Impact of the COVID-19 pandemic on infectious disease treatment and infection control in Japan: A retrospective multicenter study

Objectives: The COVID-19 pandemic affected infection control practices such as hand hygiene and antimicrobial use in hospital settings; however, its specific effects on hospital infection control remain unclear. This study aimed to determine the effect of the COVID-19 pandemic on infection control p...

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Main Authors: Shigeki Kakuno, Waki Imoto, Koichi Yamada, Yasutaka Ihara, Kayoko Yamada, Makoto Tanaka, Gaku Kuwabara, Kana Sawa, Tsuneko Terachi, Tetsu Mizutani, Miyoshi Kitazato, Mayumi Yoshimura, Naoko Yoshii, Ayumi Shintani, Hiroshi Kakeya
Format: Article
Language:English
Published: Elsevier 2025-07-01
Series:Heliyon
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Online Access:http://www.sciencedirect.com/science/article/pii/S2405844025018766
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author Shigeki Kakuno
Waki Imoto
Koichi Yamada
Yasutaka Ihara
Kayoko Yamada
Makoto Tanaka
Gaku Kuwabara
Kana Sawa
Tsuneko Terachi
Tetsu Mizutani
Miyoshi Kitazato
Mayumi Yoshimura
Naoko Yoshii
Ayumi Shintani
Hiroshi Kakeya
author_facet Shigeki Kakuno
Waki Imoto
Koichi Yamada
Yasutaka Ihara
Kayoko Yamada
Makoto Tanaka
Gaku Kuwabara
Kana Sawa
Tsuneko Terachi
Tetsu Mizutani
Miyoshi Kitazato
Mayumi Yoshimura
Naoko Yoshii
Ayumi Shintani
Hiroshi Kakeya
author_sort Shigeki Kakuno
collection DOAJ
description Objectives: The COVID-19 pandemic affected infection control practices such as hand hygiene and antimicrobial use in hospital settings; however, its specific effects on hospital infection control remain unclear. This study aimed to determine the effect of the COVID-19 pandemic on infection control practices. Methods: This retrospective study was conducted at four Japanese hospitals. Data on hand sanitizer use, antimicrobial use, positive blood cultures, and detection of multidrug-resistant organisms (MDRO) were collected monthly from April 2015 to March 2023. The pre-COVID-19 period (April 2015 to March 2020) was compared with the COVID-19 period (April 2020 to March 2023). Results: Hand sanitizer use per inpatient and antimicrobial use, particularly broad-spectrum antimicrobial use, increased significantly during the COVID-19 period. The number of positive blood cultures increased, whereas the number of MDRO infections remained unchanged, suggesting increased contamination. Conclusions: Increased hand hygiene during COVID-19 did not reduce MDRO infections, possibly due to improper technique or timing. Increases in broad-spectrum antimicrobial prescriptions may have contributed to the lack of reduction in MDRO infections. Ongoing antimicrobial use monitoring, hand hygiene education, and promotion of effective infection control and antimicrobial stewardship by infection control teams are crucial for maintaining infection control during epidemics.
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spelling doaj-art-5f313cf5d1584c269fce083c77fd0b3c2025-08-20T03:50:22ZengElsevierHeliyon2405-84402025-07-011112e4349010.1016/j.heliyon.2025.e43490Impact of the COVID-19 pandemic on infectious disease treatment and infection control in Japan: A retrospective multicenter studyShigeki Kakuno0Waki Imoto1Koichi Yamada2Yasutaka Ihara3Kayoko Yamada4Makoto Tanaka5Gaku Kuwabara6Kana Sawa7Tsuneko Terachi8Tetsu Mizutani9Miyoshi Kitazato10Mayumi Yoshimura11Naoko Yoshii12Ayumi Shintani13Hiroshi Kakeya14Department of Infection Control Science, Osaka Metropolitan University Graduate School of Medicine, 1-4-3 Asahi-machi, Abeno-ku, Osaka, 545-8585, Japan; Department of Infectious Disease Medicine, Osaka Metropolitan University Hospital, 1-5-7 Asahi-machi, Abeno-ku, Osaka, 545-8586, Japan; Osaka International Research for Infectious Diseases (OIRCID), Osaka Metropolitan University, 1-2-7-601 Asahi-machi, Abeno-ku, Osaka, 545-0051, JapanDepartment of Infection Control Science, Osaka Metropolitan University Graduate School of Medicine, 1-4-3 Asahi-machi, Abeno-ku, Osaka, 545-8585, Japan; Department of Infectious Disease Medicine, Osaka Metropolitan University Hospital, 1-5-7 Asahi-machi, Abeno-ku, Osaka, 545-8586, Japan; Osaka International Research for Infectious Diseases (OIRCID), Osaka Metropolitan University, 1-2-7-601 Asahi-machi, Abeno-ku, Osaka, 545-0051, Japan; Corresponding author. Department of Infection Control Science, Osaka City University, Graduate School of Medicine, 1-4-3 Asahi-machi, Abeno-ku, Osaka 545-8585, Japan.Department of Infection Control Science, Osaka Metropolitan University Graduate School of Medicine, 1-4-3 Asahi-machi, Abeno-ku, Osaka, 545-8585, Japan; Department of Infectious Disease Medicine, Osaka Metropolitan University Hospital, 1-5-7 Asahi-machi, Abeno-ku, Osaka, 545-8586, Japan; Osaka International Research for Infectious Diseases (OIRCID), Osaka Metropolitan University, 1-2-7-601 Asahi-machi, Abeno-ku, Osaka, 545-0051, JapanDepartment of Medical Statistics, Osaka Metropolitan University Graduate School of Medicine, 1-4-3 Asahi-machi, Abeno-ku, Osaka, 545-8585, Japan; Clinical Research Promotion Unit, Clinical Therapeutic Trial Center, Ehime University Hospital, Ehime, Japan; Data Intelligence Department, Digital Transformation Management Division, Global DX, Daiichi Sankyo Co., Ltd., Tokyo, JapanDepartment of Infection Control Center, Bell Land General Hospital, Osaka, JapanDepartment of Infection Control Center, Bell Land General Hospital, Osaka, JapanDepartment of Respiratory Medicine, Bell Land General Hospital, Osaka, JapanDepartment of Microbiology Laboratory, Daini Osaka Police Hospital, Osaka, JapanInfection Control Center, Osaka Police Hospital, Osaka, JapanInfection Control Center, Osaka Police Hospital, Osaka, JapanDepartment of Clinical Laboratory, Yodogawa Christian Hospital, Osaka, JapanDepartment of Quality Management, Yodogawa Christian Hospital, Osaka, JapanDepartment of Respiratory Medicine, Yodogawa Christian Hospital, Osaka, JapanDepartment of Medical Statistics, Osaka Metropolitan University Graduate School of Medicine, 1-4-3 Asahi-machi, Abeno-ku, Osaka, 545-8585, JapanDepartment of Infection Control Science, Osaka Metropolitan University Graduate School of Medicine, 1-4-3 Asahi-machi, Abeno-ku, Osaka, 545-8585, Japan; Department of Infectious Disease Medicine, Osaka Metropolitan University Hospital, 1-5-7 Asahi-machi, Abeno-ku, Osaka, 545-8586, Japan; Osaka International Research for Infectious Diseases (OIRCID), Osaka Metropolitan University, 1-2-7-601 Asahi-machi, Abeno-ku, Osaka, 545-0051, JapanObjectives: The COVID-19 pandemic affected infection control practices such as hand hygiene and antimicrobial use in hospital settings; however, its specific effects on hospital infection control remain unclear. This study aimed to determine the effect of the COVID-19 pandemic on infection control practices. Methods: This retrospective study was conducted at four Japanese hospitals. Data on hand sanitizer use, antimicrobial use, positive blood cultures, and detection of multidrug-resistant organisms (MDRO) were collected monthly from April 2015 to March 2023. The pre-COVID-19 period (April 2015 to March 2020) was compared with the COVID-19 period (April 2020 to March 2023). Results: Hand sanitizer use per inpatient and antimicrobial use, particularly broad-spectrum antimicrobial use, increased significantly during the COVID-19 period. The number of positive blood cultures increased, whereas the number of MDRO infections remained unchanged, suggesting increased contamination. Conclusions: Increased hand hygiene during COVID-19 did not reduce MDRO infections, possibly due to improper technique or timing. Increases in broad-spectrum antimicrobial prescriptions may have contributed to the lack of reduction in MDRO infections. Ongoing antimicrobial use monitoring, hand hygiene education, and promotion of effective infection control and antimicrobial stewardship by infection control teams are crucial for maintaining infection control during epidemics.http://www.sciencedirect.com/science/article/pii/S2405844025018766COVID-19Multidrug-resistant organismsHand sanitizerAntimicrobial stewardshipInfection control
spellingShingle Shigeki Kakuno
Waki Imoto
Koichi Yamada
Yasutaka Ihara
Kayoko Yamada
Makoto Tanaka
Gaku Kuwabara
Kana Sawa
Tsuneko Terachi
Tetsu Mizutani
Miyoshi Kitazato
Mayumi Yoshimura
Naoko Yoshii
Ayumi Shintani
Hiroshi Kakeya
Impact of the COVID-19 pandemic on infectious disease treatment and infection control in Japan: A retrospective multicenter study
Heliyon
COVID-19
Multidrug-resistant organisms
Hand sanitizer
Antimicrobial stewardship
Infection control
title Impact of the COVID-19 pandemic on infectious disease treatment and infection control in Japan: A retrospective multicenter study
title_full Impact of the COVID-19 pandemic on infectious disease treatment and infection control in Japan: A retrospective multicenter study
title_fullStr Impact of the COVID-19 pandemic on infectious disease treatment and infection control in Japan: A retrospective multicenter study
title_full_unstemmed Impact of the COVID-19 pandemic on infectious disease treatment and infection control in Japan: A retrospective multicenter study
title_short Impact of the COVID-19 pandemic on infectious disease treatment and infection control in Japan: A retrospective multicenter study
title_sort impact of the covid 19 pandemic on infectious disease treatment and infection control in japan a retrospective multicenter study
topic COVID-19
Multidrug-resistant organisms
Hand sanitizer
Antimicrobial stewardship
Infection control
url http://www.sciencedirect.com/science/article/pii/S2405844025018766
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