Virucidal activity of a proprietary blend of plant-based oils (Viruxal) against SARS-CoV-2 and influenza viruses – an in vitro study

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Abstract

Background

The emergence of a novel coronavirus known as SARS-CoV-2 resulting in a global pandemic COVID-19 has led to a dramatic loss of life worldwide and presented an unprecedented challenge to public health. Viruxal is a medical device in a form of a nasal and oral spay containing a a proprietary blend of plant-based oils which acts against enveloped viruses. The aim of this study was to evaluate the virus deactivation activity of Viruxal against SARS-CoV-2 and Influenza A(H1N1) viruses.

Methods

An assay to detect virucidal activity was performed with four concentrations of Viruxal on two virus suspensions. Assessments were made based on log reduction values measured from the assay.

Results

Viruxal exhibited virucidal activity by reducing virus titer more than 90% for the enveloped viruses SARS-CoV-2 and influenza A(H1N1) after 30 minutes contact.

Conclusions

Viruxal was validated for its potential usefulness as a medical device for treatment and prevention of enveloped respiratory viruses.

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  1. SciScore for 10.1101/2021.05.31.446420: (What is this?)

    Please note, not all rigor criteria are appropriate for all manuscripts.

    Table 1: Rigor

    Ethicsnot detected.
    Sex as a biological variablenot detected.
    Randomizationnot detected.
    Blindingnot detected.
    Power Analysisnot detected.
    Cell Line Authenticationnot detected.

    Table 2: Resources

    Experimental Models: Cell Lines
    SentencesResources
    Virus, Media and Cells: SARS-CoV-2 virus (USA-WA1/2020) was obtained from a patient with laboratory-confirmed COVID-19 in January 2020 in Washington, USA and inoculated in Vero 76 cells cultured in Minimum Essential Medium (MEM) (HyClone, Cytiva) supplemented with 2 % fetal bovine serum (FBS) (HyClone, Cytiva) and 50 μg/mL gentamicin (Sigma).
    Vero 76
    suggested: None
    Human influenza A virus strain, A/California/07/09 (H1N1) pdm09 (International Reagent Resource, IRR) was grown in Madin-Darby canine kidney (MDCK) cells with serum-free MEM (HyClone, Cytiva) containing 1 IU/mL of trypsin (Sigma), 1 μg/mL EDTA (Sigma) and gentamicin (Sigma).
    MDCK
    suggested: CLS Cat# 602280/p823_MDCK_(NBL-2, RRID:CVCL_0422)

    Results from OddPub: We did not detect open data. We also did not detect open code. Researchers are encouraged to share open data when possible (see Nature blog).


    Results from LimitationRecognizer: An explicit section about the limitations of the techniques employed in this study was not found. We encourage authors to address study limitations.

    Results from TrialIdentifier: No clinical trial numbers were referenced.


    Results from Barzooka: We did not find any issues relating to the usage of bar graphs.


    Results from JetFighter: We did not find any issues relating to colormaps.


    Results from rtransparent:
    • Thank you for including a conflict of interest statement. Authors are encouraged to include this statement when submitting to a journal.
    • Thank you for including a funding statement. Authors are encouraged to include this statement when submitting to a journal.
    • No protocol registration statement was detected.

    Results from scite Reference Check: We found no unreliable references.


    About SciScore

    SciScore is an automated tool that is designed to assist expert reviewers by finding and presenting formulaic information scattered throughout a paper in a standard, easy to digest format. SciScore checks for the presence and correctness of RRIDs (research resource identifiers), and for rigor criteria such as sex and investigator blinding. For details on the theoretical underpinning of rigor criteria and the tools shown here, including references cited, please follow this link.