IDEAS home Printed from https://ideas.repec.org/a/gam/jijerp/v19y2022i15p9270-d874766.html
   My bibliography  Save this article

SARS-CoV-2 Delta AY.1 Variant Cluster in an Accommodation Facility for COVID-19: Cluster Report

Author

Listed:
  • Takayuki Ohishi

    (Department of Infection Control and Prevention, Saiseikai Yokohama Eastern Tobu Hospital, 3-6-1 Shimosueyoshi, Tsurumi-ku, Yokohama 230-8765, Japan
    Kanagawa Prefectural Government, 1, Nihonodori, Naka-ku, Yokohama 231-0021, Japan)

  • Takuya Yamagishi

    (Antimicrobial Resistance Research Center, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku Ward, Tokyo 162-8640, Japan)

  • Hitomi Kurosu

    (Antimicrobial Resistance Research Center, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku Ward, Tokyo 162-8640, Japan)

  • Hideaki Kato

    (Kanagawa Prefectural Government, 1, Nihonodori, Naka-ku, Yokohama 231-0021, Japan
    Infection Prevention and Control Department, Yokohama City University Hospital, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan)

  • Yoko Takayama

    (Kanagawa Prefectural Government, 1, Nihonodori, Naka-ku, Yokohama 231-0021, Japan
    Department of Infection Control and Infectious Diseases, Research and Development Center for New Medical Frontiers, Kitasato University School of Medicine, 1-15-1 Kitazato, Minami-ku, Sagamihara 252-0374, Japan
    Department of Infection Control and Prevention, Kitasato University Hospital, 1-15-1 Kitazato, Minami-ku, Sagamihara 252-0375, Japan)

  • Hideaki Anan

    (Kanagawa Prefectural Government, 1, Nihonodori, Naka-ku, Yokohama 231-0021, Japan
    Fujisawa City Hospital, 2-6-1 Fujisawa, Fujisawa 251-8550, Japan)

  • Hiroyuki Kunishima

    (Kanagawa Prefectural Government, 1, Nihonodori, Naka-ku, Yokohama 231-0021, Japan
    Infectious Diseases Course, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-ku, Kawasaki 216-8511, Japan)

Abstract

Background: This study aimed to examine the cause of and effective measures against cluster infections, including the delta AY.1 variant of novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) that occurred in an accommodation facility. Methods: We surveyed the zoning and ventilation systems of the cluster accommodation, examined the staff’s working conditions, conducted an interview, and administered a SARS-CoV-2 test (positive samples were further tested with molecular biological test). Results: Among the 99 employees working at the accommodation, 10 were infected with the delta AY.1 variant. The causes of the cluster infections were close-distance conversations without an unwoven-three-layer mask and contact for approximately five minutes with an unwoven mask under hypoventilated conditions. Conclusions: The Delta AY.1 infection may occur via aerosols and an unwoven mask might not prevent infection in poorly ventilated small spaces. Routine infection detection and responding quickly and appropriately to positive results helps to prevent clusters from spreading.

Suggested Citation

  • Takayuki Ohishi & Takuya Yamagishi & Hitomi Kurosu & Hideaki Kato & Yoko Takayama & Hideaki Anan & Hiroyuki Kunishima, 2022. "SARS-CoV-2 Delta AY.1 Variant Cluster in an Accommodation Facility for COVID-19: Cluster Report," IJERPH, MDPI, vol. 19(15), pages 1-12, July.
    • Handle: RePEc:gam:jijerp:v:19:y:2022:i:15:p:9270-:d:874766
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1660-4601/19/15/9270/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1660-4601/19/15/9270/
    Download Restriction: no
    ---><---

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jijerp:v:19:y:2022:i:15:p:9270-:d:874766. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.