or diseases, an excellent specificity ranging from 95% to 100% was reported for all 3 devices. Notably, the sensitivity of the total antibody LFIA had the highest performance at 98%.

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  • Antibody tests for identification of current and past ...

    Cassaniti I, Novazzi F, Giardina F, Salivaro F, Sachs M, Perlini S, et al. Performance of VivaDiagTM COVID-19 IgM/IgG Rapid Test is inadequate for diagnosis of COVID-19 in acute patients referring to emergency room department. Journal of Medical Virology 2020 Mar 30 [Epub ahead of print]. [DOI: 10.1002/jmv.25800]

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  • Development and Potential Usefulness of the COVID

    2020-5-8 · Introduction: COVID-19 Ag Respi-Strip, an immunochromatographic (ICT) assay for the rapid detection of SARS-CoV-2 antigen on nasopharyngeal specimen, has been developed to identify positive COVID-19 patients allowing prompt clinical and quarantine decisions. In this original research article, we describe the conception, the analytical and clinical performances as well as the risk management of ...

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  • The Johns Hopkins Center for Health Security (JHCHS ...

    COVID-19 ELISA pan-Ig Antibody Test University of Arizona Genetics Core for Clinical Services TBG SARS-CoV-2 IgG IgM Rapid Test Kit TBG Biotechnology Corp. IgG: 96.4% IgM: 87.5% Tell Me Fast Novel Coronavirus (COVID-19) IgG/IgM Antibody Test Biocan Diagnostics Inc. IgG: 93.3% IgM: 90% IgG: 96.2% IgM: 98.7% BioCheck SARS-CoV-2 IgG and IgM ...

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  • Virus‐Free and Live‐Cell Visualizing SARS‐CoV‐2 Cell

    2020-12-18 · The IgG kit is an indirect ELISA assay, and the IgM kit is based on the µ‐chain capture method. All three assays used recombinant SARS‐CoV‐2 RBD antigens. The samples were initially tested undiluted, and the positive samples with the signal to a cutoff ratio (S/CO) ≥ 10 were further diluted (1:10, 1:100, 1:1000, and 1:10000) by PBS ...

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  • Diagnostic accuracy of serological tests and kinetics of ...

    2020-4-21 · In New York City, where more than 10,000 people, or about 0.1 percent of the population, have already died from Covid-19, this estimated fatality rate would mean nearly everyone in …

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  • COVID-19 test kit, COVID-19 assay kit - All medical

    COVID-19 test kit. Nucleic Acid Extraction System The magnetic beads and buffer system with unique separation effect can be used to extract high-purity viral DNA/RNA from samples quickly, highly sensitively and efficiently. The extracted and purified ... Compare this product Remove from comparison tool.

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  • Review of the Microbiological Diagnostic

    2021-4-27 · Performance of VivaDiag COVID-19 IgM/IgG Rapid Test is inadequate for diagnosis of COVID-19 in acute patients referring to emergency room department. J Med Virol. (2020) 92:1724–7. 10.1002/jmv.25800 [PMC free article] [Google Scholar]

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  • Virus reagent, Virus reagent kit - All medical device ...

    The RNAsure Corona virus (SARS-CoV-2) RNA extraction kit is designed for the isolation of RNA from nasal/throat swabs collected in viral transfer medium (VTM). COVID 19 RNAsure - Covid-19 RNA Extraction Kit The RNAsure ... Compare this product Remove from comparison tool. DNA purification reagent kit T10096.

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  • ++ Diagnosis ++ – COVID Reference

    Using Abbott´s SARS-CoV-2 IgG assay and the Panbio TM COVID-19 IgG/IgM device, the authors found that serum IgG detection alone is insufficient for the diagnosis of active or cured COVID-19, with sensitivity values that range between 60 and 75%, respectively. Detection of IgM adds limited value to the performance of serological strategies.

    Get Price
  • Review of Current Advances in Serologic Testing for

    Using a large group of COVID-19–negative patient samples (n = 209) but not a control group of samples from patients with other viral infections or diseases, an excellent specificity ranging from 95% to 100% was reported for all 3 devices. Notably, the sensitivity of the total antibody LFIA had the highest performance at 98%.

    Get Price
  • What is an Antibody Test and How Does it Test for

    2020-3-22 · Anxiety around the novel coronavirus, SARS-CoV-2, and the disease it causes, COVID-19, is on the rise as governments all over the world start locking down people, businesses and, in some cases ...

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  • An overview of basic molecular biology of SARS

    2021-4-1 · One of the common types of rapid diagnosis of COVID-19 is detection of antigens and antibodies (in the blood samples of the individuals that have likely been infected by SARS-CoV-2) (Li et al., 2020c). However, antibodies produced against SARS-CoV-2 may counteract with other pathogens resulting in false-positive detection.

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  • The Johns Hopkins Center for Health Security (JHCHS ...

    COVID-19 ELISA pan-Ig Antibody Test University of Arizona Genetics Core for Clinical Services TBG SARS-CoV-2 IgG IgM Rapid Test Kit TBG Biotechnology Corp. IgG: 96.4% IgM: 87.5% Tell Me Fast Novel Coronavirus (COVID-19) IgG/IgM Antibody Test Biocan Diagnostics Inc. IgG: 93.3% IgM: 90% IgG: 96.2% IgM: 98.7% BioCheck SARS-CoV-2 IgG and IgM ...

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