ID | 65198 |
Sort Key | 7
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タイトル(別表記) | A descriptive analysis for the comparison of the symptoms and severity of coronavirus disease 2019 (COVID-19) in each epidemic period in Okayama City
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著者 |
松尾 瑠美
岡山大学大学院医歯薬学総合研究科 疫学・衛生学
松本 尚美
岡山大学学術研究院医歯薬学域 疫学・衛生学
門脇 知花
岡山大学大学院医歯薬学総合研究科 疫学・衛生学
高尾 総司
岡山大学学術研究院医歯薬学域 疫学・衛生学
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抄録 | Japan experienced four major epidemic periods (i.e., the 3rd-6th waves) of COVID-19 from January 2020 to March 2022. A different strain predominated in each period: the wild-type strain, an Alpha variant, a Delta variant, and an Omicron variant were predominant in waves 3, 4, 5, and 6, respectively. In this study, we conducted a descriptive analysis to investigate the differences in symptoms and severity during each epidemic period. We analyzed a total of 31,037 patients with COVID-19 who were reported to the Okayama City Public Health Center between February 1, 2020 and March 31, 2022. We described and compared the proportion of symptoms, the number and proportion of severe COVID-19 cases, and the number and proportion of deaths for each epidemic period. We also compared the proportion of severe COVID-19 cases depending on the number of vaccinations for the 5th and 6th waves.
Differences in symptoms and severity were observed in each epidemic period. In the 5th and 6th waves, the results suggested that vaccination had a preventive effect against severe COVID-19. |
キーワード | 新型コロナウイルス感染症(coronavirus disease 2019 )
COVID-19
症状(symptom)
重症度(severity)
ワクチン(vaccination)
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備考 | 原著(Original)
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出版物タイトル |
岡山医学会雑誌
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発行日 | 2022-12-01
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巻 | 134巻
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号 | 3号
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出版者 | 岡山医学会
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出版者(別表記) | Okayama Medical Association
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開始ページ | 160
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終了ページ | 165
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ISSN | 0030-1558
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NCID | AN00032489
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資料タイプ |
学術雑誌論文
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関連URL | isVersionOf https://doi.org/10.4044/joma.134.160
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OAI-PMH Set |
岡山大学
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言語 |
日本語
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著作権者 | Copyright (c) 2022 岡山医学会
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論文のバージョン | publisher
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査読 |
有り
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DOI | |
Eprints Journal Name | joma
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