Okayama Igakkai Zasshi (Journal of Okayama Medical Association)
Online ISSN : 1882-4528
Print ISSN : 0030-1558
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Volume 135, Issue 1
Displaying 1-13 of 13 articles from this issue
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The 2021 Okayama Medical Association Awards
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  • Experience with a nosocomial cluster of novel coronavirus infection and the cluster response algorithm
    Koji Fujita, Kazuki Ocho, Tomoka Kadowaki, Takashi Yorifuji, Fumio Ots ...
    2023 Volume 135 Issue 1 Pages 22-33
    Published: April 01, 2023
    Released on J-STAGE: May 01, 2023
    DOIhttps://doi.org/10.4044/joma.135.22
    JOURNAL RESTRICTED ACCESS
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    　The novel coronavirus disease (COVID-19) pandemic that began in 2019 is yet to end, as of the summer of 2022. During the pandemic, community-acquired infections spread easily to healthcare-associated facilities, resulting in COVID-19 clusters among high-risk individuals that have been difficult to contain. Our regional base hospital also experienced a nosocomial cluster of COVID-19 in October 2020 that took 30 days to contain and affected 9 hospital staff and 14 patients. Six patients died due to COVID-19, and six died due to COVID-19-related complications. Two patients were discharged alive. Patient characteristics included ① advanced age (79.0±8.1 years), ② dementia (64.3%), ③ low Prognostic Nutrition Index (31.1 ±7.9), ④ zinc deficiency (50.2±13.1μg/dL), ⑤ vitamin C deficiency (1.6±1.9μg/mL), ⑥ elevated urea nitrogen-to-creatinine ratio (27.4±23.5), ⑦ anticancer and immunosuppressive drug use (78.6%), and ⑧ malignancy (75.6%). This cluster had a very high mortality rate, but the viral spread was contained in a short period. Algorithmizing the cluster response was crucial to controlling this cluster. We report on our actual cluster response algorithm, as well as our strategy and response procedure during the pandemic.
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