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  1. Article ; Online: Two Detailed Plaque Assay Protocols for the Quantification of Infectious SARS-CoV-2.

    Mendoza, Emelissa J / Manguiat, Kathy / Wood, Heidi / Drebot, Michael

    Current protocols in microbiology

    2020  Volume 57, Issue 1, Page(s) ecpmc105

    Abstract: ... to quantitate infectious virions. Measurement of infectious SARS-CoV-2 can be achieved by tissue culture ... Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) has been identified as the causal ... 2019. While SARS-CoV-2 titers can be measured by detection of viral nucleic acid, this method is unable ...

    Abstract Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) has been identified as the causal agent of COronaVIrus Disease-19 (COVID-19), an atypical pneumonia-like syndrome that emerged in December 2019. While SARS-CoV-2 titers can be measured by detection of viral nucleic acid, this method is unable to quantitate infectious virions. Measurement of infectious SARS-CoV-2 can be achieved by tissue culture infectious dose-50 (TCID
    MeSH term(s) Animals ; Betacoronavirus/isolation & purification ; Chlorocebus aethiops ; Clinical Protocols ; Humans ; SARS-CoV-2 ; Staining and Labeling ; Vero Cells ; Viral Plaque Assay/methods
    Keywords covid19
    Language English
    Publishing date 2020-06-19
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1934-8533
    ISSN (online) 1934-8533
    DOI 10.1002/cpmc.105
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Two Detailed Plaque Assay Protocols for the Quantification of Infectious SARSCoV2

    Mendoza, Emelissa J. / Manguiat, Kathy / Wood, Heidi / Drebot, Michael

    Current Protocols in Microbiology

    2020  Volume 57, Issue 1

    Keywords Microbiology ; Parasitology ; Virology ; General Medicine ; covid19
    Language English
    Publisher Wiley
    Publishing country us
    Document type Article ; Online
    ISSN 1934-8525
    DOI 10.1002/cpmc.105
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article: Two Detailed Plaque Assay Protocols for the Quantification of Infectious SARS-CoV-2

    Mendoza, Emelissa J / Manguiat, Kathy / Wood, Heidi / Drebot, Michael

    Curr Protoc Microbiol

    Abstract: ... Here, we describe two detailed plaque assay protocols to quantify infectious SARS-CoV-2 using different ... titer. Plaque assays are a quantitative method of measuring infectious SARS-CoV-2 by quantifying ... The Authors. Basic Protocol: SARS-CoV-2 plaque assay using a solid double overlay method Alternate Protocol ...

    Abstract Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) has been identified as the causal agent of COronaVIrus Disease-19 (COVID-19), an atypical pneumonia-like syndrome that emerged in December 2019. While SARS-CoV-2 titers can be measured by detection of viral nucleic acid, this method is unable to quantitate infectious virions. Measurement of infectious SARS-CoV-2 can be achieved by tissue culture infectious dose-50 (TCID50 ), which detects the presence or absence of cytopathic effect in cells infected with serial dilutions of a virus specimen. However, this method only provides a qualitative infectious virus titer. Plaque assays are a quantitative method of measuring infectious SARS-CoV-2 by quantifying the plaques formed in cell culture upon infection with serial dilutions of a virus specimen. As such, plaque assays remain the gold standard in quantifying concentrations of replication-competent lytic virions. Here, we describe two detailed plaque assay protocols to quantify infectious SARS-CoV-2 using different overlay and staining methods. Both methods have several advantages and disadvantages, which can be considered when choosing the procedure best suited for each laboratory. These assays can be used for several research purposes, including titration of virus stocks produced from infected cell supernatant and, with further optimization, quantification of SARS-CoV-2 in specimens collected from infected animals. © 2019 The Authors. Basic Protocol: SARS-CoV-2 plaque assay using a solid double overlay method Alternate Protocol: SARS-CoV-2 plaque assay using a liquid overlay and fixation-staining method.
    Keywords covid19
    Publisher WHO
    Document type Article
    Note WHO #Covidence: #437154
    Database COVID19

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