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Analysis of a city-wide COVID-19 prevention strategy for aged-care facilities during third and fifth waves of COVID-19 in Kyoto City, Kyoto, Japan.
Nagao, Miki; Matsumura, Yasufumi; Yamamoto, Masaki; Shinohara, Koh; Yukawa, Satomi; Noguchi, Taro; Tsuchido, Yasuhiro; Ikeda, Takeshi.
  • Nagao M; Department of Clinical Laboratory Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan.
  • Matsumura Y; Department of Clinical Laboratory, Department of Infection Prevention, Kyoto University Hospital, Kyoto, Japan.
  • Yamamoto M; Department of Clinical Laboratory Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan.
  • Shinohara K; Department of Clinical Laboratory, Department of Infection Prevention, Kyoto University Hospital, Kyoto, Japan.
  • Yukawa S; Department of Clinical Laboratory Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan.
  • Noguchi T; Department of Clinical Laboratory, Department of Infection Prevention, Kyoto University Hospital, Kyoto, Japan.
  • Tsuchido Y; Department of Clinical Laboratory Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan.
  • Ikeda T; Department of Clinical Laboratory, Department of Infection Prevention, Kyoto University Hospital, Kyoto, Japan.
Influenza Other Respir Viruses ; 16(4): 690-695, 2022 07.
Article in English | MEDLINE | ID: covidwho-1731169
ABSTRACT

BACKGROUND:

During the third wave of the COVID-19 pandemic at the end of 2020, clusters occurred frequently in aged-care facilities (ACFs), which put pressure on the medical field in Japan. Based on this experience, Kyoto University and Kyoto City collaborated to promote a citywide COVID-19 prevention strategy to prevent the spread of COVID-19 within ACFs. The aim of this study was to clarify the effect of the prevention strategy among ACFs in Kyoto City during the third and fifth waves of the pandemic.

METHODS:

During the study period, the following measures were adopted as the prevention strategy in all ACFs (1) active polymerase chain reaction (PCR) mass testing and facility-wide testing when a single case was identified, (2) implementation of strategies to prevent transmission within a facility, and (3) vaccination program for ACFs.

RESULTS:

Of the 1,144 facilities subjected to the mass testing, 71.0% participated in the whole program including active PCR testing. The remainder participated in the rest of the programs. The prevalence of ACF-related COVID-19 cases among total COVID-19 cases in Kyoto City decreased from 7.9% in the third wave to 4.1% in the fourth wave and 2.1% in the fifth wave. The incidence of clusters and proportion of severe elderly cases also decreased during the study period.

CONCLUSIONS:

A city-wide multidisciplinary effort including PCR mass testing and a vaccination program in cooperation with a university and local administrative office successfully reduced the clusters and transmission in ACFs in Kyoto City, Japan.
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Full text: Available Collection: International databases Database: MEDLINE Main subject: COVID-19 Type of study: Diagnostic study / Observational study / Prognostic study Topics: Vaccines Limits: Aged / Humans Country/Region as subject: Asia Language: English Journal: Influenza Other Respir Viruses Journal subject: Virology Year: 2022 Document Type: Article Affiliation country: Irv.12981

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Full text: Available Collection: International databases Database: MEDLINE Main subject: COVID-19 Type of study: Diagnostic study / Observational study / Prognostic study Topics: Vaccines Limits: Aged / Humans Country/Region as subject: Asia Language: English Journal: Influenza Other Respir Viruses Journal subject: Virology Year: 2022 Document Type: Article Affiliation country: Irv.12981