Kasumi Hayasaka

Factors associated with household transmission of SARS‐CoV‐2 omicron variant to health care workers: A retrospective cohort study

Keisuke Kagami, Reiko Oyamada, Tsubasa Watanabe, Sho Nakakubo et autres

AIM: The aim of this study was to determine the risk factors for household transmission of the omicron variant of SARS-CoV-2. BACKGROUND: The household infection rate has been reported to be higher for the omicron variant than for non-omicron variants of SARS-CoV-2. …

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Correlation between antibiotic use and resistance of gram-negative bacteria at a university hospital in Japan from 2013 to 2021: a study using the Japan Surveillance for Infection Prevention and Healthcare Epidemiology (J-SIPHE) system

Keisuke Kagami, Nobuhisa Ishiguro, Sumio Iwasaki, Keisuke Taki et autres

Objectives The Japan Surveillance for Infection Prevention and Healthcare Epidemiology (J-SIPHE) system aggregates information related to antimicrobial resistance (AMR) measures. We aimed to investigate the correlation between antibiotic use and AMR at a university hospital from 2013 to 2021 in a time …

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Breaking away from an endemic state of multidrug-resistant Pseudomonas aeruginosa by daily sink disinfection

Sumio Iwasaki, Rikako Sato, Keisuke Kagami, Kouji Akizawa et autres

Abstract The detection rate of multidrug-resistant Pseudomonas aeruginosa in patients admitted to 2 wards and the intensive care unit decreased from 20.3% (129 of 636 isolates) to 4.2% (37 of 889 isolates) after the start of disinfection of hand washing sinks using …

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SARS-CoV-2 Omicron detection by antigen tests using saliva

Kaoru Murakami, Sumio Iwasaki, Satoshi Oguri, Kumiko Tanaka et autres

The Omicron emerged in November 2021 and became the predominant SARS-CoV-2 variant globally. It spreads more rapidly than ancestral lineages and its rapid detection is critical for the prevention of disease outbreaks. Antigen tests such as immunochromatographic assay (ICA) and chemiluminescent enzyme …

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Correlation between antibiotic use and antibiotic resistance: A multicenter study using the Japan Surveillance for Infection Prevention and Healthcare Epidemiology (J-SIPHE) system in Hokkaido, Japan

Keisuke Kagami, Nobuhisa Ishiguro, Sumio Iwasaki, Takayuki Usami et autres

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SARS-CoV-2 Omicron Detection by Antigen Tests Using Saliva

Kaoru Murakami, Sumio Iwasaki, Satoshi Oguri, Kumiko Tanaka et autres

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Clinical outcomes of intervention for carbapenems and anti-methicillin-resistant Staphylococcus aureus antibiotics by an antimicrobial stewardship team

Keisuke Kagami, Nobuhisa Ishiguro, Takehiro Yamada, Yusuke Niinuma et autres

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Efficacy and safety of colistin for the treatment of infections caused by multidrug-resistant gram-negative bacilli

Keisuke Kagami, Nobuhisa Ishiguro, Takehiro Yamada, Yusuke Niinuma et autres

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SARS-CoV-2 detection by fluorescence loop-mediated isothermal amplification with and without RNA extraction

Keisuke Taki, Isao Yokota, Tatsuya Fukumoto, Sumio Iwasaki et autres

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Pathogenic Effect of Prevotella intermedia on a Mouse Pneumonia Model Due to Methicillin-Resistant Staphylococcus aureus With Up-Regulated α-Hemolysin Expression

Yu Yamashita, Kentaro Nagaoka, Hiroki Kimura, Masaru Suzuki et autres

Background: Methicillin-resistant Staphylococcus aureus (MRSA) is a common causative agent of pneumonia; however, the detailed mechanism underlying severe MRSA pneumonia, including association with oral hygiene or periodontitis, remains poorly characterized. In this study, we examined the pathogenic effect of Prevotella intermedia, a …

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Mass Screening of Asymptomatic Persons for Severe Acute Respiratory Syndrome Coronavirus 2 Using Saliva

Isao Yokota, Peter Y. Shane, Kazufumi Okada, Yoko Unoki et autres

BACKGROUND: Coronavirus disease 2019 (COVID-19) has rapidly evolved to become a global pandemic, largely owing to the transmission of its causative virus through asymptomatic carriers. Detection of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in asymptomatic people is an urgent priority for …

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Utility of the Rapid Antigen Detection Test E. histolytica Quik Chek for the Diagnosis of Entamoeba histolytica Infection in Nonendemic Situations

Yasuaki Yanagawa, Rieko Shimogawara, Tomoyuki Endo, Rika Fukushima et autres

Entamoeba histolytica infection is an increasingly common sexually transmitted infection in Japan. Currently, stool ova and parasite examination (O&P) is the only approved diagnostic method. Here, we assessed the utility of the commercially available rapid antigen detection test (Quik Chek) for E. …

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