投稿分類 群突發處理

主委發表種類: 口頭

投稿標題(中): Outbreak of Chryseobacterium indologenes in a medical intensive care unit at a tertiary hospital in southern Taiwan: Epidemic investigation and containment

投稿標題(英): Outbreak of Chryseobacterium indologenes in a medical intensive care unit at a tertiary hospital in southern Taiwan: Epidemic investigation and containment

投稿摘要: Chryserobacterium indologenes, formerly known as Flavobacterium indologenes, is a yellow pigmented, filamentous, and non-motile Gram-negative bacillus that can be found in soil, plants, foodstuffs and water sources in both community and hospital settings. Between October and December, 2013, a significant increase in hospital-acquired infection (HAI)/colonization due to C. indologenes was found at a medical intensive care unit (ICU) of a tertiary hospital in southern Taiwan. These cases of HAI involved a total of 7 patients with post-surgical wound infection, pneumonia, and/or bacteremia. Investigation of the outbreak by on-site inspection of daily nursing practiceand environmental contamination evaluation was conducted. A total of 86 specimens, including 18 sputum and 68 environmental specimens were collected. C. indologenes was identified from one sputum specimen and 4 surface swabs from the furniture and medical equipments in the ICU. All isolates, including those from patients, demonstrated identical PFGE patterns. Our data suggest that contamination with C. indologenes on a plastic pipe attached to the tap in the washing room have led to the subsequent dissemination of this microbe species in the ICU environment. On-site inspection found that hand hygiene and infection control measures were not strictly implemented. Staff re-education, removal of the contaminated water pipe, and daily cleaning of the environment with hypochlorite solutions successfully terminated the outbreak.

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