title: Wide dissemination of extended-spectrum β-lactamase-producing Escherichia coli in community residents in the Indochinese peninsula.
abstract: Recent studies have reported a widespread distribution of extended-spectrum β-lactamase (ESBL)-producing bacteria, not only in the nosocomial setting, but also in the community; some local communities in Southeast Asia have been reported to show a high prevalence of ESBL-producing bacteria. However, the details regarding the quantitative/qualitative state of ESBL-producing bacterial spread in Southeast Asia are currently unclear. Thus, the aim of this study was to assess the state of ESBL-producing bacterial spread in community residents from the Indochinese peninsula, as a representative region of Southeast Asia. In order to achieve this aim, local community residents in Laos and Vietnam were examined for fecal carriage of ESBL-producing Enterobacteriaceae, and the findings were compared with data from a previous study in Thailand which was conducted in the same manner as this study. Between 47.0%-70.2% of the Laotian and Vietnamese residents carried ESBL-producing CTX-M genotype Enterobacteriaceae. The most common sub-genotypes of CTX-M were CTX-M-1 (33.0%-47.5%) and CTX-M-9 (47.5%-64.1%), and these rates were similar among all three countries. Taken together, these results confirmed that ESBL-producing Enterobacteriaceae are widely disseminated in Indochinese countries, such as Thailand, Laos, and Vietnam.
authors: Global Collaboration Center, Osaka University, Osaka, Japan.
authors: Tatsuya
authors: T
authors: Nakayama
authors: Faculty of Medicine, University of The Ryukyus, Okinawa, Japan.
authors: Shuhei
authors: S
authors: Ueda
authors: National Institute for Nutrition, Hanoi, Vietnam.
authors: Bui Thi Mai
authors: BT
authors: Huong
authors: National Institute for Nutrition, Hanoi, Vietnam.
authors: Le Danh
authors: le D
authors: Tuyen
authors: Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand.
authors: Chalit
authors: C
authors: Komalamisra
authors: Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand.
authors: Teera
authors: T
authors: Kusolsuk
authors: Faculty of Medicine, University of The Ryukyus, Okinawa, Japan.
authors: Itaru
authors: I
authors: Hirai
authors: Global Collaboration Center, Osaka University, Osaka, Japan ; Osaka Prefectural Institute of Public Health, Osaka, Japan.
authors: Yoshimasa
authors: Y
authors: Yamamoto
keywords: Indochinese peninsula; extended-spectrum β-lactamase (ESBL); fecal carriage; rural residents