Impact of vaccination on the symptoms of hospitalised patients with SARS-CoV-2 Delta variant (B.1.617.1) infection

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Abstract

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  1. SciScore for 10.1101/2022.02.08.22270506: (What is this?)

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

    Table 1: Rigor

    EthicsIRB: As requested by French ethics and regulatory laws, the ethical committee of the French-speaking Society of Infectious Diseases (SPILF) (IRB00011642) gave its approval for the study (N°2022-0101), and the study was declared to the French National Commission for Informatics and Liberties (CNIL MR004: n°2224742).
    Sex as a biological variablenot detected.
    Randomizationnot detected.
    Blindingnot detected.
    Power Analysisnot detected.

    Table 2: Resources

    No key resources detected.


    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: We detected the following sentences addressing limitations in the study:
    Our study has several limitations. Firstly, due to the retrospective design of the study, some data retrieved from the medical files may have been erroneous or not completely accurate. However, the high number of studied patients, and comprehensive analysis on patients of known risk factors for adverse outcomes helped to reduce risk of biases. Secondly, we did not measure anti-Spike antibody titers in vaccinated patients at admission, a previously described predictive risk factor for SARS-CoV-2 infection and Covid-19 27; it would have helped to better understand whether severe infections in vaccinated subjects were due to waning of the neutralising antibody vaccine response. Moreover, we used ICU admission as a severity criterion; however, it is usually considered that older patients with many comorbidities would not benefit from ICU admission in terms of survival. Therefore, not being admitted to ICU does not necessarily mean that there is no severe form of Covid-19. In conclusion, patients hospitalised with a SARS-CoV-2 infection with the delta VOC have less marked severity criteria when they are vaccinated more than 14 days before hospitalisation, especially in case of elderly patients. These data should be provided when communicating information about Covid-19 vaccination with subjects at risk of severe Covid-19 because of their age or comorbidities.

    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.